Compare AI tools
Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
Pick tools (4 selected)
Dev Platform
Coding
Image
Productivity
Writing
Marketing
GitHub Copilot B | Claude Code S | Stripe Link A | OpenAI Voice / Realtime S | |
|---|---|---|---|---|
| Tagline | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Anthropic's CLI agent. Opus-powered, operates on your repo directly. | A digital wallet that lets AI agents spend on your behalf — without ever seeing your actual card number. | ChatGPT's voice + the Realtime API for developers. |
| Category | Coding | Coding | Agents | Voice |
| Pricing | Free (limited) + $10/mo Pro + $19/mo Business | Part of Claude Pro/Max/Team plans | Free for consumers; standard Stripe per-transaction fees for merchants | Voice included with ChatGPT Plus; Realtime API by usage |
| 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. | Anyone running autonomous AI agents (shopping bots, booking assistants, personal AI) who wants delegated payment capability without handing over raw card data. | Voice chat users, developers building voice agents on OpenAI. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| 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. | Stripe Link is the most credible first move toward a real agentic payment layer — the one-time-use card model is genuinely clever, and the existing merchant network gives it a head start no startup wallet can match. But the 'approve every transaction' UX will get old fast, and the hard part (autonomous spending with guardrails) is still on the roadmap. (Verdict pending Phi's full review.) | S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement. |
| Link | Open → | Open → | Open → | Open → |