GPT-6 Lunavso1-preview
GPT-6 Luna | o1-preview | |
|---|---|---|
| Specifications | ||
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 1.05M | 128k |
| API pricingUSD per 1M tokens · lower wins · base tier | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | $0.10 | $15.00 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | $0.50 | $60.00 |
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again. | $0.01 | $7.50 |
| BenchmarksPublished by one model only | ||
DeepSWE 1.1Agentic coding — Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better. | 66.6% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 73.3% |
| Overview | ||
| Company | OpenAI | OpenAI |
| Release date | Sep 22 2026 | Sep 12 2024 |
| Access | Proprietary | Proprietary |
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Frequently asked questions
GPT-6 Luna and o1-preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-6 Luna is cheaper on both input and output: $0.10 vs $15.00 per million input tokens, and $0.50 vs $60.00 per million output tokens. Figures are base-tier rates. o1-preview shipped 740 days before GPT-6 Luna, so benchmark comparisons should account for the intervening progress.
Context windows are 1.05M (GPT-6 Luna) vs 128k (o1-preview).
Direct benchmark comparisons are unavailable — GPT-6 Luna and o1-preview don't publish scores on any of the same benchmarks.