Mistral NeMo and Grok 2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral NeMo shipped 379 days before Grok 2.5, so benchmark comparisons should account for the intervening progress.

Mistral NeMo is open weight, while Grok 2.5 is proprietary.

Direct benchmark comparisons are unavailable — Mistral NeMo and Grok 2.5 don't publish scores on any of the same benchmarks.