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...
Specifications
| Provider | OpenAI |
|---|---|
| Context window | 400,000 tokens (400K) |
| Input price | $0.05 / 1M tokens |
| Output price | $0.4 / 1M tokens |
| Input modalities | text, image, file |
| Output modalities | text |
| Model ID | openai/gpt-5-nano |
Pricing is per 1M tokens, indicative pricing via OpenRouter (updated 2026-08-22); a provider's own list price may differ.
Frequently asked questions
How much does GPT-5 Nano cost?
Indicative pricing (via OpenRouter, updated 2026-08-22) is $0.05 per 1M input tokens and $0.4 per 1M output tokens. A provider's own list price may differ. On Vincony, GPT-5 Nano is available on credit-based pricing alongside 800+ other models.
What is GPT-5 Nano's context window?
GPT-5 Nano supports a context window of up to 400,000 tokens (400K), which is how much text it can consider at once.
Who makes GPT-5 Nano?
GPT-5 Nano is built by OpenAI. You can access it — and compare it against other providers' models — through Vincony's multi-model platform.
How do I use GPT-5 Nano?
You can use GPT-5 Nano directly through OpenAI, or via Vincony, which aggregates 800+ models (including GPT-5 Nano) into one interface with side-by-side comparison and credit-based pricing.