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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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S
Udio
A
DALL-E 3
B
Devin
A
TaglineRun any open-source AI model with an API call.Suno's main rival. Often better on instrumental nuance.OpenAI's image model. Built into ChatGPT Plus.Cognition Labs' autonomous coding engineer.
CategoryDev PlatformAudioImageAgents
PricingPay per second of computeFree + $10-$30/moIncluded with ChatGPT Plus $20/mo$500/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Musicians comparing AI outputs. Anyone who didn't click with Suno.ChatGPT Plus users who want images without paying extra.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. Genuinely different vibe from Suno — worth trying both for a month.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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