Claude Instant 1.2 and Gemma 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Instant 1.2 shipped 581 days before Gemma 3, so benchmark comparisons should account for the intervening progress.

Claude Instant 1.2 is proprietary, while Gemma 3 is open weight.

Direct benchmark comparisons are unavailable — Claude Instant 1.2 and Gemma 3 don't publish scores on any of the same benchmarks.