OpenAI: GPT-5 Nano
OpenAI Economy
Model ID: gpt-5-nano
Pricing
Input $0.05 / 1M tokens
Output $0.40 / 1M tokens
Cache Read $0.0050 / 1M tokens
Specifications
Context Window 400K tokens
Max Output 128K tokens
Family gpt-5
Mode chat
Capabilities
StreamingSystem PromptsVisionFunction CallingReasoningJSON Mode