Model comparison
Claude Haiku 5.5 vs MiMo-V2.5
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 43.4 on the Noometry Index.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. Claude Haiku 5.5 scores higher in 5 categories and MiMo-V2.5 in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 36.8.
- MiMo-V2.5 is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.10 / $0.50 for Claude Haiku 5.5.
- MiMo-V2.5 accepts more context: 1.05M tokens versus 1M.
- MiMo-V2.5 has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 5.5 | MiMo-V2.5 | |
|---|---|---|
| Provider | Anthropic | Xiaomi |
| Noometry Index | 49.5 | 43.4 |
| Released | 2026-10-07 | 2026-04-22 |
| Weights | Proprietary | Open |
| Context window | 1M | 1.05M |
| Max output | 128K | 131K |
| Input $ / M tokens | $0.10 | $0.14 |
| Output $ / M tokens | $0.50 | $0.28 |
| Results tracked | 9 | 23 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), MiMo-V2.5: 43.9 (#81)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| LMArena WebDev | 1587 | 1438 |
| SciCode | — | 43.1% |
| LMArena Coding | — | 1469 |
| ALE-Bench | — | 513.95 |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), MiMo-V2.5: 28.6 (#101)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| NYT Connections (extended) | 65.7% | — |
| CritPt | — | 3.7% |
| LMArena Hard Prompts | — | 1450 |
| Mystery Game Puzzles | 30% | — |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), MiMo-V2.5: 36.8 (#163)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| ProofBench | — | 16% |
| LMArena Math | — | 1436 |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), MiMo-V2.5: 40.8 (#115)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| SimpleQA Verified | 23.8% | — |
| LMArena Expert | — | 1460 |
Multimodal Claude Haiku 5.5 leads
Claude Haiku 5.5: 43.7 (#21), MiMo-V2.5: 39.8 (#54)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| LMArena Vision | — | 1247 |
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, MiMo-V2.5: 51.9 (#99)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1468 |
| LMArena French | — | 1447 |
| LMArena German | — | 1421 |
| LMArena Japanese | — | 1306 |
| LMArena Korean | — | 1363 |
| LMArena Russian | — | 1395 |
| LMArena Spanish | — | 1416 |
Instruction Following Not comparable
Claude Haiku 5.5: —, MiMo-V2.5: 75.5 (#60)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| LMArena Instruction Following | — | 1434 |
Long Context Not comparable
Claude Haiku 5.5: —, MiMo-V2.5: 44.2 (#73)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| LMArena Longer Query | — | 1445 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, MiMo-V2.5: 61.6 (#86)
| Benchmark | Claude Haiku 5.5 | MiMo-V2.5 |
|---|---|---|
| LMArena Text | — | 1428 |
| LMArena Creative Writing | — | 1393 |
| LMArena Multi-Turn | — | 1445 |
Frequently asked questions
Is Claude Haiku 5.5 better than MiMo-V2.5?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 43.4 on the Noometry Index.
Which is cheaper, Claude Haiku 5.5 or MiMo-V2.5?
MiMo-V2.5 is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Claude Haiku 5.5 lists at $0.10 and $0.50.
Is Claude Haiku 5.5 or MiMo-V2.5 better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 43.9 in the Noometry coding category.
Which has the bigger context window?
MiMo-V2.5 does, with 1.05M tokens against 1M.
How many benchmarks do Claude Haiku 5.5 and MiMo-V2.5 share?
1 benchmark has published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and MiMo-V2.5 has 23.