Model comparison
MiMo-V2.5-Pro vs Nemotron 3.5 Lightning
MiMo-V2.5-Pro is the stronger model overall, scoring 45.2 to 40.0 on the Noometry Index. Nemotron 3.5 Lightning costs 6.2× less per token, which makes it the better buy when MiMo-V2.5-Pro's lead doesn't matter for your workload.
Last verified . 18 shared benchmarks.
NVIDIASummary
- They share 18 benchmarks with published results for both. MiMo-V2.5-Pro scores higher in 7 categories and Nemotron 3.5 Lightning in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where MiMo-V2.5-Pro leads 65.3 to 48.5.
- Nemotron 3.5 Lightning is cheaper at $0.05 / $0.20 per million input/output tokens, against $0.43 / $0.87 for MiMo-V2.5-Pro.
- MiMo-V2.5-Pro accepts more context: 1.05M tokens versus 262K.
Side by side
| MiMo-V2.5-Pro | Nemotron 3.5 Lightning | |
|---|---|---|
| Provider | Xiaomi | NVIDIA |
| Noometry Index | 45.2 | 40.0 |
| Released | 2026-04-22 | 2026-08-11 |
| Weights | Open | Open |
| Context window | 1.05M | 262K |
| Max output | 131K | 262K |
| Input $ / M tokens | $0.43 | $0.05 |
| Output $ / M tokens | $0.87 | $0.20 |
| Results tracked | 27 | 18 |
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Category by category
Coding MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 47.4 (#60), Nemotron 3.5 Lightning: 40.4 (#141)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Coding | 1503 | 1375 |
| LMArena WebDev | 1479 | — |
| SciCode | 50.2% | — |
| ALE-Bench | 899.8 | — |
Reasoning Too close to call
MiMo-V2.5-Pro: 26.8 (#130), Nemotron 3.5 Lightning: 26.8 (#127)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Hard Prompts | 1488 | 1337 |
| NYT Connections (extended) | 34.4% | — |
| CritPt | 4% | — |
| DTBench | 84.5% | — |
| LMCA | 29.5% | — |
Math MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 40.0 (#96), Nemotron 3.5 Lightning: 37.5 (#155)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Math | 1481 | 1359 |
| ProofBench | 22% | — |
Knowledge MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 42.2 (#98), Nemotron 3.5 Lightning: 37.5 (#154)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Expert | 1503 | 1356 |
Multilingual MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 55.1 (#34), Nemotron 3.5 Lightning: 44.0 (#180)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Non-English | 1449 | 1295 |
| LMArena Chinese | 1507 | 1359 |
| LMArena French | 1488 | 1366 |
| LMArena German | 1458 | 1282 |
| LMArena Japanese | 1412 | 1206 |
| LMArena Korean | 1437 | 1238 |
| LMArena Russian | 1450 | 1253 |
| LMArena Spanish | 1471 | 1345 |
Instruction Following MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 77.5 (#21), Nemotron 3.5 Lightning: 69.6 (#170)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Instruction Following | 1477 | 1318 |
Long Context MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 45.4 (#37), Nemotron 3.5 Lightning: 39.9 (#165)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Longer Query | 1483 | 1314 |
Writing & Preference MiMo-V2.5-Pro leads
MiMo-V2.5-Pro: 65.3 (#49), Nemotron 3.5 Lightning: 48.5 (#201)
| Benchmark | MiMo-V2.5-Pro | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Text | 1465 | 1327 |
| LMArena Creative Writing | 1440 | 1254 |
| EQ-Bench Creative Writing | 1493 | 1280 |
| LMArena Multi-Turn | 1477 | 1328 |
| EQ-Bench 4 | 1208 | — |
Frequently asked questions
Is MiMo-V2.5-Pro better than Nemotron 3.5 Lightning?
MiMo-V2.5-Pro is the stronger model overall, scoring 45.2 to 40.0 on the Noometry Index. Nemotron 3.5 Lightning costs 6.2× less per token, which makes it the better buy when MiMo-V2.5-Pro's lead doesn't matter for your workload.
Which is cheaper, MiMo-V2.5-Pro or Nemotron 3.5 Lightning?
Nemotron 3.5 Lightning is cheaper. It lists at $0.05 per million input tokens and $0.20 per million output tokens; MiMo-V2.5-Pro lists at $0.43 and $0.87.
Is MiMo-V2.5-Pro or Nemotron 3.5 Lightning better for coding?
MiMo-V2.5-Pro scores higher on coding benchmarks: 47.4 versus 40.4 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2.5-Pro does, with 1.05M tokens against 262K.
How many benchmarks do MiMo-V2.5-Pro and Nemotron 3.5 Lightning share?
18 benchmarks have published results for both models. MiMo-V2.5-Pro has 27 scored results on Noometry and Nemotron 3.5 Lightning has 18.