Hume AI · read on October 27, 2026
Hume AI Octave 2
Hume AI Octave 2 is a TTS (text-to-speech) model from Hume AI. No benchmark in this index times it over 30 days, so it has no speed tier. It ranks 62 of 86 in the full ranking.
- Speed tier
- No tier
- P95 / median
- Not timed / Not timed
- Listener Elo
- 1,056
- Price per 1M chars
- $87.5 to $100
Where it ranks
Full ranking: 62 of 86. Use case ranks, by speed:
The tier and the ranks are computed by this site from the benchmarks' figures, not declared by Hume AI.
Measurements and sources
Speko
| Naturalness score | 1,377 |
| Latency, board chart | 435 ms |
| Latency, model page sweep (median) | 448 ms |
| Numbers and dates pronunciation | 0.24 |
Artificial Analysis
| Listener Elo | 1,056 |
| Listener Elo, 95% interval | 12 |
| Listener Elo, customer service | 1,068 |
Cekura
| Time to first audio, streamed text | 573 ms |
| Time to first audio, text sent whole | 582 ms |
| Reading accuracy | 87.4% |
| Estimated naturalness (1 to 5) | 4.38 |
Details
| Provider | Hume AI |
| Access | Proprietary |
| Streaming | A benchmark measures its time to first audio |
| Languages tested | Spanish, German, French, Japanese |
| Measured by | Artificial Analysis, Cekura, Speko |
| Official site | www.hume.ai |
Not collected
Nothing below is estimated. Each line says which measure is missing and why.
- Speed (Coval median time to first audio): not measured by Coval (reading of 2026-10-27, 30-day window)
- Speed (Coval P95 time to first audio): not measured by Coval (reading of 2026-10-27, 30-day window)
Sources
- https://artificialanalysis.ai/text-to-speech/leaderboard/provider-voice (read on October 27, 2026)
- https://benchmarks.cekura.ai/text-to-speech (read on October 27, 2026)
- https://benchmarks.speko.ai/tts/ (read on October 27, 2026)
Values are copied from these pages on the date shown. The match between this model and its benchmark entries is inferred, because a source writes the name differently: Cekura: “Hume Octave 2”; Speko: “Hume octave-2”. See the methodology.
Compare it with the reference model: Gradium TTS vs Hume AI Octave 2.