Model comparison
Grok 4.1 vs Yi-1.5-34B
Grok 4.1 is the stronger model overall, scoring 40.8 to 30.2 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Grok 4.1 scores higher in 8 categories and Yi-1.5-34B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 4.1 leads 62.6 to 37.6.
- Yi-1.5-34B has downloadable open weights; the other is API-only.
Side by side
| Grok 4.1 | Yi-1.5-34B | |
|---|---|---|
| Provider | xAI | 01.AI |
| Noometry Index | 40.8 | 30.2 |
| Released | 2025-11-17 | 2024-05-13 |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 19 | 21 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Grok 4.1 leads
Grok 4.1: 33.4 (#246), Yi-1.5-34B: 31.9 (#267)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Coding | 1445 | 1169 |
| LMArena WebDev | 1214 | — |
| BigCodeBench Instruct | — | 33.9% |
| BigCodeBench Complete | — | 43.8% |
Agentic & Tool Use Not comparable
Grok 4.1: 33.8 (#47), Yi-1.5-34B: —
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| Cybench | 39% | — |
Reasoning Grok 4.1 leads
Grok 4.1: 28.3 (#91), Yi-1.5-34B: 21.5 (#195)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Hard Prompts | 1436 | 1160 |
Math Grok 4.1 leads
Grok 4.1: 36.2 (#124), Yi-1.5-34B: 25.3 (#248)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Math | 1422 | 1182 |
| MATH Level 5 | — | 25.5% |
Knowledge Grok 4.1 leads
Grok 4.1: 38.9 (#129), Yi-1.5-34B: 14.8 (#290)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Expert | 1417 | 1144 |
| GPQA Diamond | — | 32% |
Multilingual Grok 4.1 leads
Grok 4.1: 53.6 (#64), Yi-1.5-34B: 32.5 (#251)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | 1425 | 1121 |
| LMArena Chinese | 1464 | 1213 |
| LMArena French | 1448 | 1155 |
| LMArena German | 1447 | 1111 |
| LMArena Japanese | 1396 | 1021 |
| LMArena Korean | 1407 | 1005 |
| LMArena Russian | 1434 | 1091 |
| LMArena Spanish | 1438 | 1120 |
Instruction Following Grok 4.1 leads
Grok 4.1: 74.0 (#106), Yi-1.5-34B: 59.4 (#252)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | 1400 | 1139 |
Long Context Grok 4.1 leads
Grok 4.1: 43.2 (#96), Yi-1.5-34B: 34.6 (#243)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | 1416 | 1144 |
Writing & Preference Grok 4.1 leads
Grok 4.1: 62.6 (#71), Yi-1.5-34B: 37.6 (#252)
| Benchmark | Grok 4.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Text | 1437 | 1173 |
| LMArena Creative Writing | 1411 | 1135 |
| LMArena Multi-Turn | 1438 | 1153 |
Frequently asked questions
Is Grok 4.1 better than Yi-1.5-34B?
Grok 4.1 is the stronger model overall, scoring 40.8 to 30.2 on the Noometry Index.
Is Grok 4.1 or Yi-1.5-34B better for coding?
Grok 4.1 scores higher on coding benchmarks: 33.4 versus 31.9 in the Noometry coding category.
How many benchmarks do Grok 4.1 and Yi-1.5-34B share?
17 benchmarks have published results for both models. Grok 4.1 has 19 scored results on Noometry and Yi-1.5-34B has 21.