Reference
O

GPT 5.6 Luna

GPT 5.6 Luna, a language model from OpenAI.
modelOverride: { model: "gpt-5.6-luna" }
OpenAI·Released July 2026
Pricing
Input
$0.20 / 1M
Output
$1.20 / 1M
Input
$0.40 / 1M
Output
$1.80 / 1M
Cached input
$0.020 / 1M
Cached input
$0.25 / 1M
Cached input
$0.040 / 1M
Cached input
$0.50 / 1M
Specifications
Context window
1,050,000 tokens
Max output
128,000 tokens
Released
July 2026
Capabilities
Vision
Parameters
Model options, passed in modelOverride.config.
ParameterTypeDefaultRange / options
reasoning_effortSelectmediumnonelowmediumhighxhighmax
toolsTools
mcpServersMCP servers
Use this model
await mindstudio.generateText({
  message: "...",
  modelOverride: {
    model: "gpt-5.6-luna",
    config: {
      reasoning_effort: "medium",
    },
  },
});