GPT-5.2 Chat

GPT-5.2 Chat is a chat-tuned GPT model from OpenAI for conversational assistance, writing, and tool workflows. It is the first version of the gpt-codex line in the registry, released on 2025-12-11. The model has a context window of 128000 tokens and a maximum output of 16384 tokens. It accepts image and text inputs and returns text. It supports reasoning mode and tool calling. Weights are not open. Pricing starts at $0.25 per million input tokens and $2.00 per million output tokens, with cached input at $0.12 per million tokens.

First version of its line in the registry.

Range across the hosts that serve it: up to $3.50 per 1M input tokens.

• ·128k token context window
• ·16k token max output
• ·Reasoning mode for complex tasks
• ·Tool calling for workflows
• ·Accepts image and text input

• Reach for it for conversational assistance
• Reach for it for writing and editing tasks
• Reach for it for tool-driven workflows
• Reach for it for multimodal input tasks

28 hosts serve this model at the price above · the maker's documentation

The registry keeps the six most recent versions of a line. Older ones stay in the file and can be surfaced without a rebuild.

What is the context window size?

The context window is 128000 tokens, and the maximum output is 16384 tokens.

Does it support image input?

Yes, it accepts both image and text inputs, and returns text output.

What is the pricing?

Input starts at $0.25 per million tokens, output at $2.00 per million tokens, and cached input at $0.12 per million tokens.