GPT-5.2 Chat
Summary
GPT-5.2 Chat is a language model from OpenAI, released on 10 Dec 2025. It accepts files, images and text and generates text, with a 128K-token context window and up to 32K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $1.75 per million input tokens and $14 per million output tokens (OpenRouter), across 1 provider we track.
GPT-5.2 Chat (AKA Instant) is the fast, lightweight member of the 5.2 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | OpenAI |
|---|---|
| Release date | 10 Dec 2025 [OpenRouter] |
| Status | Generally available |
| Context window | 128K (128,000 tokens) [OpenRouter] |
| Max output | 32K tokens [OpenRouter] |
| Input | Files, images and text [OpenRouter] |
| Output | Text [OpenRouter] |
| Reasoning mode | No [OpenRouter] |
| Tool calling | Yes [OpenRouter] |
| Structured output | Yes [OpenRouter] |
GPT-5.2 Chat API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| OpenRouter openai/gpt-5.2-chat | $1.75 | $14 | $0.17 | 128K | OpenRouter, 4 Oct 2026 |
Frequently asked questions
What is the context window of GPT-5.2 Chat?
GPT-5.2 Chat has a context window of 128,000 tokens (128K) and can generate up to 32,000 tokens in a single response, according to OpenRouter.
How much does the GPT-5.2 Chat API cost?
GPT-5.2 Chat is listed from $1.75 per million input tokens and $14 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.
When was GPT-5.2 Chat released?
OpenAI released GPT-5.2 Chat on 10 Dec 2025, according to OpenRouter.
Change history
No changes detected since we started tracking this model. We re-check every source daily.