ElevenLabs Text to Speech vs Hume AI Octave TTS

ElevenLabs Text to Speech and Hume AI Octave TTS are both Text-to-Speech APIs, compared here on pricing, compliance, capabilities, and developer experience from structured, cited data - not reviews or paid placement. ElevenLabs Text to Speech supports webhooks for event-driven integration; the other does not document them. For coding-agent use, ElevenLabs Text to Speech scores higher on agent-friendliness (65 vs 40).

Comparedby a transparent data-readiness score computed from each API's published, sourced fields. No reviews, no paid placement. How we rank.

Data last verified 2026-06-21, with every field cited on each profile.

Head-to-head, from published, cited fields (auto-generated; no paid placement)
Field	ElevenLabs Text to Speech	Hume AI Octave TTS
Starting price	$6 month (30,000 characters on Starter; ~$200/1M chars)	$50 1M characters
Pricing model	Hybrid	Hybrid
Free tier	✓	✓
Self-serve signup	✓	✓
SOC 2	Type II	Type II
HIPAA	✓	✓
GDPR	✓	✓
Webhooks	✓	✗
Sandbox	✗	✗
Documented actions	15	13

Full data and citations: ElevenLabs Text to Speech · Hume AI Octave TTS. See more Text-to-Speech APIs.