Grok 4.6 vs MiMo V2.6 Flash: Benchmark Comparison
Grok 4.6 has the higher score on 10 of 20 shared benchmarks; MiMo V2.6 Flash leads on 10.
The largest observed score gap is 14.63 pts on SAGE , where MiMo V2.6 Flash leads.
Reported ±1 standard-error ranges overlap on 11 of 20 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 Flash | Gap | Reported uncertainty |
|---|---|---|---|---|
| Vals Index | 52.09% ±1.15 | 53.23% ±1.10 | 1.14 pts | Reported ±1 SE ranges overlap |
| Harvey's Legal Agent Benchmark | 15.83% ±2.65 | 11.25% ±2.54 | 4.58 pts | Reported ±1 SE ranges overlap |
| Legal Research Bench | 48.08% ±3.47 | 37.98% ±3.37 | 10.10 pts | Reported ±1 SE ranges do not overlap |
| EMB | 62.73% ±3.08 | 65.46% ±2.71 | 2.73 pts | Reported ±1 SE ranges overlap |
| Finance Agent (v2) | 53.68% ±0.67 | 56.28% ±0.46 | 2.59 pts | Reported ±1 SE ranges do not overlap |
| Tax Agent Bench | 70.79% ±3.00 | 59.90% ±3.13 | 10.88 pts | Reported ±1 SE ranges do not overlap |
| MedCode | 44.71% ±2.26 | 41.06% ±2.03 | 3.66 pts | Reported ±1 SE ranges overlap |
| MedScribe | 86.53% ±1.96 | 85.28% ±1.99 | 1.26 pts | Reported ±1 SE ranges overlap |
| ProofBench v1.1 | 51.00% ±5.02 | 63.00% ±4.85 | 12.00 pts | Reported ±1 SE ranges do not overlap |
| BioMysteryBench | 72.22% ±0.00 | 69.26% ±0.98 | 2.96 pts | Reported ±1 SE ranges do not overlap |
| MysteryMechanism | 30.63% ±3.10 | 21.62% ±2.77 | 9.01 pts | Reported ±1 SE ranges do not overlap |
| Terminal-Bench Science | 11.43% ±3.83 | 4.29% ±2.44 | 7.14 pts | Reported ±1 SE ranges do not overlap |
| SAGE | 28.90% ±3.08 | 43.53% ±3.43 | 14.63 pts | Reported ±1 SE ranges do not overlap |
| Code Migration | 44.57% ±4.48 | 40.93% ±4.35 | 3.65 pts | Reported ±1 SE ranges overlap |
| IOI | 47.61% ±2.09 | 47.67% ±4.79 | 0.06 pts | Reported ±1 SE ranges 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 | 24.24% ±1.51 | 7.07 pts | Reported ±1 SE ranges do not overlap |
| Vibe Code Bench v1.1 | 76.24% ±3.82 | 78.96% ±4.04 | 2.72 pts | Reported ±1 SE ranges overlap |
| CyberBench v1.1 | 67.68% ±5.87 | 75.36% ±5.42 | 7.68 pts | Reported ±1 SE ranges overlap |
| Public Benefits Bench v1.1 | 66.85% ±1.23 | 67.59% ±1.22 | 0.74 pts | Reported ±1 SE ranges overlap |
Performance by category
| Category | Grok 4.6 average | MiMo V2.6 Flash average |
|---|---|---|
| Legal | 31.95% | 24.62% |
| Finance | 62.40% | 60.55% |
| Healthcare | 65.62% | 63.17% |
| Math | 51.00% | 63.00% |
| Science | 38.09% | 31.72% |
| Education | 28.90% | 43.53% |
| Coding | 37.32% | 38.46% |
| Cyber | 67.68% | 75.36% |
| Social Mobility | 66.85% | 67.59% |
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 Flash cost | Grok 4.6 latency | MiMo V2.6 Flash latency |
|---|---|---|---|---|
| Vals Index | $4.49 | $0.20 | 37m01s | 58m02s |
| Harvey's Legal Agent Benchmark | $4.01 | $0.09 | 45m05s | 17m12s |
| Legal Research Bench | $1.53 | $0.07 | 25m04s | 15m20s |
| EMB | $3.06 | $0.11 | 52m59s | 25m22s |
| Finance Agent (v2) | $1.66 | $0.07 | 16m41s | 7m02s |
| Tax Agent Bench | $0.98 | $0.05 | 10m58s | 17m19s |
| MedCode | N/A | N/A | 2m07s | 93.37s |
| MedScribe | N/A | N/A | 70.94s | 74.48s |
| ProofBench v1.1 | $0.76 | $0.12 | 14m22s | 1h03m |
| BioMysteryBench | $1.23 | $0.05 | 14m18s | 28m28s |
| MysteryMechanism | $1.31 | $0.06 | 27m55s | 35m08s |
| Terminal-Bench Science | $4.82 | $0.24 | 1h18m | 3h59m |
| SAGE | N/A | N/A | 3m22s | 2m16s |
| Code Migration | $14.58 | $0.49 | 1h30m | 3h12m |
| IOI | $8.18 | $0.22 | 3h57m | 1h49m |
| ProgramBench | $16.76 | $0.47 | 4h27m | 3h22m |
| Terminal-Bench 4.0 | $5.07 | $0.22 | 29m27s | 2h25m |
| Vibe Code Bench v1.1 | $4.88 | $0.56 | 25m30s | 50m13s |
| CyberBench v1.1 | $4.07 | $0.05 | 36m52s | 28m22s |
| Public Benefits Bench v1.1 | $0.92 | $0.03 | 25m53s | 20m56s |
Results available only for Grok 4.6
- Vals RSI Index
- LegalBench
- MortgageTax
- TaxEval v2
- GPQA Diamond
- MMLU Pro
- LiveCodeBench
- SkillsBench
- SWE-bench
- Vibe Code Bench 1-100
- Time Horizon Index: KSP
Results available only for MiMo V2.6 Flash
- SRE Bench