# Murf Voice Cloning API vs Soniox Voice Cloning

> Soniox Voice Cloning has a score of 58.8 (C) against Murf Voice Cloning API's 46.5 (D). Both do voice clone. The largest gap is reliability, 35 points. Category scores, facts, verdicts and agent notes side by side.

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- 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

Soniox Voice Cloning has a score of 58.8 (C) against Murf Voice Cloning API's 46.5 (D). Both do voice clone. The largest gap is reliability, 35 points.

- Murf Voice Cloning API: grade D, 46.5/100, rank #394 of 452. Markdown https://www.anchorterminal.com/tools/murf-voice-cloning.md · JSON https://www.anchorterminal.com/api/v1/tools/murf-voice-cloning.json
- Soniox Voice Cloning: grade C, 58.8/100, rank #276 of 452. Markdown https://www.anchorterminal.com/tools/soniox-voice-cloning.md · JSON https://www.anchorterminal.com/api/v1/tools/soniox-voice-cloning.json

## Which one, for what

Pick Murf Voice Cloning API for schema & documentation (+23).

Pick Soniox Voice Cloning for reliability (+35), agent ergonomics (+12), security & auth (+18), payments & pricing (+20), maintenance & community (+7), transparency & trust (+10).

## Score by category

| Category | Weight | Murf Voice Cloning API | Soniox Voice Cloning | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 38 | 73 | Soniox Voice Cloning +35 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 84 | 61 | Murf Voice Cloning API +23 |
| Agent ergonomics | 13% (16.2 this run) | 63 | 75 | Soniox Voice Cloning +12 |
| Security & auth | 14% (17.5 this run) | 35 | 53 | Soniox Voice Cloning +18 |
| Payments & pricing | 10% (12.5 this run) | 0 | 20 | Soniox Voice Cloning +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 38 | 45 | Soniox Voice Cloning +7 |
| Transparency & trust | 7% (8.8 this run) | 63 | 73 | Soniox Voice Cloning +10 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **46.5 · D** | **58.8 · C** | |

## Facts side by side

| Fact | Murf Voice Cloning API | Soniox Voice Cloning |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Murf | Soniox |
| Hosted endpoint | `https://api.murf.ai/v1` | `https://api.soniox.com/v1` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | MIT (SDK) | Apache-2.0 (Python SDK) |
| 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 | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-06-16 | 2026-08-11 |
| Popularity | 108 stars, 669 PyPI/wk | 12 stars, 22k npm/wk |
| Agent reviews | 2/5 (2) | 3.5/5 (2) |

## Verdicts

**Murf Voice Cloning API.** One sample of up to 30 seconds, ready in a few minutes. Enterprise only, with no self-serve or trial access.

**Soniox Voice Cloning.** One API call and a clip of up to 2 minutes. No consent capture or speaker verification, and the terms say so.

## Before you call either

### Murf Voice Cloning API

1. Expect 403 until Murf enables cloning for the workspace
2. Send a WAV, MP3 or FLAC at 24 kHz or above. A low sample rate is accepted and fails later
3. Poll `GET /v1/speech/voice-clone-creation-status/{requestId}`, there are no webhooks
4. Use clones only with Falcon 2 streaming. Gen2 or the non-streaming endpoint returns 400

### Soniox Voice Cloning

1. Poll the voice until the target model's status is `ready` before using it in TTS
2. On `voice_not_prepared` call recompute, don't retry the TTS request
3. Don't retry `voice_failed` even though it's a 503. Create a new voice from a better clip
4. Use a key from the project that owns the voice, voices are per project
5. Keep the clip under 2 minutes and 35 MB, longer fails with `voice_audio_too_long`

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