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GPT-6 Luna Pro

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GPT-6 Luna Pro sits in the frontier tier, built for high-capability reasoning, tool use, and long-form output where capability outweighs cost. Available via OpenAI. 1,050,000-token context. Efficient pricing.

GPT-6 Luna Pro is a multimodal AI model from OpenAI. It costs $0.100 per million input tokens and $0.500 per million output tokens (blended $0.220/M), with a 1,050,000-token context window.

INPUT
$0.100/M
per million input tokens
OUTPUT
$0.500/M
per million output tokens
BLENDED 70/30
$0.220/M
unchanged since 3 May
CONTEXT
1,050,000
tokens
What it is good at
  • Strong general reasoning
  • Tool use & function calling
  • Long-form writing
  • Production-grade reliability
  • Multimodal: handles images alongside text
Typical use cases
  • Production assistants
  • Long-document analysis
  • Multi-step agent workflows
  • Engineering copilots

Benchmarks

No published benchmark scores tracked for this model yet. Frontier and reasoning models from major providers have scores; smaller models and inference-host variants typically inherit the underlying open-weights score.

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Frequently asked questions

How much does GPT-6 Luna Pro cost?

GPT-6 Luna Pro costs $0.100 per million input tokens and $0.500 per million output tokens, for a blended reference rate of $0.220 per million tokens.

What is GPT-6 Luna Pro's context window?

GPT-6 Luna Pro supports up to 1,050,000 tokens of context in a single request.

What is GPT-6 Luna Pro best for?

GPT-6 Luna Pro is well suited to Strong general reasoning, Tool use & function calling and Long-form writing.

Who makes GPT-6 Luna Pro?

GPT-6 Luna Pro is developed and served by OpenAI.

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