Data as of November 7, 2026 · How the score is built
Gemini 3.8 Flash TTS
Decision readingGemini 3.8 Flash TTS is tracked, but not publicly ranked yet. Published speech or voice results from Gemini 3.8 TTS launch evaluation appear below. They do not produce a weighted text-model score.
Released Sep 23, 2026 — see all recent releases
Voice benchmark evidence
Gemini 3.8 TTS launch evaluation is an owner-defined voice evaluation. Its result stays separate from BenchLM's weighted text-model ranking.
Lineage
The sequence follows explicit supersedes links. Each score is estimated for that model; a relative can inform a sparse estimate but never sets a floor, so a newer release can score below an earlier one. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.
Base entry
Gemini 3.8 Flash-Lite TTSSpec sheet
Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.
- API model ID
- gemini-3.8-flash-ttsGoogle Gemini 3.8 Flash TTS model documentation
- Context window
- 8KGoogle DeepMind Gemini 3.8 Audio model card
- Maximum output
- Not sourced yet
- Knowledge cutoff
- Not sourced yet
- Input modalities
- textGoogle DeepMind Gemini 3.8 Audio model card
- Output modalities
- audioGoogle DeepMind Gemini 3.8 Audio model card
- Parameters
- Not disclosed by the provider
- Availability
- Gemini API · Google AI StudioGoogle Gemini 3.8 Flash TTS model documentation
- Cloud regions
- Not tracked yet
- Lifecycle
- activeGoogle Gemini 3.8 Flash TTS model documentation
- API capabilities
- Tool calling, structured outputs, and batch support are not tracked yet
- Prompt caching
- Not documented in the pricing recordGoogle model documentation
- Self-host
- Weights are not published
- Rate limits
- Not tracked yet
How to read this profile
The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.
We track Gemini 3.8 Flash TTS, but no weighted text-model benchmark result is published on the site yet. This page shows the metadata and separate protocol evidence we can verify now; a BenchLM score will appear only if compatible public evaluations land.
Gemini 3.8 Flash TTS is a proprietary model with a 8K context window. No explicit reasoning mode is documented in this profile.
Released September 23, 2026 as the stable `gemini-3.8-flash-tts` model in the Gemini API and Google AI Studio, with Gemini Notebook access rolling out. Google documents 8,192 text input tokens, audio output, 130 supported languages, voice design and replication, and SynthID watermarking. Gemini Enterprise API access is planned, not yet available.
Gemini 3.8 Flash TTS is a display-only text-to-speech model for voice design, long-form narration, and multi-speaker dialogue. Its voice results remain separate from weighted text-model scores.
Gemini 3.8 Flash TTS sits in the Gemini 3.8 TTS family with Gemini 3.8 Flash-Lite TTS. Speech or voice evidence appears above; text-model benchmark coverage remains empty.
Last updated November 7, 2026. Runtime fields remain blank until a sourced snapshot exists.
Questions
How does Gemini 3.8 Flash TTS perform overall in AI benchmarks?
Gemini 3.8 Flash TTS has published speech or voice results in Gemini 3.8 TTS launch evaluation. Those results remain separate from the weighted text-model ranking, so this profile does not assign a BenchLM score or overall rank. Use the linked evaluation's metric and run conditions to compare speech systems.
Which sibling models are related to Gemini 3.8 Flash TTS?
Gemini 3.8 Flash TTS belongs to the Gemini 3.8 TTS family. Related tracked variants include Gemini 3.8 Flash-Lite TTS. A sibling link indicates shared lineage or a documented configuration relationship; it does not mean the variants have identical pricing, context limits, benchmark evidence, or deployment behavior. Compare before switching.
Does Gemini 3.8 Flash TTS have full benchmark coverage on BenchLM?
No. Gemini 3.8 Flash TTS's speech or voice results appear in Gemini 3.8 TTS launch evaluation, but it has no published text-model benchmark rows. The voice evaluation does not fill the text-model coverage slots or produce an overall rank. Missing text coverage is not treated as a zero score.
What is the context window size of Gemini 3.8 Flash TTS?
Gemini 3.8 Flash TTS has a documented context window of 8K. That figure is the maximum combined prompt and retained-conversation space reported for this exact model; it is not the maximum output length. The profile keeps output limits separate because providers often publish those limits independently.