Compare AI tools

	GitHub Copilot B	Claude Code S	Sudowrite S	Aider A
Tagline	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Anthropic's CLI agent. Opus-powered, operates on your repo directly.	AI writing tool built specifically for fiction writers.	Terminal-based AI pair programmer. Git-aware, model-flexible.
Category	coding	coding	writing	coding
Pricing	Free (limited) + $10/mo Pro + $19/mo Business	Part of Claude Pro/Max/Team plans	$19-$59/mo	Free (open source) + whatever API you use
Best for	Teams with GitHub already. Devs who don't want to change IDEs.	Developers who want an agent, not autocomplete. Large refactors, tests, docs.	Novelists, screenwriters, fiction short-form writers.	Developers who want open-source tooling with full control.
Strengths	Great enterprise story Works in your existing IDE Chat + autocomplete	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks	Brainstorm, expand, rewrite modes designed for fiction Story Bible for character + plot tracking Understands voice + tone better than generic chatbots	Works in any terminal Auto-commits changes with meaningful messages Works with any model (Claude, GPT, local) Minimal learning curve
Weaknesses	Less agentic than Cursor/Claude Code Model quality varies	Terminal-based — learning curve Can't be used without Claude subscription	Pricey for casual use Fiction-only focus — not for business writing	Terminal-only Less agentic than Claude Code Setup on Windows is fiddly
Kai's verdict	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.	S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.	A-tier. The right answer if you want open-source + terminal-native + model-agnostic.
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