Grok 4.5 vs MiMo-V2.5-Pro
Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Grok 4.5 leads for most workloads by a narrow margin.
Based on BenchLM composite scores, July 2026.
Grok 4.5
75
MiMo-V2.5-Pro
75
Treat this as a split decision. Grok 4.5 makes more sense if agentic is the priority; MiMo-V2.5-Pro is the better fit if you need the larger 1M context window.
Category Breakdown
| Benchmark | Grok 4.5 | Δ | MiMo-V2.5-Pro |
|---|---|---|---|
| Agentic | 83.3 | ← 14.9 | 68.4 |
| Coding | 64.7 | ← 7.5 | 57.2 |
| Knowledge | — | — | 48.0 |
Operational Comparison
Grok 4.5
MiMo-V2.5-Pro
$2 / $6
$null / $null
N/A
N/A
N/A
N/A
500K
1M
Quick Verdict
Treat this as a split decision. Grok 4.5 makes more sense if agentic is the priority; MiMo-V2.5-Pro is the better fit if you need the larger 1M context window.
Grok 4.5 and MiMo-V2.5-Pro finish on the same provisional overall score, so this is less about a single winner and more about where the edge shows up. The provisional headline says tie; the benchmark table is where the real choice happens.
MiMo-V2.5-Pro gives you the larger context window at 1M, compared with 500K for Grok 4.5.
Benchmark Deep Dive
Frequently Asked Questions (3)
Which is better, Grok 4.5 or MiMo-V2.5-Pro?
Grok 4.5 and MiMo-V2.5-Pro are tied on the provisional overall score, so the right pick depends on which category matters most for your use case.
Which is better for coding, Grok 4.5 or MiMo-V2.5-Pro?
Grok 4.5 has the edge for coding in this comparison, averaging 64.7 versus 57.2. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Grok 4.5 or MiMo-V2.5-Pro?
Grok 4.5 has the edge for agentic tasks in this comparison, averaging 83.3 versus 68.4. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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