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AI assistants

ChatGPT vs Claude vs Gemini vs Perplexity vs Manus: which AI assistant should you choose?

Compare major AI assistants for writing, web research, long documents, automation, productivity and integrations.

Last updated: May 13, 2026

Some links on comparison pages may become affiliate links later. This does not change the analysis: tools should be recommended only when they are genuinely useful for the use case.

Selection criteria

main use case
ease of use
quality of output
pricing
integrations
ToolRatingBest forWeb researchWritingAutomationPricing
ChatGPT4.7/5versatile everyday AI workGood when browsing is enabledVery goodGood with projects, GPTs and APIfree and paid plans
Claude4.7/5long writing and document analysisDepends on available featuresExcellentModeratefree and paid plans
Gemini4.5/5Google Workspace usersVery goodGoodGood inside Google toolsfree and paid plans
Perplexity4.6/5web research with sourcesExcellentCorrectLimitedfree and paid plans
Manus4.3/5multi-step autonomous tasksGood for web tasksCorrectVery good for agentic workflowspaid plan
Mistral Le Chat4.3/5a specific practical AI use caseBon avec sourcesBonBon avec agents et outilsfree and paid plans

Tool analysis

ChatGPT

4.7/5

Best for: versatile everyday AI work. This analysis is based on public features and common practical use cases.

Strengths

  • Very versatile
  • Easy to start with
  • Good for writing, planning, explaining and analysis

Limits

  • Can sound generic without context
  • Facts still need verification

Claude

4.7/5

Best for: long writing and document analysis. This analysis is based on public features and common practical use cases.

Strengths

  • Natural writing style
  • Strong with long documents
  • Good for nuanced analysis

Limits

  • Less central for broad integrations
  • Feature availability can vary

Gemini

4.5/5

Best for: Google Workspace users. This analysis is based on public features and common practical use cases.

Strengths

  • Natural fit with Google tools
  • Useful for research and productivity
  • Good multimodal assistant

Limits

  • Less obvious outside the Google ecosystem
  • Some answers need careful framing

Perplexity

4.6/5

Best for: web research with sources. This analysis is based on public features and common practical use cases.

Strengths

  • Source-oriented answers
  • Very useful for research and monitoring
  • Fast for comparing information

Limits

  • Less suited to long branded writing
  • Sources still need checking

Manus

4.3/5

Best for: multi-step autonomous tasks. This analysis is based on public features and common practical use cases.

Strengths

  • Agentic approach
  • Interesting for long multi-step tasks
  • Can execute more than a standard chatbot

Limits

  • Needs more supervision
  • Too advanced for simple writing needs

Mistral Le Chat

4.3/5

Best for: a specific practical AI use case. This analysis is based on public features and common practical use cases.

Strengths

  • Useful for a clear use case
  • Can save time when the workflow is well defined

Limits

  • Needs testing on your own examples
  • May not fit every team or budget

Recommendation by profile

Choose the tool according to the task, not the hype. Start with the assistant that solves your current problem, then switch or combine tools when your workflow becomes clearer.