GPT-6 Sol and Luna reportedly launch with API prices 50% below GPT-5.6
A post lists Sol at $2 per million input tokens and $10 per million output tokens, and says free users get Luna in the desktop app.
TLDR
A September 22, 2026 post says OpenAI launched GPT-6 Sol and Luna, with availability planned for that night in ChatGPT Work, Codex and the API. It reports a 50% API price cut versus GPT-5.6, listing Sol at $2 per million input tokens and $10 per million output tokens. The post says free users get Luna in the desktop app. It also relays OpenAI’s claim that Sol at “xhigh” beats Claude Opus 5 at “max” on AutomationBench at 9% of the cost per task.
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