Reference
X

Grok 4.5

Grok 4.5, a language model from X.ai.
modelOverride: { model: "grok-4.5" }
X.ai·Released July 2026
Pricing
Input
$2.00 / 1M
Output
$6.00 / 1M
Cached input
$0.30 / 1M
Specifications
Context window
500,000 tokens
Max output
450,000 tokens
Released
July 2026
Parameters
Model options, passed in modelOverride.config.
ParameterTypeDefaultRange / options
reasoning_effort
Control the thinking depth of the model.
Selecthighlowmediumhigh
Use this model
await mindstudio.generateText({
  message: "...",
  modelOverride: {
    model: "grok-4.5",
    config: {
      reasoning_effort: "high",
    },
  },
});