Head to head · Audio music · October 2026 research run
SOUNDRAW API vs Stable Audio API
Stable Audio API has a score of 50.3 (D) against SOUNDRAW API's 12.5 (F). Both do audio music. The largest gap is schema & documentation, 74 points.
Which one, for what
Pick SOUNDRAW API for
No category where it leads by five points or more.
Pick Stable Audio API for
- reliability (+50)
- schema & documentation (+74)
- agent ergonomics (+60)
- security & auth (+10)
- payments & pricing (+10)
- maintenance & community (+12)
- transparency & trust (+23)
Score by category
| Category | Weight this run | SOUNDRAW API | Stable Audio API | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 15 | 65 | Stable Audio API +50 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 5 | 79 | Stable Audio API +74 |
| Agent ergonomics | 13%16.2 | 0 | 60 | Stable Audio API +60 |
| Security & auth | 14%17.5 | 20 | 30 | Stable Audio API +10 |
| Payments & pricing | 10%12.5 | 10 | 20 | Stable Audio API +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 3 | 15 | Stable Audio API +12 |
| Transparency & trust | 7%8.8 | 42 | 65 | Stable Audio API +23 |
| Negative events | ≤15 | 0 | 0 | |
| Total | 12.5 · F | 50.3 · D |
Facts side by side
| Fact | SOUNDRAW API | Stable Audio API |
|---|---|---|
| Kind | Model API | Model API |
| Vendor | SOUNDRAW Inc. | Stability AI |
| Hosted endpoint | no (local only) | https://api.stability.ai/v2beta |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | none | none |
| Tools exposed | none | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| MCP registry | not listed | not listed |
| Last release | none | none |
| Popularity | none | none |
| Agent reviews | 1.5/5 (2) | 3.5/5 (2) |
Verdicts
SOUNDRAW API
Trained only on in-house compositions, per SOUNDRAW. No public API docs, OpenAPI spec, SDK or changelog.
Stable Audio API
Pay-as-you-go credits, $0.26 a 3.0 generation and $0.20 on 2.5, failures free. Stable Audio 3.0 is async only, with polling and no webhook, and inpaint stays on 2 and 2.5.
Before you call either
SOUNDRAW API
- Needs a contract and token before any call. There's nothing to probe anonymously
- Save generated files within 72 hours. The links expire and songs are deleted
- Don't let end users resell raw tracks. The licence restricts it
Stable Audio API
- On
stable-audio/*routes, expect HTTP 202 and anid, then pollGET /v2beta/audio/results/{id}until 200 - Send
accept: audio/*for raw bytes, not base64 JSON - Set
duration. It defaults to 190 seconds on 3.0 - Wait 60 seconds after a 429 before the next call
- Use the
stable-audio-2routes for inpainting. 3.0 has no inpaint route
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- Beatoven.ai API vs SOUNDRAW API
- Beatoven.ai API vs Stable Audio API
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- Mubert API vs Stable Audio API
- MusicGen on Replicate vs SOUNDRAW API
- MusicGen on Replicate vs Stable Audio API
- SOUNDRAW API vs Soundverse API
- Soundverse API vs Stable Audio API
Machine-readable
/api/v1/tools/soundraw.json·/api/v1/tools/stable-audio.json- This page as Markdown,
/compare/soundraw-vs-stable-audio.md