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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
Stable Audio
A
Claude Code
S
Sora
A
TaglineOpen weights + strong photorealism. The open-source answer.Stability AI's open audio model. Loops + SFX + background.Anthropic's CLI agent. Opus-powered, operates on your repo directly.OpenAI's video model. Long clips, cinematic quality.
CategoryImageAudioCodingVideo
PricingAPI + open weights (Schnell is Apache 2.0)Free + $12/mo Pro + enterprisePart of Claude Pro/Max/Team plansIncluded with ChatGPT Plus/Pro
Best forDevelopers + power users who want control and privacy.Game developers, podcasters needing SFX, video creators needing background music.Developers who want an agent, not autocomplete. Large refactors, tests, docs.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • Harder to use than hosted tools
  • Needs infra
  • Not for full songs with vocals
  • Shorter generation limits
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictA-tier. S-tier if you self-host. The reason open-source image gen matters.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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