Model comparison
Grok 4.3 vs MiMo-V2-Pro
Grok 4.3 and MiMo-V2-Pro score almost the same on the Noometry Index (43.8 vs 43.0), so choose on price, context window or the category you care about most.
Last verified . 20 shared benchmarks.
Summary
- They share 20 benchmarks with published results for both. Grok 4.3 scores higher in 4 categories and MiMo-V2-Pro in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.3 leads 35.9 to 22.1.
- The biggest single-benchmark swing is NYT Connections (extended): 55.2% for Grok 4.3 and 25.8% for MiMo-V2-Pro.
- MiMo-V2-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $1.25 / $2.50 for Grok 4.3.
- MiMo-V2-Pro accepts more context: 1.05M tokens versus 1M.
Side by side
| Grok 4.3 | MiMo-V2-Pro | |
|---|---|---|
| Provider | xAI | Xiaomi |
| Noometry Index | 43.8 | 43.0 |
| Released | 2026-04-17 | 2026-03-18 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | 1.05M |
| Max output | 30K | 131K |
| Input $ / M tokens | $1.25 | $0.43 |
| Output $ / M tokens | $2.50 | $0.87 |
| Results tracked | 40 | 23 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding MiMo-V2-Pro leads
Grok 4.3: 41.6 (#121), MiMo-V2-Pro: 43.8 (#83)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena WebDev | 1357 | 1433 |
| LMArena Coding | 1415 | 1476 |
| ALE-Bench | 944.17 | 785.17 |
| SciCode | 47.3% | — |
| WeirdML | 49.9% | — |
Agentic & Tool Use Not comparable
Grok 4.3: 27.7 (#99), MiMo-V2-Pro: —
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| GDP.pdf | 8% | — |
| LMArena Search | 1165 | — |
| Vending-Bench 2 | 35.26 | — |
Reasoning Grok 4.3 leads
Grok 4.3: 35.9 (#68), MiMo-V2-Pro: 22.1 (#206)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| NYT Connections (extended) | 55.2% | 25.8% |
| LMArena Hard Prompts | 1396 | 1457 |
| CritPt | 8% | — |
| Chess Puzzles | 25% | — |
| Thematic Generalization | — | 45.9% |
| DTBench | 90.7% | — |
| LMCA | 38.3% | — |
| Epoch Capabilities Index | 149.16 | — |
| ForecastBench | 60.3 | — |
Math Grok 4.3 leads
Grok 4.3: 46.0 (#74), MiMo-V2-Pro: 39.5 (#102)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena Math | 1388 | 1447 |
| FrontierMath (Tiers 1-3) | 42.8% | — |
| FrontierMath Tier 4 | 14.6% | — |
| OTIS Mock AIME 2024-2025 | 93.3% | — |
| ProofBench | 11% | — |
Knowledge Grok 4.3 leads
Grok 4.3: 52.5 (#62), MiMo-V2-Pro: 41.4 (#111)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena Expert | 1385 | 1478 |
| GPQA Diamond | 88.8% | — |
| SimpleQA Verified | 33.2% | — |
Multimodal Not comparable
Grok 4.3: 31.6 (#104), MiMo-V2-Pro: —
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena Vision | 1229 | — |
| Blueprint-Bench 2 | 0% | — |
Multilingual MiMo-V2-Pro leads
Grok 4.3: 50.5 (#120), MiMo-V2-Pro: 52.7 (#81)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena Non-English | 1385 | 1416 |
| LMArena Chinese | 1422 | 1456 |
| LMArena French | 1412 | 1469 |
| LMArena German | 1395 | 1417 |
| LMArena Japanese | 1379 | 1366 |
| LMArena Korean | 1356 | 1400 |
| LMArena Russian | 1399 | 1427 |
| LMArena Spanish | 1398 | 1457 |
Instruction Following MiMo-V2-Pro leads
Grok 4.3: 72.1 (#140), MiMo-V2-Pro: 76.0 (#49)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena Instruction Following | 1366 | 1445 |
Long Context Too close to call
Grok 4.3: 42.5 (#123), MiMo-V2-Pro: 41.5 (#138)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena Longer Query | 1393 | 1455 |
| CL-bench | — | 15.7% |
| CL-bench Life | — | 6.9% |
Writing & Preference MiMo-V2-Pro leads
Grok 4.3: 58.5 (#118), MiMo-V2-Pro: 62.8 (#70)
| Benchmark | Grok 4.3 | MiMo-V2-Pro |
|---|---|---|
| LMArena Text | 1397 | 1436 |
| LMArena Creative Writing | 1380 | 1415 |
| LMArena Multi-Turn | 1406 | 1456 |
| EQ-Bench 4 | 1075 | — |
Frequently asked questions
Is Grok 4.3 better than MiMo-V2-Pro?
Grok 4.3 and MiMo-V2-Pro score almost the same on the Noometry Index (43.8 vs 43.0), so choose on price, context window or the category you care about most.
Which is cheaper, Grok 4.3 or MiMo-V2-Pro?
MiMo-V2-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; Grok 4.3 lists at $1.25 and $2.50.
Is Grok 4.3 or MiMo-V2-Pro better for coding?
MiMo-V2-Pro scores higher on coding benchmarks: 43.8 versus 41.6 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2-Pro does, with 1.05M tokens against 1M.
How many benchmarks do Grok 4.3 and MiMo-V2-Pro share?
20 benchmarks have published results for both models. Grok 4.3 has 40 scored results on Noometry and MiMo-V2-Pro has 23.