Gemini 3.8 Live

by Google

Gemini 3.8 Live is Google's real-time conversational model for the Live API, released on September 15, 2026 alongside Gemini 3.8 Live Extended Thinking. Google positions it as the default choice for most low-latency voice agents and real-time dialogue, while the Extended Thinking variant is meant for harder multi-step reasoning during a conversation. The model takes audio, video, images and text as input and responds with audio and text, with a 131,072-token input limit and 65,536 output tokens. It supports interleaved reasoning, function calling that runs asynchronously in the background without interrupting the dialogue, and Google Search grounding. Google says it processes visual input in near real time and handles 97 languages, detecting and switching language mid-conversation. Google cites a number two ranking on Artificial Analysis' Speech Agent Arena. It fits voice assistants, customer-facing voice agents, and live camera or screen-share experiences where the model needs to talk, look and act at the same time.

Call Gemini 3.8 Live on Opper with the OpenAI SDK. Sign up without a credit card. Get started

Key info

Input
Output
Features
Context window
131K
Max output
66K
Input price
$0.75 /1M
Output price
$4.50 /1M
  • US residency available
  • Zero data retention with abuse monitoring
  • No training by default
  • GDPR DPA available

Available routes

Gemini 3.8 Live runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutputCache read
USNo$0.75$4.50Input price

Live routes and prices as JSON: api.opper.ai/v3/models?q=gemini%2Fgemini-3.8-live

Uptime and availability

Gemini 3.8 Live runs on a single route through the Opper gateway today, so its availability is that provider's availability.

100%route uptime, last 30 days
Single route, no failover target within this model.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting Gemini 3.8 Live has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Google Cloud — United States🇺🇸

Zero data retention with abuse monitoring: prompts and outputs are kept for abuse monitoring only, for a window the provider does not state, and are not used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention
With abuse monitoring, window not stated.
Training
No training on customer data.
Logging
Abuse monitoring
Abuse monitoring
On by default, holds flagged content, 55 days, a person can view samples
GDPR DPA
DPA available
Transfer mechanism
SCCs

Get started

Call Gemini 3.8 Live through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

Gemini 3.8 Live is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "gemini/gemini-3.8-live",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Use Gemini 3.8 Live in your apps

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