Mistral NeMo and Grok‑1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑1.5 shipped 111 days before Mistral NeMo, so benchmark comparisons should account for the intervening progress.

Mistral NeMo is open weight, while Grok‑1.5 is proprietary.

Direct benchmark comparisons are unavailable — Mistral NeMo and Grok‑1.5 don't publish scores on any of the same benchmarks.