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GPT-5 Nano
OpenAI
🧠 Language Model
OpenAI GPT-5 Nano (chat completions endpoint).
Specifications
ModalitiesInput: text, image · Output: text
Context window272K tokens
Max output128K tokens
Speed●●●●● Blazing
FeaturesTools: Yes Streaming: Yes Vision: Yes
Capabilitiestools
Pricing
$0.0875 / 1M input tokens · $0.7 / 1M output tokens
Platform credit pricing — live rates on the Models page.