Compare AI tools

	GitHub Copilot B	Cursor S	OpenAI Voice / Realtime S	Grok A
Tagline	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	VS Code fork that made AI coding actually work.	ChatGPT's voice + the Realtime API for developers.	xAI's chatbot. Real-time X/Twitter data + fewer refusals.
Category	coding	coding	voice	chat
Pricing	Free (limited) + $10/mo Pro + $19/mo Business	Free + $20/mo Pro + $40/mo Business	Voice included with ChatGPT Plus; Realtime API by usage	Free + $30/mo SuperGrok + included with X Premium
Best for	Teams with GitHub already. Devs who don't want to change IDEs.	Developers. Non-developers who want to ship working code.	Voice chat users, developers building voice agents on OpenAI.	Breaking news, live event tracking, users already on X.
Strengths	Great enterprise story Works in your existing IDE Chat + autocomplete	Tab completion feels like mind-reading Composer for multi-file edits Runs Claude, GPT, Gemini — you pick	Advanced Voice Mode feels genuinely conversational Realtime API enables true two-way voice apps Built into ChatGPT	Live access to X posts for real-time events Less restrictive on edgy questions Fast inference on Grok-3 and up
Weaknesses	Less agentic than Cursor/Claude Code Model quality varies	Can feel overwhelming for non-coders Expensive at scale	Pricey for production apps Less voice variety than ElevenLabs Platform lock-in	Writing quality trails Claude/ChatGPT Political bias debates Ecosystem is just X
Kai's verdict	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier for coding. If you write code of any kind, this pays back the $20 in a day.	S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.	A-tier for real-time. B-tier for everything else. Worth checking when news breaks.
Link	Open →	Open →	Open →	Open →