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The DecoderJuly 31, 2026· 1 min read

New Deepseek Flash model matches OpenAI's GPT-5.6 Luna at roughly 60 percent lower cost

Deepseek's Flash model has been updated to match the performance of OpenAI's GPT-5.6 Luna at a significantly lower cost. This update brings the Flash model's score to 50 on the Artificial Analysis Intelligence Index.

What happened

Deepseek has released an update to its Flash model, boosting its performance by 10 points to 50 on the Artificial Analysis Intelligence Index. This puts it on par with OpenAI's GPT-5.6 Luna, but at a cost that's roughly 60% lower. The updated model is known as the '0731' version.

Why it matters

For businesses that rely on AI for tasks such as data analysis or content generation, this update could be a cost-effective solution. It may allow you to achieve similar results without breaking the bank. However, the actual performance difference between the two models may still be significant.

The takeaway

You may want to consider evaluating the Deepseek Flash model as an alternative to OpenAI's GPT-5.6 Luna, especially if budget is a concern. Be sure to test its performance in your specific use case before making a decision.

Read the original at The Decoder

Our plain-English take, written from public reporting for operational business owners. Always read the original for full context.

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