All Models
GPT-5 Nano
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.
Available Providers (15)
| Provider | Model ID | Input Cost | Output Cost | Context | Max Output | Docs |
|---|---|---|---|---|---|---|
 OpenCode Zen | gpt-5-nano | $0.00/MTok | $0.00/MTok | 400K | 128K | |
 Poe | openai/gpt-5-nano | $0.04/MTok | $0.36/MTok | 400K | 128K | |
 Jiekou.AI | gpt-5-nano | $0.04/MTok | $0.36/MTok | 400K | 128K | |
 FastRouter | openai/gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 Azure Cognitive Services | gpt-5-nano | $0.05/MTok | $0.40/MTok | 272K | 128K | |
 Abacus | gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 OpenRouter | openai/gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 SAP AI Core | gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 Firmware | gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 Requesty | openai/gpt-5-nano | $0.05/MTok | $0.40/MTok | 16K | 4K | |
 Vercel AI Gateway | openai/gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 OpenAI | gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 NanoGPT | openai/gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | 128K | |
 Azure | gpt-5-nano | $0.05/MTok | $0.40/MTok | 272K | 128K | |
 AIHubMix | gpt-5-nano | $0.50/MTok | $2.00/MTok | 128K | 16.4K |
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Structured Output