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GPT-5.6 LunaChat with this model
AttributeGPT-5.6 Lunaopenai/gpt-5.6-luna
Specs
Context window1M
Max output128K
Input modalitiesTextImage
Output modalitiesText
Capabilities
StreamingSupported
Tool callingSupported
Structured output (JSON)Supported
Image inputSupported
Thinking modeSupported
Price / 1M tokens
Input$ 0.20>= 272K$ 0.40
Output$ 1.20>= 272K$ 1.80
Cache read$ 0.020>= 272K$ 0.040
Cache write$ 0.25>= 272K$ 0.50
What it is good at
Best for
  • High-volume agent execution
  • Routine implementation and subagents
Published benchmarks
Terminal-Bench 2.1pass_rate
  • 84.7%effort max(setup not fully disclosed)
BrowseComp (with tools)accuracy
  • 83.3%effort max(setup not fully disclosed)
Agents' Last Examscore
  • 50.3%effort max(setup not fully disclosed)
SWE-Bench Pro (Public)pass_rate
  • 62.7%effort max(setup not fully disclosed)
OSWorld 2.0success_rate
  • 45.6%effort max(setup not fully disclosed)
OpenAI MRCR v2 8-needle 512K–1Maccuracy
  • 41.3%effort max(setup not fully disclosed)
MMMU Pro (with tools)accuracy
  • 79.5%effort max(setup not fully disclosed)
GPQA Diamondaccuracy
  • 92.3%effort max(setup not fully disclosed)
Toolathlonscore
  • 53.4%effort max(setup not fully disclosed)