Gemini 3.5 Flash API
About
Build advanced reasoning agents with Gemini 3.5 Flash, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $1.50/1M input and $9.00/1M output tokens, native tool calling support. Access Gemini 3.5 Flash via the GitHub Copilot API with up to 64K output tokens.
Capabilities
Input Modalities
textimagevideoaudio
Limits
Context Window
200K
Tokens
Input Limit
128K
Tokens
Max Output
64K
Tokens
Pricing
Standard (per 1M tokens)
Input
$1.50
Output
$9.00
Caching (per 1M tokens)
Read
$0.15
Audio (per 1M tokens)
Input
$1.50
Frequently Asked Questions
Gemini 3.5 Flash by GitHub Copilot costs $1.50 per 1M input tokens and $9.00 per 1M output tokens. Cached reads cost $0.15 per 1M tokens.
Model Details
ID
gemini-3.5-flash
Provider
GitHub CopilotFamily
gemini-flash
Release Date
May 19, 2026
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
GITHUB_TOKEN
API Base URL
https://api.githubcopilot.com