# 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. Category scores, facts, verdicts and agent notes side by side. - Canonical: https://www.anchorterminal.com/compare/soundraw-vs-stable-audio - Markdown: https://www.anchorterminal.com/compare/soundraw-vs-stable-audio.md (~1,500 tokens) - Slim: https://www.anchorterminal.com/compare/soundraw-vs-stable-audio.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/soundraw-vs-stable-audio.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - Updated: 2026-10-05 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. - SOUNDRAW API: grade F, 12.5/100, rank #451 of 452. Markdown https://www.anchorterminal.com/tools/soundraw.md · JSON https://www.anchorterminal.com/api/v1/tools/soundraw.json - Stable Audio API: grade D, 50.3/100, rank #362 of 452. Markdown https://www.anchorterminal.com/tools/stable-audio.md · JSON https://www.anchorterminal.com/api/v1/tools/stable-audio.json ## Which one, for what Pick SOUNDRAW API for nothing in particular (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 | SOUNDRAW API | Stable Audio API | Edge | | --- | --- | --- | --- | --- | | Reliability | 16% (20 this run) | 15 | 65 | Stable Audio API +50 | | Performance | 10%, pending | pending | pending | not scored in this run | | Schema & documentation | 13% (16.2 this run) | 5 | 79 | Stable Audio API +74 | | Agent ergonomics | 13% (16.2 this run) | 0 | 60 | Stable Audio API +60 | | Security & auth | 14% (17.5 this run) | 20 | 30 | Stable Audio API +10 | | Payments & pricing | 10% (12.5 this run) | 10 | 20 | Stable Audio API +10 | | Task success | 10%, pending | pending | pending | not scored in this run | | Maintenance & community | 7% (8.8 this run) | 3 | 15 | Stable Audio API +12 | | Transparency & trust | 7% (8.8 this run) | 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 1. Needs a contract and token before any call. There's nothing to probe anonymously 2. Save generated files within 72 hours. The links expire and songs are deleted 3. Don't let end users resell raw tracks. The licence restricts it ### Stable Audio API 1. On `stable-audio/*` routes, expect HTTP 202 and an `id`, then poll `GET /v2beta/audio/results/{id}` until 200 2. Send `accept: audio/*` for raw bytes, not base64 JSON 3. Set `duration`. It defaults to 190 seconds on 3.0 4. Wait 60 seconds after a 429 before the next call 5. Use the `stable-audio-2` routes for inpainting. 3.0 has no inpaint route ## Other comparisons with SOUNDRAW API or Stable Audio API - [Beatoven.ai API vs SOUNDRAW API](https://www.anchorterminal.com/compare/beatoven-vs-soundraw.md) - [Beatoven.ai API vs Stable Audio API](https://www.anchorterminal.com/compare/beatoven-vs-stable-audio.md) - [ElevenLabs Music API vs SOUNDRAW API](https://www.anchorterminal.com/compare/elevenlabs-music-vs-soundraw.md) - [ElevenLabs Music API vs Stable Audio API](https://www.anchorterminal.com/compare/elevenlabs-music-vs-stable-audio.md) - [fal music models vs SOUNDRAW API](https://www.anchorterminal.com/compare/fal-music-vs-soundraw.md) - [fal music models vs Stable Audio API](https://www.anchorterminal.com/compare/fal-music-vs-stable-audio.md) - [Google Lyria vs SOUNDRAW API](https://www.anchorterminal.com/compare/google-lyria-vs-soundraw.md) - [Google Lyria vs Stable Audio API](https://www.anchorterminal.com/compare/google-lyria-vs-stable-audio.md) - [Loudly Music API vs SOUNDRAW API](https://www.anchorterminal.com/compare/loudly-vs-soundraw.md) - [Loudly Music API vs Stable Audio API](https://www.anchorterminal.com/compare/loudly-vs-stable-audio.md) - [Mubert API vs SOUNDRAW API](https://www.anchorterminal.com/compare/mubert-vs-soundraw.md) - [Mubert API vs Stable Audio API](https://www.anchorterminal.com/compare/mubert-vs-stable-audio.md) - [MusicGen on Replicate vs SOUNDRAW API](https://www.anchorterminal.com/compare/replicate-musicgen-vs-soundraw.md) - [MusicGen on Replicate vs Stable Audio API](https://www.anchorterminal.com/compare/replicate-musicgen-vs-stable-audio.md) - [SOUNDRAW API vs Soundverse API](https://www.anchorterminal.com/compare/soundraw-vs-soundverse.md) - [Soundverse API vs Stable Audio API](https://www.anchorterminal.com/compare/soundverse-vs-stable-audio.md)