Grok 4.3 vs MiniMax M3

Pick MiniMax M3 if you want the stronger benchmark profile. Grok 4.3 only becomes the better choice if multimodal & grounded is the priority or you want the stronger reasoning-first profile.

MiniMax M3 finishes one point ahead on BenchLM's provisional leaderboard, 76 to 75. That is enough to call, but not enough to treat as a blowout. This matchup comes down to a few meaningful edges rather than one model dominating the board.

MiniMax M3's sharpest advantage is in coding, where it averages 67 against 47.3. Grok 4.3 does hit back in multimodal & grounded, so the answer changes if that is the part of the workload you care about most.

Grok 4.3 is also the more expensive model on tokens at $1.25 input / $2.50 output per 1M tokens, versus $0.30 input / $1.20 output per 1M tokens for MiniMax M3. That is roughly 2.1x on output cost alone. Grok 4.3 is the reasoning model in the pair, while MiniMax M3 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use.