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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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Suno
S
Udio
A
Stable Audio
A
Qwen
A
TaglinePrompt to full song with vocals, instruments, the works.Suno's main rival. Often better on instrumental nuance.Stability AI's open audio model. Loops + SFX + background.Alibaba's open chat model. Multilingual + agentic.
Categoryaudioaudioaudiochat
PricingFree + $10/mo + $30/moFree + $10-$30/moFree + $12/mo Pro + enterpriseFree web + API
Best forJingles, intros, demos, sketches, personal use.Musicians comparing AI outputs. Anyone who didn't click with Suno.Game developers, podcasters needing SFX, video creators needing background music.Vietnamese/Chinese content, SEA multilingual use, developers wanting open-weight tool-use.
Strengths
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Excellent Chinese + Vietnamese + SEA languages
  • Strong at tool-use + agentic workflows
  • Open weights (Qwen2.5, Qwen3)
Weaknesses
  • Copyright gray zone
  • Audio quality behind studio
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Not for full songs with vocals
  • Shorter generation limits
  • English quality behind Claude/GPT
  • Less well-known outside Asia
Kai's verdictS-tier in its category. The first AI music tool I'd actually listen to.A-tier. Genuinely different vibe from Suno — worth trying both for a month.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.A-tier. The best open model for Vietnamese + Chinese. Don't sleep on it if you work in SEA.
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