Gemini 2.5 Flash Lite Preview (09/2025) – Thinking API
About
Build advanced reasoning agents with Gemini 2.5 Flash Lite Preview (09/2025) – Thinking, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.10/1M input and $0.40/1M output tokens, native tool calling support. Access Gemini 2.5 Flash Lite Preview (09/2025) – Thinking via the NanoGPT API with up to 66K output tokens.
Capabilities
Input Modalities
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Output Modalities
text
Limits
Context Window
1.0M
Tokens
Input Limit
1.0M
Tokens
Max Output
66K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.10
Output
$0.40
Frequently Asked Questions
Gemini 2.5 Flash Lite Preview (09/2025) – Thinking by NanoGPT costs $0.10 per 1M input tokens and $0.40 per 1M output tokens.
Model Details
ID
gemini-2.5-flash-lite-preview-09-2025-thinking
Provider
NanoGPTFamily
Release Date
Sep 25, 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