> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gradium.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# September 2026

> Gradium releases from September 2026

<Update label="2026.09.08" description="Voice Design">
  Create a voice from a written description, no audio sample needed. Describe the accent, age and character you need, generate up to five candidates, and keep your favourite. The voice works with the same Text-to-Speech endpoint as any catalogue voice.

  In our blind listening evaluation, native speakers judged how well voices matched accent prompts. Gradium achieved a 72.6% win rate against ElevenLabs, Inworld, MiniMax and Fish Audio, counting ties as half a win, and ranked first in English, French, Spanish, Portuguese and German.

  See the [Voice Design guide](https://docs.gradium.ai/guides/voices/voice-design) to get started.
</Update>

<Update label="2026.09.02" description="Longer sessions">
  A session can last up to 3000 seconds. See [Limits](/guides/limits#session-duration).
</Update>