Claude Instant 1.2 and Grok‑1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Instant 1.2 shipped 86 days before Grok‑1, so benchmark comparisons should account for the intervening progress.

Claude Instant 1.2 is proprietary, while Grok‑1 is open weight.

Direct benchmark comparisons are unavailable — Claude Instant 1.2 and Grok‑1 don't publish scores on any of the same benchmarks.