Gemini 3.1 Flash text-to-speech model. Generates low-latency, prompt-steerable audio from text via the /v1/audio/speech endpoint.
LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.
Gemini 3.1 Flash text-to-speech model. Generates low-latency, prompt-steerable audio from text via the /v1/audio/speech endpoint. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
Pricing for Gemini 3.1 Flash TTS Preview on LLM Gateway starts at $1.00 per million input tokens and $20.00 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
Gemini 3.1 Flash TTS Preview supports a context window of up to 8,000 tokens on its largest provider deployment.
Gemini 3.1 Flash TTS Preview is served by Google AI Studio, Google Vertex AI through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
No. Gemini 3.1 Flash TTS Preview does not currently support tool calling or structured JSON outputs through LLM Gateway.
Gemini 3.1 Flash TTS Preview was released on April 15, 2026.
Gemini 3.5 Flash Lite
1,048,576 context$0.30 in / $2.50 out per 1M
Gemini 3.6 Flash
1,048,576 context$1.50 in / $7.50 out per 1M
Gemini 3.1 Flash Lite Image
65,536 context$0.25 in / $1.50 out per 1M
Gemini 3.5 Flash
1,048,576 context$1.50 in / $9.00 out per 1M
Gemini 3.1 Flash Lite
1,048,576 context$0.25 in / $1.50 out per 1M
Gemini Embedding 2
8,192 context$0.20 in / $0.00 out per 1M