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GPT‑5.2 Pro

GPT‑5.2 Pro, a language model from OpenAI.
modelOverride: { model: "gpt-5.2" }
OpenAI·Released December 2025
Pricing
Input
$21.00 / 1M
Output
$168.00 / 1M
Cached input
$0.17 / 1M
Specifications
Context window
400,000 tokens
Max output
256,000 tokens
Released
December 2025
Model string
gpt-5.2-pro
Capabilities
VisionReasoningToolsMCP
Parameters
Model options, passed in modelOverride.config.
ParameterTypeDefaultRange / options
reasoning_effort
Used to give the model guidance on how many reasoning tokens it should generate before creating a response to the prompt. Low will favor speed and economical token usage, and high will favor more complete reasoning at the cost of more tokens generated and slower responses. The default value is medium, which is a balance between speed and reasoning accuracy.
Selectmediummediumhighxhigh
toolsTools——
mcpServersMCP servers——
Use this model
await mindstudio.generateText({
  message: "...",
  modelOverride: {
    model: "gpt-5.2",
    config: {
      reasoning_effort: "medium",
    },
  },
});