⚡ The productivity gap between professionals who use AI tools well and those who do not is widening every month in 2026 — and it compounds. This guide covers the AI tools delivering the highest real-world productivity returns across writing, research, meetings, project management, coding, and automation — with honest assessments of what each tool does best, where it falls short, and how to build a stack that genuinely transforms your working day.
Last Updated: May 3, 2026
Productivity tools have always promised more than they delivered. For decades, the pattern was consistent: a new category of software — email, project management, instant messaging, document collaboration — launched with promises of transformative efficiency gains, was adopted widely, and ultimately delivered incremental improvement alongside new forms of distraction and overhead. AI productivity tools are different — not because the marketing is more honest, but because the underlying capability is genuinely different. AI tools that can draft documents, synthesize research, answer complex questions, transcribe meetings, generate code, and automate repetitive workflows are not doing what previous productivity software did faster. They are doing things that previously required human time and expertise — compressing hours of work into minutes.
The evidence for this is measurable. According to McKinsey’s research on generative AI, knowledge workers who actively integrate AI tools into their workflows report productivity improvements of 20–40% on core work tasks — not by eliminating jobs, but by eliminating the low-value, high-time-cost groundwork that previously consumed the majority of working hours. A writer who spends four hours per day on AI-accelerated first drafts, research synthesis, and editing can produce the quality and volume that would previously have required six to eight hours. A developer who uses AI code generation and review can ship features in half the time. A manager who uses AI meeting intelligence recovers hours of documentation time each week.
This guide covers the AI tools delivering the highest genuine productivity returns in 2026 — organized by the work category where they deliver the most impact. For each tool, we cover what it does best, where it falls short, the specific workflows where it delivers the highest return, and the guardrails every professional must maintain to use AI tools responsibly without sacrificing quality, accuracy, or professional credibility.
1. 📊 The AI Productivity Tool Landscape in 2026
The AI productivity tool market has matured from the fragmented, overlapping ecosystem of 2023 into a more structured landscape where clear category leaders have emerged and where the integration between tools has improved significantly. The most productive professionals in 2026 do not use a single AI tool — they use a deliberately chosen stack of complementary tools, each optimized for specific work categories.
The Stack Principle: The highest AI productivity gains come not from the single best tool but from the right combination of tools that cover the full range of high-value, high-time-cost work in a specific role. A content marketer’s optimal stack looks very different from a software developer’s, which looks different from a financial analyst’s. The first investment is identifying which work categories consume the most time in your specific role — the second is finding the AI tools that best compress those categories.
According to Deloitte’s research on AI and knowledge work, professionals who have been using AI tools for more than 12 months report significantly higher productivity gains than recent adopters — confirming that AI tool proficiency is a compounding skill. The productivity advantage of early, deliberate adopters over late adopters is widening, not narrowing, as the tools improve and as proficient users develop increasingly refined workflows that extract more value from each tool.
| Work Category | Highest-Impact AI Application | Time Saved (Reported Average) | Leading Tools |
|---|---|---|---|
| Writing and Drafting | First draft generation, editing, structural development | 40–60% of drafting time | Claude, ChatGPT, Notion AI |
| Research and Analysis | Information synthesis, source discovery, competitive intelligence | 50–70% of research time | Perplexity, ChatGPT, Claude |
| Meetings and Communication | Transcription, summarization, action item extraction | 4–6 hours per week | Otter.ai, Fireflies, Microsoft Copilot |
| Coding and Development | Code generation, debugging, documentation, code review | 30–55% of development time | GitHub Copilot, Cursor, Claude |
| Project Management | Status reporting, task generation, risk identification | 3–5 hours per week | Notion AI, ClickUp AI, Microsoft Copilot |
| Workflow Automation | Multi-step process automation connecting multiple tools | Variable — high for repetitive workflows | Zapier AI, Make, n8n |
2. 🤖 Category 1: AI Writing and Research Assistants
Writing and research are the work categories where AI delivers the most consistently high productivity returns across the widest range of professional roles. Nearly every knowledge worker produces documents, emails, reports, and presentations — and nearly every knowledge worker spends significant time on research before writing. AI writing and research assistants compress both activities dramatically.
