DeepSeek-V4 Pro benchmark: Top performance at ultra-low cost

zainhas · x · 2026-08-15

An analysis by Together AI reveals that DeepSeek-V4 Pro 0813 achieves an 88.5% pass@4 score on DeepSWE software engineering tasks, outperforming GPT-5.6 Sol and Fable 5. It costs only $0.24 per task, making it 35x cheaper than Sol and 90x cheaper than Fable.

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