Model comparison
Mercury 2.5 vs MiMo-V2.6-Pro
MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 33.5 on the Noometry Index. Mercury 2.5 costs 8.1× less per token, which makes it the better buy when MiMo-V2.6-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-V2.6-Pro in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2.6-Pro leads 54.5 to 23.3.
- The biggest single-benchmark swing is ProofBench: 3% for Mercury 2.5 and 70% for MiMo-V2.6-Pro.
- Mercury 2.5 is cheaper at $0.04 / $0.15 per million input/output tokens, against $0.43 / $0.87 for MiMo-V2.6-Pro.
- MiMo-V2.6-Pro accepts more context: 1.05M tokens versus 260K.
- MiMo-V2.6-Pro has downloadable open weights; the other is API-only.
Side by side
| Mercury 2.5 | MiMo-V2.6-Pro | |
|---|---|---|
| Provider | Inception | Xiaomi |
| Noometry Index | 33.5 | 50.3 |
| Released | 2026-09-08 | 2026-09-21 |
| 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 | 19 |
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Category by category
Coding MiMo-V2.6-Pro leads
Mercury 2.5: 39.5 (#156), MiMo-V2.6-Pro: 55.5 (#23)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| SciCode | 38.5% | 60.9% |
| ALE-Bench | 301.65 | 1,158 |
| LMArena WebDev | — | 1629 |
| LMArena Coding | — | 1534 |
Agentic & Tool Use Not comparable
Mercury 2.5: —, MiMo-V2.6-Pro: 37.5 (#35)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| APEX-Agents | — | 59.5% |
Reasoning MiMo-V2.6-Pro leads
Mercury 2.5: 22.4 (#193), MiMo-V2.6-Pro: 43.1 (#50)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| CritPt | 0% | 26.6% |
| LMArena Hard Prompts | — | 1512 |
Math MiMo-V2.6-Pro leads
Mercury 2.5: 23.3 (#272), MiMo-V2.6-Pro: 54.5 (#45)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| ProofBench | 3% | 70% |
| LMArena Math | — | 1494 |
Knowledge Not comparable
Mercury 2.5: —, MiMo-V2.6-Pro: 43.5 (#92)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Expert | — | 1543 |
Multimodal Not comparable
Mercury 2.5: —, MiMo-V2.6-Pro: 40.8 (#43)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Vision | — | 1264 |
Multilingual Not comparable
Mercury 2.5: —, MiMo-V2.6-Pro: 56.9 (#14)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Non-English | — | 1474 |
| LMArena Chinese | — | 1529 |
| LMArena Russian | — | 1480 |
Instruction Following Not comparable
Mercury 2.5: —, MiMo-V2.6-Pro: 78.2 (#12)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Instruction Following | — | 1493 |
Long Context Not comparable
Mercury 2.5: —, MiMo-V2.6-Pro: 46.0 (#27)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Longer Query | — | 1501 |
Writing & Preference Not comparable
Mercury 2.5: —, MiMo-V2.6-Pro: 66.8 (#33)
| Benchmark | Mercury 2.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Text | — | 1492 |
| LMArena Creative Writing | — | 1468 |
| LMArena Multi-Turn | — | 1464 |
Frequently asked questions
Is Mercury 2.5 better than MiMo-V2.6-Pro?
MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 33.5 on the Noometry Index. Mercury 2.5 costs 8.1× less per token, which makes it the better buy when MiMo-V2.6-Pro's lead doesn't matter for your workload.
Which is cheaper, Mercury 2.5 or MiMo-V2.6-Pro?
Mercury 2.5 is cheaper. It lists at $0.04 per million input tokens and $0.15 per million output tokens; MiMo-V2.6-Pro lists at $0.43 and $0.87.
Is Mercury 2.5 or MiMo-V2.6-Pro better for coding?
MiMo-V2.6-Pro scores higher on coding benchmarks: 55.5 versus 39.5 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2.6-Pro does, with 1.05M tokens against 260K.
How many benchmarks do Mercury 2.5 and MiMo-V2.6-Pro share?
4 benchmarks have published results for both models. Mercury 2.5 has 4 scored results on Noometry and MiMo-V2.6-Pro has 19.