OpenAI: GPT-5

Pricing, context window and lifecycle for openai/gpt-5, tracked from what the vendor publishes.

Price per million tokens

Input$1.25
Output$10.00
Cache price (read)$0.125
Max price$10.00

Facts

Model IDopenai/gpt-5
VendorOpenAI
Token limit (context window)400,000 tokens
Knowledge cutoff2024-09-30
End of lifenone published

Supported parameters

include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, tool_choice, tools

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