Grok 4.6 vs MiMo V2.6 Pro: Benchmark Comparison
Grok 4.6 has the higher score on 8 of 19 shared benchmarks; MiMo V2.6 Pro leads on 11.
The largest observed score gap is 19.00 pts on ProofBench v1.1 , where MiMo V2.6 Pro leads.
Reported ±1 standard-error ranges overlap on 10 of 19 shared benchmarks with comparable uncertainty data. This is not a pairwise statistical significance test.
Shared benchmark results
Scores and reported standard errors come from the latest visible Vals benchmark version available for both models.
| Benchmark | Grok 4.6 | MiMo V2.6 Pro | Gap | Reported uncertainty |
|---|---|---|---|---|
| Vals Index | 52.09% ±1.15 | 55.20% ±1.18 | 3.11 pts | Reported ±1 SE ranges do not overlap |
| Harvey's Legal Agent Benchmark | 15.83% ±2.65 | 10.83% ±2.45 | 5.00 pts | Reported ±1 SE ranges overlap |
| Legal Research Bench | 48.08% ±3.47 | 47.12% ±3.47 | 0.96 pts | Reported ±1 SE ranges overlap |
| EMB | 62.73% ±3.08 | 62.86% ±3.14 | 0.13 pts | Reported ±1 SE ranges overlap |
| Finance Agent (v2) | 53.68% ±0.67 | 57.34% ±0.57 | 3.66 pts | Reported ±1 SE ranges do not overlap |
| Tax Agent Bench | 70.79% ±3.00 | 64.94% ±3.21 | 5.85 pts | Reported ±1 SE ranges overlap |
| MedCode | 44.71% ±2.26 | 44.97% ±2.10 | 0.26 pts | Reported ±1 SE ranges overlap |
| MedScribe | 86.53% ±1.96 | 88.31% ±1.94 | 1.77 pts | Reported ±1 SE ranges overlap |
| ProofBench v1.1 | 51.00% ±5.02 | 70.00% ±4.61 | 19.00 pts | Reported ±1 SE ranges do not overlap |
| MysteryMechanism | 30.63% ±3.10 | 15.31% ±2.42 | 15.32 pts | Reported ±1 SE ranges do not overlap |
| Terminal-Bench Science | 11.43% ±3.83 | 2.86% ±2.01 | 8.57 pts | Reported ±1 SE ranges do not overlap |
| SAGE | 28.90% ±3.08 | 45.05% ±3.40 | 16.15 pts | Reported ±1 SE ranges do not overlap |
| Code Migration | 44.57% ±4.48 | 43.01% ±4.32 | 1.56 pts | Reported ±1 SE ranges overlap |
| IOI | 47.61% ±2.09 | 39.33% ±2.41 | 8.28 pts | Reported ±1 SE ranges do not overlap |
| ProgramBench | 1.00% ±0.70 | 0.50% ±0.50 | 0.50 pts | Reported ±1 SE ranges overlap |
| Terminal-Bench 4.0 | 17.17% ±1.34 | 31.31% ±3.07 | 14.14 pts | Reported ±1 SE ranges do not overlap |
| Vibe Code Bench v1.1 | 76.24% ±3.82 | 85.22% ±3.39 | 8.98 pts | Reported ±1 SE ranges do not overlap |
| CyberBench v1.1 | 67.68% ±5.87 | 72.86% ±5.50 | 5.18 pts | Reported ±1 SE ranges overlap |
| Public Benefits Bench v1.1 | 66.85% ±1.23 | 68.94% ±1.20 | 2.10 pts | Reported ±1 SE ranges overlap |
Performance by category
| Category | Grok 4.6 average | MiMo V2.6 Pro average |
|---|---|---|
| Legal | 31.95% | 28.97% |
| Finance | 62.40% | 61.71% |
| Healthcare | 65.62% | 66.64% |
| Math | 51.00% | 70.00% |
| Science | 21.03% | 9.09% |
| Education | 28.90% | 45.05% |
| Coding | 37.32% | 39.88% |
| Cyber | 67.68% | 72.86% |
| Social Mobility | 66.85% | 68.94% |
Cost and latency
Cost per test appears only where the benchmark reports it for both models. Latency is the measured completion time for that benchmark.
| Benchmark | Grok 4.6 cost | MiMo V2.6 Pro cost | Grok 4.6 latency | MiMo V2.6 Pro latency |
|---|---|---|---|---|
| Vals Index | $4.49 | $0.41 | 37m01s | 1h07m |
| Harvey's Legal Agent Benchmark | $4.01 | $0.22 | 45m05s | 25m49s |
| Legal Research Bench | $1.53 | $0.18 | 25m04s | 30m16s |
| EMB | $3.06 | $0.33 | 52m59s | 55m14s |
| Finance Agent (v2) | $1.66 | $0.20 | 16m41s | 10m48s |
| Tax Agent Bench | $0.98 | $0.13 | 10m58s | 25m48s |
| MedCode | N/A | N/A | 2m07s | 2m57s |
| MedScribe | N/A | N/A | 70.94s | 2m53s |
| ProofBench v1.1 | $0.76 | $0.25 | 14m22s | 1h02m |
| MysteryMechanism | $1.31 | $0.15 | 27m55s | 44m00s |
| Terminal-Bench Science | $4.82 | $0.62 | 1h18m | 3h12m |
| SAGE | N/A | N/A | 3m22s | 3m40s |
| Code Migration | $14.58 | $0.69 | 1h30m | 2h49m |
| IOI | $8.18 | $0.84 | 3h57m | 2h26m |
| ProgramBench | $16.76 | $0.73 | 4h27m | 3h00m |
| Terminal-Bench 4.0 | $5.07 | $0.50 | 29m27s | 2h42m |
| Vibe Code Bench v1.1 | $4.88 | $1.04 | 25m30s | 1h01m |
| CyberBench v1.1 | $4.07 | $0.09 | 36m52s | 27m41s |
| Public Benefits Bench v1.1 | $0.92 | $0.08 | 25m53s | 37m14s |
Results available only for Grok 4.6
- Vals RSI Index
- LegalBench
- MortgageTax
- TaxEval v2
- BioMysteryBench
- GPQA Diamond
- MMLU Pro
- LiveCodeBench
- SkillsBench
- SWE-bench
- Vibe Code Bench 1-100
- Time Horizon Index: KSP
Results available only for MiMo V2.6 Pro
- SRE Bench