Voxtral TTS (4B, 2603)

Mistral AI's 4B text-to-speech model, with open weights under a non-commercial licence and a hosted API.

Where it ranks

C
Text to speech
Models · Local · 1,089 on Artificial Analysis Speech Arena: Text to Speech (provider voices)

Vendor: Mistral AI
Family: Voxtral TTS
Released: 26 Mar 2026
Weights: Open: download and run it yourself
License: CC-BY-NC-4.0
Parameters: 4B
GPU memory to run locally: ~10 GB (Derived: about 4B parameters (from the model name) x 2 bytes = ~8 GB of bf16 weights, plus overhead.)
API price: $16 per 1M characters (Artificial Analysis normalised price for Voxtral TTS (USD per 1M characters).)
Access: Free (open weights)
Last verified: 18 Oct 2026

Price from artificialanalysis.ai, 18 Oct 2026.

Benchmark	Result	Entry on the leaderboard	As of	Source
Artificial Analysis Speech Arena: Text to Speech (provider voices)	1,089	`Voxtral TTS` Provider Voice Arena, all categories and accents; rank 45 of 96, 2345 appearances, 95% CI ±12; raw value from the page's embedded data (shown rounded); no last-updated date shown, so as_of = retrieval date.	18 Oct 2026	artificialanalysis.ai

No tracked tool lists this model yet; as open weights it runs in local runtimes.