Gemini 3 Flash Thinking API
About
Build advanced reasoning agents with Gemini 3 Flash Thinking, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.50/1M input and $3.00/1M output tokens. Access Gemini 3 Flash Thinking via the NanoGPT API with up to 66K output tokens.
Capabilities
Input Modalities
textimage
Output Modalities
text
Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Fixed
Attachment
Supported
Limits
Context Window
1.0M
Tokens
Input Limit
1.0M
Tokens
Max Output
66K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.50
Output
$3.00
Frequently Asked Questions
Gemini 3 Flash Thinking by NanoGPT costs $0.50 per 1M input tokens and $3.00 per 1M output tokens.
Model Details
ID
google/gemini-3-flash-preview-thinking
Provider
NanoGPTFamily
gemini-flash
Release Date
Dec 17, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NANO_GPT_API_KEY
API Base URL
https://nano-gpt.com/api/v1