Hume Octave TTS Review
Expressiveness-first TTS (Octave understands the meaning of the text it speaks); subscription plans gate commercial use, with Octave 2 (preview) adding ~100ms latency and 11 languages for realtime use.
Among the 15 text-to-speech tools we track, Hume Octave TTS has the 4th-fastest time-to-first-byte - a fit for real-time, conversational apps.
From $3/mo
If you sign up through links on this page, vsref may earn a commission; programs exist on both sides of most comparisons, and commissions never change verdicts. How we make money
What we know about Hume Octave TTS
Hume Octave TTS sits in the text-to-speech apis category, where it is expressiveness-first TTS (Octave understands the meaning of the text it speaks); subscription plans gate commercial use, with Octave 2 (preview) adding ~100ms latency and 11 languages for realtime use. We keep this Hume Octave TTS profile grounded in primary sources, each fact dated to when we last confirmed it.
On pricing, Hume Octave TTS starts at $3 per month for its entry tier. That is the sticker rate: real production cost usually runs higher once you add a language model, a voice provider, and telephony minutes.
On capabilities, Hume Octave TTS covers streaming audio output, realtime websocket api, instant voice cloning, emotion / style controls, and word-level timestamps, and does not offer commercial use on free tier. Each of those is verified against Hume Octave TTS's own docs or dashboard, not marketing copy.
Placed against the 15 text-to-speech tools we track, Hume Octave TTS's strongest showing is the 4th-fastest time-to-first-byte, while it trails at 23rd on languages - a spread worth weighing against your own priorities.
In total we track 18 verified facts for Hume Octave TTS today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the Hume Octave TTS fact sheet below.
Reviewed by vsref Editorialfacts verified Jul 20, 2026Methodology →
Hume Octave TTS pricing
Cheapest paid plan $3/mo with 30,000 characters included, verified Jul 20, 2026 (source).
| Monthly volume | $ / 1M chars | $ / audio-min | Monthly bill |
|---|---|---|---|
| 200K chars/moHobby project | Higher plan | Higher plan | Higher plan |
| 2M chars/moProduct feature | Higher plan | Higher plan | Higher plan |
| 20M chars/moAt scale | Higher plan | Higher plan | Higher plan |
Effective rates from published pricing; subscription plans resolve to plan fee plus overage. ~950 characters ≈ 1 audio minute. How we compute costs →
Fact sheet
Every row independently verifiedConsidering a switch? Best Hume Octave TTS alternatives →
STT in this stack
Text-to-speech is half of a voice pipeline: the other half is the speech-to-text that listens. Compare transcription engines on accuracy, streaming latency, and per-minute price: Deepgram, AssemblyAI, GPT-4o Transcribe, or the full speech-to-text comparison →
Voice agents in this stack
The same vendor runs this engine as a full agent platform: see Hume EVI for the end-to-end per-minute cost. Or compare the platforms builders wire Hume Octave TTS into: Pipecat, OpenAI Realtime API, Twilio ConversationRelay, or the full voice-agent comparison →
Distribute it
Most Hume Octave TTS voiceover ends up in short-form video, and publishing that video across TikTok, YouTube, and Instagram is a scheduling problem with real per-channel pricing. Compare the schedulers creators actually run: Buffer, Postiz, Mixpost, or the social media scheduling platforms compared →
Avatar video in this stack
A cloned or bring-your-own Hume Octave TTS voice does not have to stay audio-only: AI avatar video platforms lip-sync it onto a talking avatar for finished video. Compare the platforms: HeyGen, Synthesia, Hedra, or the full avatar-video comparison →