Compare AI tools

	GitHub Copilot B	Grammarly A	Sudowrite S	Claude Code S
Tagline	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Grammar check + tone + AI drafting, everywhere you type.	AI writing tool built specifically for fiction writers.	Anthropic's CLI agent. Opus-powered, operates on your repo directly.
Category	coding	writing	writing	coding
Pricing	Free (limited) + $10/mo Pro + $19/mo Business	Free + $12-$15/mo Premium + team plans	$19-$59/mo	Part of Claude Pro/Max/Team plans
Best for	Teams with GitHub already. Devs who don't want to change IDEs.	Non-native English writers, business email, anyone who types a lot.	Novelists, screenwriters, fiction short-form writers.	Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths	Great enterprise story Works in your existing IDE Chat + autocomplete	Works in every browser/app Now has generative AI (GrammarlyGO) Tone detection + suggestions	Brainstorm, expand, rewrite modes designed for fiction Story Bible for character + plot tracking Understands voice + tone better than generic chatbots	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks
Weaknesses	Less agentic than Cursor/Claude Code Model quality varies	Can feel naggy Premium features gate basics Privacy concerns (reads your writing)	Pricey for casual use Fiction-only focus — not for business writing	Terminal-based — learning curve Can't be used without Claude subscription
Kai's verdict	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.	S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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