Compare AI tools

	Windsurf A	GitHub Copilot B	Fathom S	OpenAI Voice / Realtime S
Tagline	Codeium's agentic IDE. Cascade agent + strong free tier.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Meeting notes, free forever for individuals.	ChatGPT's voice + the Realtime API for developers.
Category	coding	coding	meeting	voice
Pricing	Free + $15/mo Pro	Free (limited) + $10/mo Pro + $19/mo Business	Free for individuals + $15-$29/user/mo teams	Voice included with ChatGPT Plus; Realtime API by usage
Best for	Developers who want Cursor-like power for less money.	Teams with GitHub already. Devs who don't want to change IDEs.	Solo operators, freelancers, small teams on a budget.	Voice chat users, developers building voice agents on OpenAI.
Strengths	Cheaper than Cursor Cascade agent for multi-file tasks Solid free tier	Great enterprise story Works in your existing IDE Chat + autocomplete	Unlimited free tier for solo use Strong summaries + action items Works in Zoom, Meet, Teams	Advanced Voice Mode feels genuinely conversational Realtime API enables true two-way voice apps Built into ChatGPT
Weaknesses	Smaller community Model selection more limited	Less agentic than Cursor/Claude Code Model quality varies	Bot-joining model Team features gated	Pricey for production apps Less voice variety than ElevenLabs Platform lock-in
Kai's verdict	A-tier. Close second to Cursor. If $5/mo matters, start here.	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier for solo + free. The best free option, hands down.	S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.
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