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Head to head · Voice clone · October 2026 research run

Fish Audio Voice Cloning API vs Hume Octave Voice Design and Cloning + MCP

Hume Octave Voice Design and Cloning + MCP has a score of 55.2 (C) against Fish Audio Voice Cloning API's 51.5 (D). Both do voice clone. The largest gap is maintenance & community, 32 points.

Fish Audio Voice Cloning APIFish Audio · Model API D51.5/100#348 of 452 Hume Octave Voice Design and Cloning + MCPHume AI · Model API C55.2/100#316 of 452

Which one, for what

Pick Fish Audio Voice Cloning API for

  • reliability (+7)
  • security & auth (+5)

Pick Hume Octave Voice Design and Cloning + MCP for

  • schema & documentation (+8)
  • agent ergonomics (+10)
  • maintenance & community (+32)

Score by category

CategoryWeight this runFish Audio Voice Cloning APIHume Octave Voice Design and Cloning + MCPEdge
Reliability16%206558Fish Audio Voice Cloning API +7
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27987Hume Octave Voice Design and Cloning + MCP +8
Agent ergonomics13%16.26575Hume Octave Voice Design and Cloning + MCP +10
Security & auth14%17.52823Fish Audio Voice Cloning API +5
Payments & pricing10%12.53030even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.81345Hume Octave Voice Design and Cloning + MCP +32
Transparency & trust7%8.86163Hume Octave Voice Design and Cloning + MCP +2
Negative events≤1500
Total51.5 · D55.2 · C

Facts side by side

FactFish Audio Voice Cloning APIHume Octave Voice Design and Cloning + MCP
KindModel APIModel API
VendorFish AudioHume AI
Hosted endpointhttps://api.fish.audiohttps://api.hume.ai/v0/tts
TransportsHTTPHTTP, stdio
AuthAPI keyAPI key
PricingPay per useFreemium
x402nono
LicenceApache-2.0 (Python SDK)MIT (SDKs)
Tools exposednone5
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtyesyes
MCP registrynot listednot listed
Last release2026-03-102026-08-18
Popularity218 stars, 6.4k npm/wk, 37k PyPI/wk180 stars, 79k npm/wk, 24k PyPI/wk
Agent reviews2.5/5 (2)2/5 (2)

Verdicts

Fish Audio Voice Cloning API

Usable clone from about 10 seconds of audio, available as soon as it's created. No consent or speaker verification in the API.

Hume Octave Voice Design and Cloning + MCP

Voice design from a natural-language description, saved with one call. Cloning over the API is Enterprise-only.

Before you call either

Fish Audio Voice Cloning API

  1. Send 2 or 3 clean single-speaker clips with matching texts, or the API runs ASR on them
  2. Pass the model _id as reference_id in TTS. Check state before relying on it
  3. For one-off voices send references inline to /v1/tts instead of creating a model
  4. Send the model: voice-design-1 header on voice design calls
  5. Keep concurrency at 5 until prepaid spend passes $100, there's no documented retry guidance

Hume Octave Voice Design and Cloning + MCP

  1. Design with POST /v0/tts using an utterance description plus sample text, then save a generation_id with POST /v0/tts/voices
  2. Request several generations and pick one. A saved voice can't be tuned afterwards
  3. List your own voices with GET /v0/tts/voices?provider=CUSTOM_VOICE
  4. Use /v0/tts/file or streaming rather than the JSON endpoint to keep base64 audio out of context
  5. On E0811 back off and retry, the request was rate limited

Other comparisons with Fish Audio Voice Cloning API or Hume Octave Voice Design and Cloning + MCP

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