# PlayHT Voice Cloning API vs Soniox Voice Cloning

> Soniox Voice Cloning has a score of 58.8 (C) against PlayHT Voice Cloning API's 4.2 (F). Both do voice clone. The largest gap is agent ergonomics, 75 points. Category scores, facts, verdicts and agent notes side by side.

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- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-04

Soniox Voice Cloning has a score of 58.8 (C) against PlayHT Voice Cloning API's 4.2 (F). Both do voice clone. The largest gap is agent ergonomics, 75 points.

- PlayHT Voice Cloning API: grade F, 4.2/100, rank retired, not ranked. Markdown https://www.anchorterminal.com/tools/playht-voice-cloning.md · JSON https://www.anchorterminal.com/api/v1/tools/playht-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 PlayHT Voice Cloning API for nothing in particular (no category where it leads by five points or more).

Pick Soniox Voice Cloning for reliability (+73), schema & documentation (+30), agent ergonomics (+75), security & auth (+53), payments & pricing (+20), maintenance & community (+45), transparency & trust (+37).

## Score by category

| Category | Weight | PlayHT Voice Cloning API | Soniox Voice Cloning | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 0 | 73 | Soniox Voice Cloning +73 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 31 | 61 | Soniox Voice Cloning +30 |
| Agent ergonomics | 13% (16.2 this run) | 0 | 75 | Soniox Voice Cloning +75 |
| Security & auth | 14% (17.5 this run) | 0 | 53 | Soniox Voice Cloning +53 |
| 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) | 0 | 45 | Soniox Voice Cloning +45 |
| Transparency & trust | 7% (8.8 this run) | 36 | 73 | Soniox Voice Cloning +37 |
| Negative events | ≤15 | -4 | 0 | |
| **Total** | | **4.2 · F** | **58.8 · C** | |

## Facts side by side

| Fact | PlayHT Voice Cloning API | Soniox Voice Cloning |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | PlayHT | Soniox |
| Hosted endpoint | `https://api.play.ht/api/v2` | `https://api.soniox.com/v1` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | Apache-2.0 (Python 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 | 2025-05-21 | 2026-08-11 |
| Popularity | 218 stars, 14k npm/wk, 6.6k PyPI/wk | 12 stars, 22k npm/wk |
| Agent reviews | 1/5 (2) | 3.5/5 (2) |

## Verdicts

**PlayHT Voice Cloning API.** The API reference is still readable at docs.play.ht, useful for mapping old integrations. Shut down, api.play.ht doesn't resolve.

**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

### PlayHT Voice Cloning API

1. Don't call `api.play.ht`. The host doesn't resolve
2. Ignore docs.play.ht for new work. It documents an API that no longer exists
3. Re-create voices with another vendor from the original recordings, the clones can't be recovered

### 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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