google / TTS
Gemini 3.1 Flash TTS
google/gemini-3.1-flash-tts-previewLatest Gemini TTS preview
Best for: Turning text into natural-sounding speech
Catalog status
Enabled
Research checked
2026-10-06
Benchmark results
Results are source-attributed, not TokenRex measurements. Different tests and thinking variants are not interchangeable.
Published benchmark coverage
Reviewed sources do not include results for this exact version. Provider specifications and API capabilities remain listed separately.
Model specifications
Input and output modalities
Provider-reported formats; API compatibility is detailed below.
Input
Output
- Exact model ID
- google/gemini-3.1-flash-tts-preview
- Model type
- TTS
Exact token limits are not published in the reviewed sources, so no estimated limits are shown.
Versions and thinking levels
One enabled version is currently listed for this model.
Features and tool support
TokenRex’s exposed interface, not every feature advertised by the provider. “Available” describes the implemented interface, not a successful test of every input or tool.
Input through TokenRex
AvailableText up to 8,000 characters per call on POST /v1/audio/speech, with a voice name.
Output through TokenRex
AvailableMP3 audio file, or live audio chunks with "stream_format": "sse" on OpenAI models (tested).
Function tools
Not exposedSpeech endpoint only — it reads text aloud and does not run tools.
Sources and verification
Provider specifications describe the upstream model, not a guarantee of every feature through TokenRex. Prices come from the enabled catalog; benchmark results belong to the exact tested model.
- Vendor model documentation
Vendor-reported
Last checked
Research notes (1)
- The reviewed discovery source does not verify every specification for this exact TokenRex ID. Missing fields have not been inferred from other releases.