Overview
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.
GPT-5 Nano is available in OmnyChat. 400,000 token context window. Image input. Reasoning mode. Tool calling.
Key capabilities
- 400,000 token context window
- Image input
- Reasoning mode
- Tool calling
Using this model
In OmnyChat
Use GPT-5 Nano in OmnyChat and compare its results with other language models on the same task.
Best for: Chat and comparing answers on your own prompts.
Frequently asked questions
How do I use GPT-5 Nano?
Open chat in OmnyChat and select GPT-5 Nano. Model access and usage depend on your plan.
What does GPT-5 Nano support in OmnyChat?
400,000 token context window. Image input. Reasoning mode. Tool calling.