Claude (Anthropic) — Best for Complex, Long-Form Work
Claude has established itself as the preferred AI assistant for professionals working on substantive, nuanced, and intellectually demanding content in 2026. Its distinguishing characteristics for professional productivity are:
- Extended Context Window (200K tokens): Claude can process and reason across extremely long documents — an entire contract, a comprehensive research report, a book manuscript — maintaining coherence and providing consistent, contextually aware assistance throughout. This is the most practically significant capability for professionals working with large documents.
- Nuanced Writing Quality: Claude produces prose that is notably more analytically substantive, stylistically varied, and intellectually coherent than most competing models — making it the preferred tool for high-stakes professional writing where generic AI output is unacceptable.
- Calibrated Uncertainty: Claude is more likely than competing models to acknowledge uncertainty rather than generate confident hallucinations — a critical quality for professionals whose credibility depends on accuracy.
- System Prompt Adherence: Claude follows complex, multi-part writing instructions with unusual fidelity — making it the most reliable choice for brand-voice-specific or style-guide- constrained content production.
Highest-Value Workflows: Executive communications, strategic documents, policy analysis, complex research synthesis, legal and compliance writing, technical explanations for non-technical audiences.
ChatGPT (OpenAI) — Best for Versatility and Research
ChatGPT’s browsing capability, extensive plugin ecosystem, and Custom GPT functionality make it the most versatile general-purpose AI assistant in 2026. For research-intensive work, ChatGPT’s ability to search the current web, synthesize findings, and present structured summaries with source references is significantly more productive than using a general search engine.
Highest-Value Workflows: Research-backed documents, competitive intelligence, market analysis, technical documentation with code, team-wide AI workflows using Custom GPTs, and any task requiring current information beyond a knowledge cutoff.
Perplexity — Best for Research and Fact-Checking
Perplexity has established itself as the AI-powered research tool of choice for professionals who need accurate, sourced answers to factual questions — providing a fundamentally better research experience than either traditional search engines or general LLMs that generate answers without verifiable sources.
- Source-Grounded Answers: Every Perplexity response includes numbered citations to the specific web sources used — enabling immediate verification of factual claims rather than requiring the user to independently locate and check sources.
- Real-Time Web Search: Perplexity searches the current web for every query — providing answers that incorporate the most recent information rather than being limited by a training data cutoff.
- Research Mode: Perplexity’s Deep Research feature conducts extended multi-step research on complex topics — generating comprehensive research reports with full source attribution that would take hours to produce manually.
Highest-Value Workflows: Competitive research, market research, fact-checking AI-generated content, staying current on rapidly evolving topics, and any research task where source verification is critical. See our comparison in the Perplexity vs. SearchGPT vs. Genspark guide for the full AI research platform analysis.
3. 🎙️ Category 2: AI Meeting Intelligence and Communication
Meetings consume an enormous fraction of professional time — and the administrative work that surrounds meetings (note-taking, writing summaries, distributing action items, updating project management tools) consumes additional time that AI meeting intelligence tools eliminate almost entirely. For professionals attending 15–25 meetings per week, AI meeting tools often deliver the single largest absolute time saving of any tool in the productivity stack.
Microsoft Copilot for Teams — Best for Microsoft 365 Environments
For organizations operating in the Microsoft 365 ecosystem, Copilot for Teams is the most integrated and most immediately deployable meeting intelligence solution. It generates real-time transcription during Teams meetings, produces structured meeting summaries with key decisions and action items, enables catch-up for late joiners, and integrates with Outlook and Microsoft Planner to automatically create follow-up tasks from meeting action items.
The integration advantage is significant: Copilot for Teams connects meeting intelligence directly to the broader Microsoft 365 workflow — linking meeting outputs to email, calendar, project management, and document collaboration without requiring manual transfer between separate tools. See our complete guide on the AI Meeting Copilot Policy for the governance framework every organization needs before deploying meeting AI tools.
Highest-Value Workflows: Executive meeting capture, project status calls, client meeting documentation, and any organization standardizing on Microsoft 365 infrastructure.
Otter.ai — Best for Cross-Platform Meeting Intelligence
Otter.ai provides AI meeting transcription and summarization across all major video platforms — Zoom, Microsoft Teams, Google Meet — and in-person meetings via mobile app. Its real-time transcription capability enables participants to search and reference meeting content during the meeting itself, not just after it.
