---
id: "openai/gpt-5.2"
also: ["openai/gpt-5.2-20251211", "requesty/openai/gpt-5.2", "vercel/openai/gpt-5.2"]
card_usd_per_m: "1.75 in, 14.0 out, at openai"
cheapest_list_usd_per_m: "0.875 in, 7.0 out, at openai/flex on openrouter"
cheapest_effective_usd_per_m: "0.6736 in, 7.0 out, at openai/flex on openrouter"
context: 400000
max_output: 128000
input: ["file", "image", "text"]
output: ["text"]
released: "2025-12-10"
reasoning: ["xhigh", "high", "medium", "low", "none"]
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["include_reasoning", "max_completion_tokens", "max_tokens", "reasoning", "reasoning_effort", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "verbosity"]
endpoints: 10
gateways: "openrouter (5), requesty (3), vercel (2)"
no_training: 9
trains: 0
retains_prompts: 5
---
# OpenAI: GPT-5.2

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.