OpenAI Inc.
gpt-5-nano:flex
GPT-5 nano is OpenAI's fastest, cheapest version of GPT-5. It's great for summarization and classification tasks.
Vision Support
Advanced Reasoning
Caching Support
Pricing
$0.02
Input tokens per million
$0.2
Output tokens per million
Caching Pricing
$0.02
Cache write per million
Free
Cache read per million
Technical Specifications
Context Window
400K tokens
Max Output Tokens
128K tokens
Global Availability
Last Updated
N/A