GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.
by Openai|400K context|$0.05/M input tokens|$0.40/M output tokens
Endpoints
Available providers for this model, with details on pricing, context limits, and real-time health metrics.
