We tested GPT-5.6 vs Claude Sonnet 5 on 5 real Tamil-nadu-business prompts. Here’s what won.
Day-one test results. Same prompts, both models, real workflows from jewellery shops and WhatsApp DMs. The winner isn’t the one we expected.
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We tested GPT-5.6 vs Claude Sonnet 5. The winner wasn't who we expected.
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Nav & Sujal <[email protected]>
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We tested GPT-5.6 vs Claude Sonnet 5. The winner wasn’t who we expected.
Hey,
GPT-5.6 dropped on Wednesday. Claude Sonnet 5 was already in our stack. We ran the same 5 prompts on both  same model temperature, same system prompt, real prompts from our jewellery and D2C clients.
The winner on reasoning was GPT-5.6. The winner on writing style (and the one we’re keeping) was Claude Sonnet 5. The full breakdown  with the actual prompts and outputs  is below.
// nav & sujal · 2BFT · Vaniyambadi
Day-one test results. Same prompts, both models, real workflows from jewellery shops and WhatsApp DMs. The winner isn’t the one we expected.
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