google

Google: Gemini 3.8 Flash (batch)

Name: Google: Gemini 3.8 Flash (batch)
Creator: google
Published: 2026-09-02T15:14:16.000Z

Source description (English)

Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.

View source on OpenRouter

Overview

Model specifications

Context: 1,048,576 tokens
Maximum output: 65,536 tokens
Architecture: text+image+file+audio+video->text
Tokenizer: Gemini
Knowledge cutoff: Not provided
Moderated: No

OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input: $0.375
Output: $1.875
Cache read: $0.0375
Cache write: $0.0417
Image input: $0.375
Audio input: $0.375
Input Audio Cache: $0.0375
Web search: $14

API

Model configuration

Reasoning

Reasoning required: Yes
Default parameters: medium
Capabilities: high, medium, low

API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

This submits an asynchronous batch using the base model ID. A job ID confirms submission, not completion.

API documentation

curl --fail-with-body https://openrouter.ai/api/beta/batches \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"endpoint":"/v1/chat/completions","model":"google/gemini-3.8-flash","requests":[{"custom_id":"request-1","body":{"messages":[{"role":"user","content":"Hello!"}]}}]}'

# Replace JOB_ID with the returned id to check progress.
curl --fail-with-body "https://openrouter.ai/api/beta/batches/JOB_ID" \
  -H "Authorization: Bearer $OPENROUTER_API_KEY"

Capabilities

Input → Output

Input

textimagevideofileaudio

Output

text

Reasoning

Yes · high · medium · low

API

Supported API parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstopstructured_outputstool_choicetools

Available providers

1 Provider

Checked: September 7, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

Google

Not provided

Context: 1.0M
Maximum output: 66K
Input: $0.375
Output: $1.875
Cache read: $0.0375
Cache write: $0.0417

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Released Sep 2, 2026