Compare AI tools

	Claude Code S	Gemini A	Devin A	Perplexity S
Tagline	Anthropic's CLI agent. Opus-powered, operates on your repo directly.	Google's answer. Best integrated with Workspace + free for a lot.	Cognition Labs' autonomous coding engineer.	AI search done right. Cited answers, not chat theater.
Category	coding	chat	agents	research
Pricing	Part of Claude Pro/Max/Team plans	Free + $20/mo Advanced (bundled with 2TB Drive)	$500/mo	Free + $20/mo Pro
Best for	Developers who want an agent, not autocomplete. Large refactors, tests, docs.	Anyone already on Google, research tasks, summarizing long documents.	Engineering teams offloading tickets. Ops/platform work.	Replacing Google for any question where you want a cited answer in seconds.
Strengths	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks	Native Google Workspace integration Very long context (1M+) Deep Research feature Free tier is generous	Works like an engineer — takes Slack tasks, opens PRs Handles multi-hour engineering work Reports back with what it did	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context
Weaknesses	Terminal-based — learning curve Can't be used without Claude subscription	Writing quality trails Claude Over-refusals on edge content UI is cluttered	Expensive Best for well-scoped tasks Not for solo hobbyists	Not a general chatbot Answers can be shallow on complex topics
Kai's verdict	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.	A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.	A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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