DeepSeek V2.5 (Revised) and Grok Code Fast 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V2.5 (Revised) shipped 270 days before Grok Code Fast 1, so benchmark comparisons should account for the intervening progress.

DeepSeek V2.5 (Revised) is open weight, while Grok Code Fast 1 is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V2.5 (Revised) and Grok Code Fast 1 don't publish scores on any of the same benchmarks.