Gemini 3.1 Flash TTS Preview
Googleai.google.dev/gemini-api/docs/models/gemini-3.1-
Powerful, low-latency speech generation, with natural outputs, steerable prompts, and new expressive audio tags for precise narration control.
Updated 2 h ago · first seen 11 Sept 2026
model_01M293V7V11SZ3MM3RR9JY881S
- Context
- 8.19K tokens
- T1 · 2 h ago
Specification
- Family
- Gemini
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Context window
- 8.19K tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Max output
- 16.4K tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Modalities
- audio, text
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Input modalities
- text
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Output modalities
- audio
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- API model id
- gemini-3.1-flash-tts-preview
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Official page
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Capabilities
- Audio generation
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Latest update
- 2026-04
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →
Provenance
Attributed facts
14
Source tiers
T114
Freshest observation
2 h ago
Conflicts
None
Modalities
- Modalities
- audiotext
- Input
- text
- Output
- audio
Capabilities
Tool calling
No
Google AI for Developers (Gemini API docs) · T1
Structured output
No
Google AI for Developers (Gemini API docs) · T1
Reasoning
No
Google AI for Developers (Gemini API docs) · T1
Vision
Unavailable
Audio
Unavailable
Fine-tuning available
Unavailable
- Context window
- 8.19K tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
- Max output
- 16.4K tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
No benchmark results recorded
Current prices
| Provider | Input / 1M | Output / 1M | Cached in | Batch in / out | Context | Observed | Source |
|---|---|---|---|---|---|---|---|
| Google Gemini APIgemini-3.1-flash-tts-preview | $1 | $20 | — | $0.50 / $10 | — | 2 h ago | ai.google.devT1 |
USD per 1M tokens as published by each provider (USD). Rows are append-only: every change is kept in the history below.
Available through 1
Price history
Input price · USD / 1M tokens
Output price · USD / 1M tokens
- Google Gemini API
No hardware estimate available
No lineage recorded
Papers 0
No papers linked yet.
Repositories 0
No repositories linked yet.
As of
Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.
Claim history
Familyfamily1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| Gemini | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Context windowcontext_length1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| 8.19K tokens | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Max outputmax_output_tokens1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| 16.4K tokens | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Modalitiesmodalities1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| audio, text | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Input modalitiesmodalities_input1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| text | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Output modalitiesmodalities_output1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| audio | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
API model idapi_model_id1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| gemini-3.1-flash-tts-preview | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Official pageofficial_url1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| https://ai.google.dev/gemini-api/docs/models/gemini-3.1-flash-tts-preview | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Capabilitiescapabilities1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| Audio generation | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Descriptiondescription6
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| Powerful, low-latency speech generation, with natural outputs, steerable prompts, and new expressive audio tags for precise narration control. | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
| Powerful, low-latency speech generation. | → | superseded | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
| Powerful, low-latency speech generation. | → | superseded | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
| Powerful, low-latency speech generation, with natural outputs, steerable prompts, and new expressive audio tags for precise narration control. | → | superseded | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
| Powerful, low-latency speech generation. | → | superseded | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
| Powerful, low-latency speech generation, with natural outputs, steerable prompts, and new expressive audio tags for precise narration control. | → | superseded | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Latest updatelatest_update1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| 2026-04 | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Reasoningreasoning1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| No | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Structured outputstructured_output1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| No | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Tool callingtool_calling1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| No | → current | current | Google AI for Developers (Gemini API docs)T1 | high | deterministic |
Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →
New model: Gemini 3.1 Flash TTS Preview (Google)
googleGoogle Gemini API lists Gemini 3.1 Flash TTS Preview at $1 in / $20 out per 1M tokens
google
| Source | Document | Type | Tier | Last observed | Snapshots |
|---|---|---|---|---|---|
| Google AI for Developers (Gemini API docs) | ai.google.dev/gemini-api/docs/models/gemini-3.1-flash-tts-preview | model_page | T1· Official | 2 h ago | 3 |
| Google AI for Developers (Gemini API docs) | ai.google.dev/gemini-api/docs/models | model_docs | T1· Official | 2 h ago | 3 |
| Google AI for Developers (Gemini API docs) | ai.google.dev/gemini-api/docs/pricing | pricing | T1· Official | 2 h ago | 3 |
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.