🤖OpenAI GPT-6 Sol and Luna Launch at Half of GPT-5.6 Prices
TL;DR
OpenAI released GPT-6 Sol and GPT-6 Luna on Sept 22, cutting API prices 50% versus GPT-5.6. Sol costs $2/$10 per million tokens and Luna just $0.10/$0.50.
OpenAI released GPT-6 Sol and GPT-6 Luna on Sept 22, cutting API prices 50% versus GPT-5.6. Sol costs $2/$10 per million tokens and Luna just $0.10/$0.50. OpenAI claims Sol makes about half as many factual mistakes as its predecessor.
Key Points
GPT-6 Sol: $2 input / $10 output per million tokens, down from $4/$20
GPT-6 Luna: $0.10 / $0.50, down from $0.20 / $1.20
On AutomationBench, Sol (xhigh) scored 33.2% at $0.27 per task, above Claude Opus 5 (max) at 26.9%
Sol hits 68.8% on DeepSWE v1.1, within 1.1 points of Fable 5 at roughly 80% lower cost
Prompt caching upgrades give 90% discounts on cached reads; GitHub reports 50% fewer uncached prompt tokens
Why It Matters
Luna at ten cents per million input tokens makes high-volume extraction and classification close to free. Benchmarks are vendor-reported, so run your own evals before switching.
Quick Facts
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