- Speaker Identification: Otter automatically identifies and labels different speakers in a meeting — enabling structured transcripts that attribute each statement to the correct participant without manual editing.
- Action Item Extraction: AI identifies and extracts action items from meeting content — generating a prioritized list of commitments with attributed owners.
- Searchable Archive: All meetings are stored in a searchable archive — enabling retrieval of specific discussions, decisions, and commitments across months of meeting history.
Highest-Value Workflows: Client meetings requiring accurate documentation, multi- platform organizations, solo professionals and consultants managing high meeting volumes.
Fireflies.ai — Best for Sales and Customer-Facing Teams
Fireflies adds a layer of CRM and conversation intelligence on top of meeting transcription — making it particularly valuable for sales, customer success, and business development teams. Its integration with Salesforce, HubSpot, and other major CRM platforms automatically pushes meeting summaries and key topics into the relevant CRM record — eliminating the manual data entry that consumes significant sales team time.
Highest-Value Workflows: Sales call documentation, customer success meeting capture, CRM hygiene automation, and conversation analytics for sales coaching.
4. 💻 Category 3: AI for Coding and Software Development
Software development is the professional category where AI productivity tools have delivered the most dramatic and most measurable productivity improvements. AI code generation, code completion, bug detection, and code review tools have compressed development timelines in ways that are visible in GitHub commit frequency, feature delivery velocity, and developer satisfaction across the industry.
GitHub Copilot — Best for IDE-Integrated Code Assistance
GitHub Copilot — now powered by multiple underlying models including Claude and GPT-4o — is the most widely deployed AI coding tool in professional software development. Its native integration with VS Code, JetBrains IDEs, Neovim, and other major development environments makes it the path of least resistance for most development teams.
- Context-Aware Code Completion: Copilot completes code based on the full context of the current file, related files in the project, and natural language comments — producing completions that are significantly more contextually appropriate than simple autocomplete
- Test Generation: Copilot generates unit tests for existing functions — dramatically reducing the time required for test coverage improvement
- Code Explanation: Copilot explains unfamiliar code in plain language — reducing the time developers spend understanding legacy code or third-party libraries
- Documentation Generation: Automatically generates docstrings, API documentation, and inline comments for existing code
GitHub’s own research reports that developers using Copilot complete tasks 55% faster than without it — a productivity improvement that has been independently corroborated by multiple published studies on AI coding assistance impact. For a related guide on AI coding tools, see our AI for Coding and Software Development guide.
Cursor — Best for AI-Native Development Experience
Cursor is an AI-native code editor built from the ground up around AI assistance rather than adding AI features to an existing editor. Its Composer feature enables developers to describe changes they want to make in natural language — and Cursor generates the complete implementation across multiple files, handling the coordination of changes that standard copilots cannot manage.
- Multi-File Editing: Cursor’s AI can make coordinated changes across multiple files simultaneously — enabling refactoring, feature addition, and architecture changes at a scope that single-file code completion cannot address
- Codebase Awareness: Cursor indexes the entire codebase and uses this context when generating code — producing suggestions that are consistent with existing patterns, naming conventions, and architectural decisions
- Chat with Codebase: Developers can ask natural language questions about their codebase — “where is the authentication logic implemented?” or “what happens when a payment fails?” — and receive accurate answers drawn from the actual code
Highest-Value Workflows: Large refactoring projects, new feature implementation across multiple files, onboarding to unfamiliar codebases, and architecture-level code changes.
5. 📋 Category 4: AI for Project Management and Knowledge Work
Project management and knowledge work — the organizing, planning, status tracking, and knowledge synthesis that keeps teams coordinated and informed — consume a disproportionate fraction of professional time relative to the value they directly deliver. AI tools are compressing these activities significantly, enabling leaner project teams and reducing the administrative overhead that scaling organizations typically impose on their most experienced people.
Notion AI — Best for Knowledge Management and Documentation
Notion AI integrates AI assistance directly into the knowledge management and documentation environment where many organizations already operate — enabling AI-assisted writing, summarization, and analysis within the same workspace as the documents, databases, and project plans it supports.
