Humanness Index™ · Provider
MiniMax is the Shanghai AI lab behind the MiniMax speech line, served through its hosted t2a_v2 API with HD and Turbo tiers.
Standings as of Jun 13, 2026, 00:15 UTC
| Rank | Model | Humanness | Latency | Languages | Price / 1M chars |
|---|---|---|---|---|---|
| #8 | Speech 2.5 | 71 | 325 ms | 40 | $60 |
| #10 | Speech 2 HD | 64 | 357 ms | 32 | $100 |
| #12 | Speech 2 Turbo | 63 | 315 ms | 32 | $60 |
MiniMax is the Shanghai AI lab behind the MiniMax speech line, served through its hosted t2a_v2 API with HD and Turbo tiers. It is widely regarded as the strongest text to speech provider for Chinese, and its recent generations brought English accuracy and rhythm up alongside that strength.
Sources: minimax.io
The speech line moved fast through 2025, with the Speech-02 series arriving in April and Speech 2.5 following in August. The current generation supports more than 40 languages and clones a voice from roughly six to ten seconds of reference audio using a learnable speaker encoder that needs no transcript. The clips on this Index were generated with the Speech 2.5 generation, turbo tier.
Sources: minimax.io, platform.minimax.io
The benchmark is open source. Suggest a model, read the methodology, or ask us to put your voice in the arena.
