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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Flux (Black Forest Labs)
A
OpenAI Voice / Realtime
S
GitHub Copilot
B
Google Veo
A
TaglineOpen weights + strong photorealism. The open-source answer.ChatGPT's voice + the Realtime API for developers.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Google's video model. Baked into Gemini + YouTube Shorts.
CategoryImageVoiceCodingVideo
PricingAPI + open weights (Schnell is Apache 2.0)Voice included with ChatGPT Plus; Realtime API by usageFree (limited) + $10/mo Pro + $19/mo BusinessIncluded with Gemini Advanced $20/mo + YouTube creator tools
Best forDevelopers + power users who want control and privacy.Voice chat users, developers building voice agents on OpenAI.Teams with GitHub already. Devs who don't want to change IDEs.Gemini Advanced users, YouTube Shorts creators.
Strengths
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
Weaknesses
  • Harder to use than hosted tools
  • Needs infra
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
Kai's verdictA-tier. S-tier if you self-host. The reason open-source image gen matters.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier if you already pay Gemini. B-tier standalone.
LinkOpen →Open →Open →Open →