- Document Generation: Generate meeting agendas, project briefs, process documentation, and status reports from structured prompts within Notion — producing publishable drafts in seconds
- Knowledge Base Q&A: Ask natural language questions across all Notion content — enabling team members to find information in the knowledge base without knowing exactly where it is stored
- Automated Summaries: Generate summaries of meeting notes, project updates, and research documents — keeping stakeholders informed without requiring them to read full documents
- Table and Database Generation: Generate structured Notion databases from natural language descriptions — accelerating the creation of project tracking systems, resource databases, and content calendars
ClickUp AI — Best for Project and Task Management
ClickUp AI embeds AI assistance throughout the project and task management workflow — generating task descriptions from brief notes, writing status update drafts, identifying risks in project plans, and summarizing progress across project portfolios for executive reporting.
Highest-Value Workflows: Project status reporting, sprint planning, risk documentation, and executive stakeholder communication across large project portfolios.
Microsoft Copilot (M365) — Best for Enterprise Productivity
Microsoft 365 Copilot — integrated across Word, Excel, PowerPoint, Outlook, Teams, and OneNote — provides the most comprehensive enterprise AI productivity platform available in 2026. For organizations already invested in the Microsoft 365 ecosystem, Copilot eliminates the friction of switching between AI tools and work tools — bringing AI assistance to wherever the work is happening.
- Excel Copilot: Analyzes data, generates formulas, creates charts, and identifies trends — enabling non-analysts to perform analyses that previously required Excel expertise
- PowerPoint Copilot: Generates complete presentation structures from prompts, transforms Word documents into presentations, and suggests design improvements
- Outlook Copilot: Drafts email responses, summarizes email threads, and prepares meeting briefings from related email and calendar content
- Word Copilot: Drafts documents from prompts, rewrites sections for different audiences, and summarizes long documents
See our full comparison in the Microsoft Copilot vs. ChatGPT Enterprise guide for the detailed evaluation of which enterprise AI platform delivers the best returns for different organizational profiles.
6. 🔄 Category 5: AI Workflow Automation
Workflow automation — connecting multiple tools and automating repetitive multi-step processes — has historically required technical expertise to implement. AI-enhanced automation platforms in 2026 make sophisticated workflow automation accessible to non-technical professionals, enabling the automation of processes that previously required dedicated development resources.
Zapier AI — Best for Cross-Tool Automation Without Code
Zapier’s AI features enable professionals to build sophisticated automation workflows through natural language — describing the automation they want in plain English and having Zapier’s AI generate the workflow configuration. The platform connects more than 6,000 applications, making it the broadest automation platform available for knowledge worker workflows.
AI-enhanced Zapier automation workflows for productivity include:
- Automatically summarizing new emails and creating tasks in project management tools for action-required items
- Routing meeting transcripts from Otter.ai to Notion, extracting action items, and creating tasks in ClickUp — all automatically after each meeting
- Monitoring specific news sources or social media for topics of interest and delivering AI-summarized briefings to Slack or email on a defined schedule
- Automating the creation of personalized outreach sequences from CRM data — generating and scheduling personalized messages at scale
Make (formerly Integromat) — Best for Complex Multi-Step Automation
Make provides a visual workflow builder with significantly more complexity and flexibility than Zapier — enabling multi-branch conditional logic, data transformation, and error handling that more sophisticated automation scenarios require. For technical teams or power users who need more control over automation logic than Zapier’s simpler interface provides, Make offers the flexibility to build genuinely complex automation systems.
7. 🧰 Building Your Personal AI Productivity Stack
The most productive professionals in 2026 do not use every AI tool available — they use a deliberately chosen, complementary set of tools that cover their highest-value, highest-time-cost work categories without creating tool fragmentation that itself becomes a productivity tax.
| Role | Recommended Core Stack | Highest Return Use Cases |
|---|---|---|
| Executive / Senior Manager | Microsoft Copilot M365 + Perplexity + Otter.ai or Fireflies | Strategic document drafting, market research, meeting documentation, executive communications |
| Knowledge Worker / Analyst | Claude + Perplexity + Notion AI | Research synthesis, report drafting, knowledge base management, data analysis |
| Software Developer | GitHub Copilot or Cursor + Claude for complex reasoning | Code generation, debugging, documentation, architecture analysis, test generation |
| Content Creator / Marketer | Claude + Perplexity + Jasper or Copy.ai | Long-form content, research-backed articles, campaign copy, SEO content |
| Sales Professional | Fireflies + ChatGPT + CRM AI (Einstein / HubSpot AI) | Call documentation, outreach personalization, proposal drafting, CRM hygiene |
| Project Manager | Otter.ai + ClickUp AI or Notion AI + ChatGPT | Status reporting, risk documentation, meeting capture, stakeholder communications |
8. 🛡️ The Essential Guardrails for AI Productivity Tools
The productivity gains from AI tools are real and significant — but professionals who use them without appropriate guardrails risk producing work that damages rather than enhances their professional reputation. The following guardrails are non-negotiable for responsible professional use of AI productivity tools.
