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Gemini 3.1 Flash Live

Gemini 3.1 Flash Live is a verified current AI model with official specifications, pricing or access details, capabilities, practical use cases, strengths and limitations.

Realtime Voice ModelTextImageAudioVideo Freemium
In plain English

What is this model and why does it matter?

Gemini 3.1 Flash Live is Google's low-latency audio-to-audio preview model for realtime dialogue, voice-first agents and multimodal conversational experiences.

Voice agentsRealtime assistantsMultimodal conversationsCustomer supportInteractive applications
Model overview

Gemini 3.1 Flash Live: features, use cases and important details

Gemini 3.1 Flash Live is a current AI model verified from first-party Google sources.

Gemini 3.1 Flash Live verified specifications

Gemini 3.1 Flash Live is Google’s low-latency audio-to-audio preview model for realtime dialogue, voice-first agents and multimodal conversational experiences. Its verified context or usage limit is 131072 input tokens, with 65536 output tokens maximum output.

Gemini 3.1 Flash Live pricing and access

Gemini 3.1 Flash Live has a free tier. Paid rates are $0.75/M text input, $3/M audio input (about $0.005/min), $1/M image/video input, $4.50/M text output and $12/M audio output (about $0.018/min).

Gemini 3.1 Flash Live best uses

Voice agents, Realtime assistants, Multimodal conversations, Customer support, Interactive applications.

Gemini 3.1 Flash Live limitations

Async function calling is not supported, Live sessions can accumulate context cost, Preview behavior can change.

Gemini 3.1 Flash Live capabilities and use cases

In addition, its main capabilities include 131K input, 65K output, Realtime audio in/out, Image/video awareness, Function calling and Search grounding. For example, common use cases include Voice bots, Realtime tutoring, Contact centers, Multimodal assistants and Interactive apps.

Who should consider Gemini 3.1 Flash Live?

In practice, this model may suit Voice agents, Realtime assistants, Multimodal conversations, Customer support and Interactive applications. Also, notable strengths include Low-latency audio-to-audio, Multimodal, Function calling and Free tier. However, review trade-offs such as Async function calling is not supported, Live sessions can accumulate context cost and Preview behavior can change before adopting it.

Gemini 3.1 Flash Live pricing and access

Meanwhile, Gemini 3.1 Flash Live has a free tier. Paid rates are $0.75/M text input, $3/M audio input (about $0.005/min), $1/M image/video input, $4.50/M text output and $12/M audio output (about $0.018/min). Free tier available; paid billing is modality-based and Live API context is reprocessed across turns.

Official resources and verification

Use the official model website, official documentation, pricing or release source and additional primary source to confirm current availability, limits and pricing. Product details can change after publication, so rely on primary documentation for final decisions.

Compare with other AI models

Next, continue your research in the AI models directory, Google models and Realtime Voice Model models. Compare providers, pricing, modalities and practical limitations side by side to choose the right model for your workflow.

Get started

How to use this model

  1. Create a Gemini API key.
  2. Open a Live API session.
  3. Call gemini-3.1-flash-live-preview.
  4. Stream audio and optional visual context.
  5. Use synchronous function calling where required.
  6. Compress long session context to control cost.
Copy and try

Example prompts

  • Act as a realtime voice assistant for this support call.
  • Discuss this live video feed with the user.
  • Listen to the speaker and use the available function when confirmation is given.
Capabilities

What it can do

  • 131K input
  • 65K output
  • Realtime audio in/out
  • Image/video awareness
  • Function calling
  • Search grounding
  • Thinking
Best for

Practical use cases

  • Voice bots
  • Realtime tutoring
  • Contact centers
  • Multimodal assistants
  • Interactive apps
Pricing

What does it cost?

Gemini 3.1 Flash Live has a free tier. Paid rates are $0.75/M text input, $3/M audio input (about $0.005/min), $1/M image/video input, $4.50/M text output and $12/M audio output (about $0.018/min).

Input$0.75/M text; $3/M audio (~$0.005/min)
Output$4.50/M text; $12/M audio (~$0.018/min)
Simple summaryFree tier available; paid billing is modality-based and Live API context is reprocessed across turns.

What stands out

  • Low-latency audio-to-audio
  • Multimodal
  • Function calling
  • Free tier

Things to consider

  • Preview status
  • No structured outputs
  • No batch API
Limitations

Important restrictions and trade-offs

  • Async function calling is not supported
  • Live sessions can accumulate context cost
  • Preview behavior can change
SimplifyAITools verdict

Our editorial take

A strong current voice-model target for users building Gemini realtime conversational and multimodal agents.

References

Primary sources

  1. Open source 1 ↗
  2. Open source 2 ↗
  3. Open source 3 ↗