OpenAI launches GPT-6.1 Sol, claiming near-Astra performance at one-fifth of Astra’s standard API token prices
OpenAI says the model improves on GPT-6 Sol in coding, computer use and complex professional work. It lists cached input at $0.10 per million tokens.
TLDR
OpenAI says GPT-6.1 Sol approaches GPT-6 Astra on several benchmarks while costing one-fifth as much for standard API input and output tokens. It lists cached input at $0.10 per million tokens—95% less than standard input pricing and 50% less than GPT-6 Sol’s cached input pricing. OpenAI said the model was available from September 29, 2026, in ChatGPT Work and Codex for Plus, Pro, Business, Enterprise and Edu users.
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