Guardrail 1: Verify Every Factual Claim
AI productivity tools — including research assistants like Perplexity that provide source citations — can generate inaccurate information. The hallucination risk is real across all tools and all models. Every specific factual claim, statistic, citation, or data point in AI-generated work must be independently verified before it is included in work that will be published, presented, or acted upon. This is non- negotiable for any professional whose credibility depends on accuracy.
Guardrail 2: Maintain Your Professional Voice and Standards
AI productivity tools produce competent, serviceable output — but rarely output that carries the distinctive voice, professional judgment, and contextual awareness that defines excellent professional work. Treat AI output as high-quality raw material that requires your professional editing, refinement, and judgment before it represents your work product — not as finished work ready for publication or submission. See our guide on AI and Creativity for the workflow principles that protect your professional voice while using AI tools.
Guardrail 3: Data Privacy in Every Prompt
The data you include in AI tool prompts may be processed, stored, and in some cases used to train future model versions — depending on the specific tool’s data processing terms. Never include client names and identifying information, confidential business data, personally identifiable information, legally sensitive content, or proprietary information in AI tool prompts without verifying the tool’s specific data handling and retention policies.
This is particularly important for meeting transcription tools — which capture everything said in a meeting, including sensitive business discussions. See our guide on the AI Meeting Copilot Policy for the governance framework that meeting AI deployment requires, and our AI and Data Privacy guide for the broader data handling principles that apply to all AI tools.
Guardrail 4: Maintain a Human Review Step for High-Stakes Output
For any AI-generated output that will be used to make a consequential decision, presented to a client or senior stakeholder, published publicly, or submitted to a regulatory body — maintain a mandatory human review step. The Human-in-the-Loop principle is as important for productivity tools as it is for enterprise AI systems: AI accelerates the work, but human professional judgment validates it before it has impact in the world.
Guardrail 5: Understand Your Tool’s Limitations for Your Specific Use Case
Every AI productivity tool has specific failure modes — domains where it performs poorly, input types it handles inconsistently, and contexts where its outputs are systematically less reliable. The most dangerous AI tool user is the one who does not know where their tool fails — and who therefore cannot apply appropriate skepticism and verification to the outputs most likely to be wrong. Read the documentation, experiment deliberately in low-stakes contexts, and develop an accurate mental model of each tool’s limitations before relying on it for high-stakes professional output.
Guardrail 6: Manage Shadow AI Within Your Team
If you manage a team, the AI tools your team members are using — officially sanctioned or not — create data privacy, quality, and liability risks that require governance. Implement a clear AI Acceptable Use Policy that specifies which tools are approved, what data can be processed through them, and what minimum quality and verification standards apply to AI-assisted work. The absence of clear policy does not prevent AI tool use — it just makes it ungoverned.
🏁 Conclusion: The Compounding Productivity Advantage
The professionals who are most effectively using AI productivity tools in 2026 share a consistent characteristic: they invested time early in learning their tools deeply rather than using them superficially. They understand which tasks each tool handles best, which tasks it handles poorly, how to structure prompts that consistently produce high-quality outputs, and how to integrate tools into workflows that minimize switching friction.
This investment compounds. The professional who spent twenty hours in early 2024 learning to use Claude, Perplexity, and GitHub Copilot effectively has been reaping productivity returns on that investment for two years — and has developed an intuition for AI tool use that late adopters cannot immediately replicate. The window for establishing that early-mover advantage has not closed — but it is narrowing as AI tool proficiency becomes a baseline expectation rather than a differentiator in most professional contexts. The time to invest is now.
