Model comparison
Mercury 2.5 vs MiMo-V2.5-Pro
MiMo-V2.5-Pro is the stronger model overall, scoring 45.2 to 33.5 on the Noometry Index. Mercury 2.5 costs 8.1× less per token, which makes it the better buy when MiMo-V2.5-Pro's lead doesn't matter for your workload.
Last verified . 4 shared benchmarks.
Summary
- They share 4 benchmarks with published results for both. Mercury 2.5 scores higher in 0 categories and MiMo-V2.5-Pro in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2.5-Pro leads 40.0 to 23.3.
- The biggest single-benchmark swing is ProofBench: 3% for Mercury 2.5 and 22% for MiMo-V2.5-Pro.
- Mercury 2.5 is cheaper at $0.04 / $0.15 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 260K.
- MiMo-V2.5-Pro has downloadable open weights; the other is API-only.
Side by side
| Mercury 2.5 | MiMo-V2.5-Pro | |
|---|---|---|
| Provider | Inception | Xiaomi |
| Noometry Index | 33.5 | 45.2 |
| Released | 2026-09-08 | 2026-04-22 |
| Weights | Proprietary | Open |
| Context window | 260K | 1.05M |
| Max output | 66K | 131K |
| Input $ / M tokens | $0.04 | $0.43 |
| Output $ / M tokens | $0.15 | $0.87 |
| Results tracked | 4 | 27 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding MiMo-V2.5-Pro leads
Mercury 2.5: 39.5 (#156), MiMo-V2.5-Pro: 47.4 (#60)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| SciCode | 38.5% | 50.2% |
| ALE-Bench | 301.65 | 899.8 |
| LMArena WebDev | — | 1479 |
| LMArena Coding | — | 1503 |
Reasoning MiMo-V2.5-Pro leads
Mercury 2.5: 22.4 (#193), MiMo-V2.5-Pro: 26.8 (#130)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| CritPt | 0% | 4% |
| NYT Connections (extended) | — | 34.4% |
| LMArena Hard Prompts | — | 1488 |
| DTBench | — | 84.5% |
| LMCA | — | 29.5% |
Math MiMo-V2.5-Pro leads
Mercury 2.5: 23.3 (#272), MiMo-V2.5-Pro: 40.0 (#96)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| ProofBench | 3% | 22% |
| LMArena Math | — | 1481 |
Knowledge Not comparable
Mercury 2.5: —, MiMo-V2.5-Pro: 42.2 (#98)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Expert | — | 1503 |
Multilingual Not comparable
Mercury 2.5: —, MiMo-V2.5-Pro: 55.1 (#34)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Non-English | — | 1449 |
| LMArena Chinese | — | 1507 |
| LMArena French | — | 1488 |
| LMArena German | — | 1458 |
| LMArena Japanese | — | 1412 |
| LMArena Korean | — | 1437 |
| LMArena Russian | — | 1450 |
| LMArena Spanish | — | 1471 |
Instruction Following Not comparable
Mercury 2.5: —, MiMo-V2.5-Pro: 77.5 (#21)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Instruction Following | — | 1477 |
Long Context Not comparable
Mercury 2.5: —, MiMo-V2.5-Pro: 45.4 (#37)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Longer Query | — | 1483 |
Writing & Preference Not comparable
Mercury 2.5: —, MiMo-V2.5-Pro: 65.3 (#49)
| Benchmark | Mercury 2.5 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Text | — | 1465 |
| LMArena Creative Writing | — | 1440 |
| EQ-Bench Creative Writing | — | 1493 |
| EQ-Bench 4 | — | 1208 |
| LMArena Multi-Turn | — | 1477 |
Frequently asked questions
Is Mercury 2.5 better than MiMo-V2.5-Pro?
MiMo-V2.5-Pro is the stronger model overall, scoring 45.2 to 33.5 on the Noometry Index. Mercury 2.5 costs 8.1× 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, Mercury 2.5 or MiMo-V2.5-Pro?
Mercury 2.5 is cheaper. It lists at $0.04 per million input tokens and $0.15 per million output tokens; MiMo-V2.5-Pro lists at $0.43 and $0.87.
Is Mercury 2.5 or MiMo-V2.5-Pro better for coding?
MiMo-V2.5-Pro scores higher on coding benchmarks: 47.4 versus 39.5 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2.5-Pro does, with 1.05M tokens against 260K.
How many benchmarks do Mercury 2.5 and MiMo-V2.5-Pro share?
4 benchmarks have published results for both models. Mercury 2.5 has 4 scored results on Noometry and MiMo-V2.5-Pro has 27.