modelgrep

MiniMax: MiniMax M3 vs xAI: Grok 4.5

xAI: Grok 4.5 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.

MetricMiniMax: MiniMax M3xAI: Grok 4.5
Intelligence Index44.453.8
Coding Index58.672.4
GPQA Diamond93%93%
Design Arena Elo1301
Speed (tokens/sec)6374
Latency848ms655ms
Input price /M$0.300$2.00
Output price /M$1.20$6.00
Context window1.0M500K
CapabilitiesReasoningToolsJSONVisionReasoningToolsJSONVision