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OpenAI Launches GPT-6 Sol and Luna at About Half the Price of Predecessors

Sep 23, 2026
The Deep View
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Summary

OpenAI launches GPT-6 Sol and Luna at roughly half the prior generation’s price, with Sol costing $2 per million input tokens and $10 per million output tokens while claiming benchmark wins over Claude Opus 5.

Key Points

  • OpenAI launches GPT-6 Sol and GPT-6 Luna, models priced about 50% below their predecessors per million tokens.
  • GPT-6 Sol costs $2 per million input tokens and $10 per million output tokens, while Luna costs $0.10 input and $0.50 output.
  • OpenAI says GPT-6 Sol beats prior OpenAI models and Anthropic's Claude Opus 5 on AutomationBench, Agents' Last Exam, and DeepSWE v1.1.

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