Model comparison
Grok 4.20 Multi-Agent vs MiMo-V2.5-Pro
Grok 4.20 Multi-Agent and MiMo-V2.5-Pro score almost the same on the Noometry Index (45.5 vs 44.8), so choose on price, context window or the category you care about most.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 1 category and MiMo-V2.5-Pro in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 42.4 to 25.9.
- The biggest single-benchmark swing is NYT Connections (extended): 89.6% for Grok 4.20 Multi-Agent and 34.4% for MiMo-V2.5-Pro.
- MiMo-V2.5-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 Multi-Agent.
- MiMo-V2.5-Pro accepts more context: 1.05M tokens versus 1M.
- MiMo-V2.5-Pro has downloadable open weights; the other is API-only.
Side by side
| Grok 4.20 Multi-Agent | MiMo-V2.5-Pro | |
|---|---|---|
| Provider | xAI | Xiaomi |
| Noometry Index | 45.5 | 44.8 |
| Released | 2026-03-09 | 2026-04-22 |
| Weights | Proprietary | Open |
| 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 | 20 | 27 |
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Category by category
Coding MiMo-V2.5-Pro leads
Grok 4.20 Multi-Agent: 42.4 (#91), MiMo-V2.5-Pro: 47.0 (#58)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Coding | 1458 | 1502 |
| LMArena WebDev | — | 1477 |
| SciCode | — | 50.2% |
| ALE-Bench | — | 899.8 |
Agentic & Tool Use Not comparable
Grok 4.20 Multi-Agent: —, MiMo-V2.5-Pro: —
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Search | 1204 | — |
Reasoning Grok 4.20 Multi-Agent leads
Grok 4.20 Multi-Agent: 42.4 (#44), MiMo-V2.5-Pro: 25.9 (#124)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| NYT Connections (extended) | 89.6% | 34.4% |
| LMArena Hard Prompts | 1448 | 1487 |
| CritPt | — | 4% |
| DTBench | — | 84.5% |
| LMCA | — | 29.5% |
Math MiMo-V2.5-Pro leads
Grok 4.20 Multi-Agent: 36.6 (#106), MiMo-V2.5-Pro: 38.6 (#84)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Math | 1441 | 1480 |
| ProofBench | — | 22% |
Knowledge MiMo-V2.5-Pro leads
Grok 4.20 Multi-Agent: 39.7 (#116), MiMo-V2.5-Pro: 41.5 (#100)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Expert | 1445 | 1501 |
Multimodal Not comparable
Grok 4.20 Multi-Agent: 39.8 (#44), MiMo-V2.5-Pro: —
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Vision | 1259 | — |
Multilingual Too close to call
Grok 4.20 Multi-Agent: 54.6 (#40), MiMo-V2.5-Pro: 55.3 (#33)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Non-English | 1440 | 1449 |
| LMArena Chinese | 1475 | 1507 |
| LMArena French | 1467 | 1489 |
| LMArena German | 1456 | 1455 |
| LMArena Japanese | 1405 | 1418 |
| LMArena Korean | 1416 | 1436 |
| LMArena Russian | 1457 | 1450 |
| LMArena Spanish | 1447 | 1470 |
Instruction Following MiMo-V2.5-Pro leads
Grok 4.20 Multi-Agent: 75.0 (#80), MiMo-V2.5-Pro: 77.6 (#21)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Instruction Following | 1420 | 1477 |
Long Context MiMo-V2.5-Pro leads
Grok 4.20 Multi-Agent: 43.7 (#84), MiMo-V2.5-Pro: 45.4 (#38)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Longer Query | 1430 | 1482 |
Writing & Preference MiMo-V2.5-Pro leads
Grok 4.20 Multi-Agent: 64.1 (#57), MiMo-V2.5-Pro: 65.5 (#47)
| Benchmark | Grok 4.20 Multi-Agent | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Text | 1450 | 1465 |
| LMArena Creative Writing | 1435 | 1440 |
| LMArena Multi-Turn | 1451 | 1477 |
| EQ-Bench Creative Writing | — | 1493 |
| EQ-Bench 4 | — | 1208 |
Frequently asked questions
Is Grok 4.20 Multi-Agent better than MiMo-V2.5-Pro?
Grok 4.20 Multi-Agent and MiMo-V2.5-Pro score almost the same on the Noometry Index (45.5 vs 44.8), so choose on price, context window or the category you care about most.
Which is cheaper, Grok 4.20 Multi-Agent or MiMo-V2.5-Pro?
MiMo-V2.5-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.
Is Grok 4.20 Multi-Agent or MiMo-V2.5-Pro better for coding?
MiMo-V2.5-Pro scores higher on coding benchmarks: 47.0 versus 42.4 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2.5-Pro does, with 1.05M tokens against 1M.
How many benchmarks do Grok 4.20 Multi-Agent and MiMo-V2.5-Pro share?
18 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and MiMo-V2.5-Pro has 27.