GPT-5.1 Chat Latest
GPT-5.1 Chat Latest is a chat-tuned variant of GPT-5.1 with a 128,000-token context window, balancing capability with the responsiveness conversational apps need. It supports vision input, tool use, and structured outputs. The variant is suited to interactive applications and multi-turn dialogue, where it holds context across a conversation while staying focused on back-and-forth exchanges.
Key info
Input
Output
Features
Context window
128K
Max output
16K
Available routes
No routes currently available — GPT-5.1 Chat Latest isn't routed through the Opper gateway right now. It may return.
Contact us about this model →