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GPT-6.1 Sol reportedly matches GPT-6 Astra at one-fifth the cost

Cline added GPT-6.1 Sol, and the model reportedly reaches GPT-6 Astra-level results on DeepSWE v1.1 at roughly one-fifth the cost. That puts pressure on the premium model’s pricing advantage, especially for coding workloads where usage costs scale quickly.

Internal evaluations also reported Sol as 3× more efficient than Opus 5.5 and 2.5× more efficient than Sonnet 5.5. Separate document-OCR testing found its table parsing comparable to GPT-6 Astra.

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GPT-6.1 Sol was announced as integrated into Cline with reported GPT-6 Astra-level DeepSWE v1.1 performance at roughly one-fifth the cost.

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Internal evaluations reported GPT-6.1 Sol at 3× the efficiency of Opus 5.5 and 2.5× the efficiency of Sonnet 5.5.

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Document-OCR testing reported GPT-6.1 Sol had similar table-parsing performance to GPT-6 Astra.

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