📌 Key Takeaways
| ✅ | Takeaway |
|---|---|
| ✅ | Knowledge workers actively integrating AI tools report 20–40% productivity improvements on core work tasks — not from replacing human work but from eliminating low-value groundwork. |
| ✅ | AI tool proficiency is a compounding skill — professionals who have used tools for 12+ months report significantly higher gains than recent adopters. |
| ✅ | Claude leads for complex long-form writing and analysis; ChatGPT leads for versatility and research-backed content with browsing; Perplexity leads for sourced real-time research. |
| ✅ | Meeting AI tools recover 4–6 hours per week for high-meeting-volume professionals — often the single largest absolute time saving in the AI productivity stack. |
| ✅ | GitHub Copilot delivers 55% task completion speed improvement for developers — the most measured and independently corroborated productivity improvement in any AI tool category. |
| ✅ | Never include client names, confidential data, or personal information in AI tool prompts without verifying the tool’s specific data handling and retention policies. |
| ✅ | Every factual claim, statistic, and citation in AI-generated work must be independently verified before publication or presentation — hallucination risk is real across all tools and models. |
| ✅ | Build a deliberate, complementary AI tool stack tailored to your specific role’s highest-time-cost work categories — tool fragmentation is itself a productivity tax. |
🔗 Related Articles
- 📖 The 10 Best AI Productivity Tools for Professionals in 2026
- 📖 Claude vs ChatGPT vs Gemini: Which AI Assistant Wins for Business in 2026?
- 📖 AI Meeting Copilot Policy: Consent, Storage, and Guardrails
- 📖 AI for Coding and Software Development: Faster Code, Fewer Bugs
- 📖 Shadow AI: How to Manage Unapproved Tool Usage Without Killing Innovation
❓ Frequently Asked Questions: Top AI Tools That Boost Productivity
1. Which single AI tool delivers the highest productivity return for a non-technical professional?
For most non-technical knowledge workers, Claude or ChatGPT delivers the highest return as a starting tool — because writing, research, and analytical thinking are the highest-time-cost activities across almost all professional roles, and both tools dramatically compress those activities. After establishing proficiency with one LLM, add a meeting intelligence tool (Otter.ai or Microsoft Copilot for Teams) as the second investment — meeting documentation is typically the next highest time-cost category for most professionals.
2. Are free tiers of AI productivity tools sufficient for professional use?
For occasional use and initial exploration, yes. For consistent professional use where AI is integrated into daily workflows, premium tiers typically deliver significantly better results — higher context windows, faster generation, fewer usage limits, better models, and features specifically designed for professional workflows. The productivity return from premium tiers typically exceeds their cost by a substantial margin for professionals using AI tools more than two to three hours per week.
3. How do I prevent AI tools from affecting my professional voice over time?
Use AI for generation and first drafts — never for finished work. Always apply substantial editing, refinement, and your own analytical judgment before any AI-assisted output represents your professional work product. Regularly write without AI assistance to maintain and develop your core writing skills. Review our AI and Creativity guide for the workflow framework that protects distinctive professional voice while maximizing AI productivity benefits.
4. What is the biggest mistake professionals make when adopting AI productivity tools?
The most common mistake is surface-level adoption — using AI tools for simple tasks that barely scratch the surface of their capability, achieving minimal productivity gains, and concluding that AI tools are overhyped. The highest productivity gains require learning to use tools deeply — understanding which prompting approaches consistently produce high-quality output, which tasks each tool handles best, and how to build workflows that connect tool outputs to subsequent work steps. Investment in learning the tools is the prerequisite for meaningful productivity returns.
5. How should I handle a situation where my organization has not approved the AI tools I want to use?
Raise the question proactively with your IT or security team rather than using unapproved tools without authorization — which creates Shadow AI risks for both you and your organization. Prepare a clear business case for the tools you want to use, including their data handling terms, security certifications, and the specific productivity workflows you intend to implement. Most organizations are developing AI tool approval processes — engaging constructively with that process produces better outcomes than circumventing it.
6. Do AI productivity tools work effectively in languages other than English?
Yes — but with meaningful variation by tool and language. Claude, ChatGPT, and Gemini all support dozens of languages, with strongest performance in high-resource languages (Spanish, French, German, Portuguese, Japanese, Korean, Chinese) and weaker performance in lower-resource languages with less training data representation. Meeting transcription tools vary significantly in multilingual capability — verify specific language support before deploying in non-English meeting environments. For specialized professional domains in non-English contexts, consider Domain-Specific Language Models that have been specifically trained on the target language and domain.





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