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SONTAIRO / AI ModelsGPT-5.6 Luna vs. Claude Sonnet 5: Quality per Dollar

AI ModelsJuly 31, 2026

GPT-5.6 Luna vs. Claude Sonnet 5: Quality per Dollar

Our live production benchmark found Luna matched Sonnet on all three correctness checks while responding 42% faster and costing about 27× less per task.

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GPT-5.6 Luna vs. Claude Sonnet 5: Quality per Dollar