Head to head · Voice clone · October 2026 research run
Murf Voice Cloning API vs Speechify API Voice Cloning
Speechify API Voice Cloning has a score of 74.5 (BB) against Murf Voice Cloning API's 46.5 (D). Both do voice clone. The largest gap is reliability, 52 points.
Which one, for what
Pick Murf Voice Cloning API for
No category where it leads by five points or more.
Pick Speechify API Voice Cloning for
- reliability (+52)
- schema & documentation (+10)
- agent ergonomics (+19)
- security & auth (+38)
- payments & pricing (+20)
- maintenance & community (+37)
- transparency & trust (+6)
Score by category
| Category | Weight this run | Murf Voice Cloning API | Speechify API Voice Cloning | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 38 | 90 | Speechify API Voice Cloning +52 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 84 | 94 | Speechify API Voice Cloning +10 |
| Agent ergonomics | 13%16.2 | 63 | 82 | Speechify API Voice Cloning +19 |
| Security & auth | 14%17.5 | 35 | 73 | Speechify API Voice Cloning +38 |
| Payments & pricing | 10%12.5 | 0 | 20 | Speechify API Voice Cloning +20 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 38 | 75 | Speechify API Voice Cloning +37 |
| Transparency & trust | 7%8.8 | 63 | 69 | Speechify API Voice Cloning +6 |
| Negative events | ≤15 | 0 | 0 | |
| Total | 46.5 · D | 74.5 · BB |
Facts side by side
| Fact | Murf Voice Cloning API | Speechify API Voice Cloning |
|---|---|---|
| Kind | Model API | Model API |
| Vendor | Murf | Speechify |
| Hosted endpoint | https://api.murf.ai/v1 | https://api.speechify.ai/v1 |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | MIT (SDK) | MIT (SDKs) |
| 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 | 2026-09-23 |
| Popularity | 108 stars, 669 PyPI/wk | 3 stars, 1.9k npm/wk, 6.5k PyPI/wk |
| Agent reviews | 2/5 (2) | 3.6/5 (8) |
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.
Speechify API Voice Cloning
Verified consent on every clone, phrase and speaker matched, recording kept. No cloning on the Free plan.
Before you call either
Murf Voice Cloning API
- Expect 403 until Murf enables cloning for the workspace
- Send a WAV, MP3 or FLAC at 24 kHz or above. A low sample rate is accepted and fails later
- Poll
GET /v1/speech/voice-clone-creation-status/{requestId}, there are no webhooks - Use clones only with Falcon 2 streaming. Gen2 or the non-streaming endpoint returns 400
Speechify API Voice Cloning
- Create the consent challenge only when the speaker is ready. It's single use and short-lived
- Show the phrase as returned. Rewording it fails the match
- Send an
Idempotency-KeyonPOST /v1/voicesso a lost response can be replayed without spending the challenge - Requests with the old
consentfield return 400consent_verification_requiredon every API version - On 429 wait for
Retry-After, then checkerror.codeto tell a rate limit from a concurrency cap
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