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GPT-6 Luna — and what?

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 1 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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GPT-6 Luna
openai/gpt-6-luna
Provider
OpenAI
Family
Modality
text
Context window
1,050,000 tok
Max output
128,000 tok
Released
2026-09-23
License
Open-weight
Input price
$0.100 /1M
Output price
$0.500 /1M
Tools
Streaming
yes
Vision
JSON mode
Reasoning
Prompt caching
Batch API
Try it
Open in playground →
GPT-6 Luna
openai/gpt-6-luna
Full spec →

GPT-6 Luna is OpenAI's most efficient GPT-6 model, built for focused, high-volume tasks.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows