LLM-as-a-Verifier boosts DeepSeek past Claude at 1/11th the cost

Azaliamirh · x · 2026-08-18

The LLM-as-a-Verifier framework leverages self-verification to enhance model performance. By sampling 5 solutions with DeepSeek V4 Flash and ranking them, accuracy on Terminal-Bench 2.1 increased from 79% to 88%, outperforming Claude Fable 5 while being 4-11x cheaper. The open-source framework provides fine-grained feedback without additional training.

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