GPT-6 Luna

OpenAI · openai/gpt-6-luna

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GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic...

GPT-6 Luna ranks #123 of 374 models in the default AI Benchmark Hub order (quality first, then cost). At $0.30 blended per million tokens, it is cheaper than 75% of models with published API pricing. Its 1,050,000-token context window is 4.0× the catalog median (262,144 tokens).

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Context

Max context: 1050000
Max output: 128000

Pricing

Input / 1M: 0.10
Output / 1M: 0.50
Blend / 1M: 0.30

Quality

Quality index:

Provider

Provider: OpenAI
Moderated: yes

Monthly cost at this blended rate

Estimated API spend if every token is billed at $0.30per million (the blend of this model's input and output prices). Real bills depend on the input/output mix.

Tokens / monthEst. cost (USD)
1,000,000$0.30
10,000,000$3.00
100,000,000$30.00

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