Mixtral 8×7B and o3-mini-high don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mixtral 8×7B shipped 420 days before o3-mini-high, so benchmark comparisons should account for the intervening progress.

Mixtral 8×7B is open weight, while o3-mini-high is proprietary.

Direct benchmark comparisons are unavailable — Mixtral 8×7B and o3-mini-high don't publish scores on any of the same benchmarks.