Google · current

Gemini 3.1 Flash TTS Preview

Gemini 3.1 Flash TTS Preview is attributed to Google in the catalog. It accepts text input and produces audio output. Reported capabilities include reasoning.

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Report an error Model and price history

Modalities

Token rates

Unavailable

No recent paired token rate available

Context

Released

2026-04-15

Knowledge cutoff

Jan 2025

Where to use it

2 observed offerings · token prices in USD per million where available

Estimate your workload cost

Kenari

gemini-3-1-flash-tts

current

Input

Output

Cache

—

Context

Max output

16K

Reasoning: No
Tool calling: No
Structured output: Unknown
Temperature: Yes

Historical price

Google

gemini-3.1-flash-tts-preview

current

Input

Output

$20

Cache

—

Context

Max output

16K

Reasoning: Yes
Tool calling: No
Structured output: Unknown
Temperature: Yes

Recent price

Limits and capabilities reflect each provider’s listed offering. Unknown means support was not reported.

Provider / API ID	Status	Context	Max output	Input	Output	Cache read	Reasoning	Tools	Structured	Temperature
Kenari gemini-3-1-flash-tts	currentHistorical price	8K	16K	$0	$0	—	No	No	Unknown	Yes
Google gemini-3.1-flash-tts-preview	currentRecent price	8K	16K	$1	$20	—	Yes	No	Unknown	Yes

Capabilities and limits

Input: text
Output: audio
Max output: 16K
Weights: Closed (source-reported)
Release: 2026-04-15
Knowledge cutoff: Jan 2025
Family: gemini-flash

Reasoning

Provider-specific limits and support can differ.

Plan a model evaluation

Evaluate quality and latency on examples from your intended use before choosing a model.

Explore available evidence

Models to compare

Candidates match reported specifications; they are not tested replacements.

Gemini 3.1 Flash Live PreviewGoogle · 131K contextCompare →Qwen3-Omni FlashAlibaba · 66K contextCompare →GPT-Realtime-2.1OpenAI · 128K contextCompare →

Model and price history

Latest recorded change: source refresh · 2026-10-20

Model changes (2)

source refresh · 2026-10-20

{
  "before": {
    "model_type": null
  },
  "after": {
    "model_type": "speech"
  }
}

source refresh · 2026-10-12

{
  "before": {
    "knowledge_cutoff_reported": null
  },
  "after": {
    "knowledge_cutoff_reported": "2025-01"
  }
}

Price history (59 observations)

Date	Provider	Input / output
2026-11-02	Google	$1 / $20
2026-11-01	Google	$1 / $20
2026-10-31	Google	$1 / $20
2026-10-30	Google	$1 / $20
2026-10-29	Google	$1 / $20
2026-10-28	Google	$1 / $20
2026-10-27	Google	$1 / $20
2026-10-27	Google	$1 / $20
2026-10-27	Google	$1 / $20
2026-10-27	Google	$1 / $20
2026-10-26	Google	$1 / $20
2026-10-25	Google	$1 / $20
2026-10-24	Google	$1 / $20
2026-10-24	Google	$1 / $20
2026-10-24	Google	$1 / $20
2026-10-23	Google	$1 / $20
2026-10-23	Google	$1 / $20
2026-10-23	Google	$1 / $20
2026-10-23	Google	$1 / $20
2026-10-23	Google	$1 / $20
2026-10-22	Google	$1 / $20
2026-10-21	Google	$1 / $20
2026-10-21	Kenari	$0 / $0
2026-10-20	Google	$1 / $20
2026-10-20	Kenari	$0 / $0
2026-10-19	Kenari	$0 / $0
2026-10-19	Google	$1 / $20
2026-10-18	Kenari	$0 / $0
2026-10-18	Google	$1 / $20
2026-10-17	Google	$1 / $20
2026-10-17	Kenari	$0 / $0
2026-10-12	Kenari	$0 / $0
2026-10-12	Google	$1 / $20
2026-10-12	Kenari	$0 / $0
2026-10-12	Google	$1 / $20
2026-10-11	Kenari	$0 / $0
2026-10-11	Google	$1 / $20
2026-10-10	Google	$1 / $20
2026-10-10	Kenari	$0 / $0
2026-10-09	Google	$1 / $20
2026-10-09	Kenari	$0 / $0
2026-10-09	Kenari	$0 / $0
2026-10-09	Google	$1 / $20
2026-10-08	Google	$1 / $20
2026-10-08	Kenari	$0 / $0
2026-10-07	Kenari	$0 / $0
2026-10-07	Google	$1 / $20
2026-09-22	Kenari	$0 / $0
2026-09-22	Google	$1 / $20
2026-09-21	Google	$1 / $20
2026-09-21	Kenari	$0 / $0
2026-09-20	Kenari	$0 / $0
2026-09-20	Google	$1 / $20
2026-09-19	Kenari	$0 / $0
2026-09-19	Google	$1 / $20
2026-09-18	Google	$1 / $20
2026-09-18	Kenari	$0 / $0
2026-09-17	Google	$1 / $20
2026-09-17	Kenari	$0 / $0