GPT-5 Chat chat

openrouter
openai
GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.

Capabilities

Context Window 128k tokens
Max Output 16k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $1.25
Output $10.00
Cache Read $0.12
Cache Write -

Supported Parameters

max_tokensresponse_formatseedstructured_outputs