GPT-6 Luna lands #24 in Code Arena WebDev, OpenAI cuts API prices 50% vs GPT-5.6
RexDouglass · x · 2026-09-25
OpenAI officially released GPT-6 Sol and GPT-6 Luna, two faster and more affordable models built on GPT-6 Astra's advances, designed for large-scale workloads.
Key points:
- Pricing: Sol and Luna API prices are 50% lower than GPT-5.6 promotional pricing; Luna's blended rate is about $0.40/Mtoken. OpenAI says gains from more efficient caching and inference are passed directly to users.
- Benchmarks: GPT-6 Luna (Max) scored 1593 points, ranking #24 on Code Arena: WebDev — a +74pt improvement over GPT-5.6 Luna (xHigh), now at #41.
- Comparison: Luna performs on par with cheaper models like Gemini 3.7 Flash High and Qwen 3.8-27B, but at a fraction of the price.
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