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OpenAI: GPT-5.2

openai/gpt-5.2

Created Dec 10, 2025400,000 context
$1.75/M input tokens$14/M output tokens$10/K web search

GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1. It uses adaptive reasoning to allocate computation dynamically, responding quickly to simple queries while spending more depth on complex tasks.

Built for broad task coverage, GPT-5.2 delivers consistent gains across math, coding, sciende, and tool calling workloads, with more coherent long-form answers and improved tool-use reliability.

Recent activity on GPT-5.2

Total usage per day on OpenRouter

Prompt
4.03B
Reasoning
134M
Completion
104M

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.