OpenAI: GPT-5.6 Luna

Pricing, context window and lifecycle for openai/gpt-5.6-luna, tracked from what the vendor publishes.

Price per million tokens

Input$0.100
Output$0.600
Cache read$0.010
Cache write$0.125

Facts

Model IDopenai/gpt-5.6-luna
VendorOpenAI
Context window1,050,000 tokens
Knowledge cutoff2026-02-16
End of lifenone published

Supported parameters

include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, tool_choice, tools

Other OpenAI models

Change history

Every change we have observed since tracking began.

DetectedChangeDetail
2026-08-02 19:14Pricing ChangeOutput $0.600 -> $0.600 (-0.0%) · Cache write $0.125 -> $0.125 (-0.0%) · overrides - -> -
2026-07-30 19:10Pricing ChangeOutput $3.00 -> $0.600 (-80.0%) · Cache read $0.050 -> $0.010 (-80.0%) · Cache write $0.625 -> $0.125 (-80.0%) · overrides - -> - · Input $0.500 -> $0.100 (-80.0%)