Model comparison
GLM-5.2 vs Yi-Lightning
GLM-5.2 is the stronger model overall, scoring 51.1 to 37.1 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. GLM-5.2 scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where GLM-5.2 leads 51.3 to 27.4.
- GLM-5.2 has downloadable open weights; the other is API-only.
Side by side
| GLM-5.2 | Yi-Lightning | |
|---|---|---|
| Provider | Z.ai (Zhipu) | 01.AI |
| Noometry Index | 51.1 | 37.1 |
| Released | 2026-06-13 | 2024-12-02 |
| Weights | Open | Proprietary |
| Context window | 1M | — |
| Max output | 131K | — |
| Input $ / M tokens | $1.40 | — |
| Output $ / M tokens | $4.40 | — |
| Results tracked | 51 | 18 |
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Category by category
Coding GLM-5.2 leads
GLM-5.2: 51.3 (#41), Yi-Lightning: 27.4 (#320)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1485 | 1312 |
| SWE-bench Verified | 78.7% | — |
| DeepSWE | 43.8% | — |
| FrontierCode | 24.5% | — |
| Aider Polyglot | — | 12.9% |
| LMArena WebDev | 1603 | — |
| SciCode | 50.5% | — |
| WeirdML | 70.1% | — |
| ALE-Bench | 1,047 | — |
Agentic & Tool Use Not comparable
GLM-5.2: 32.4 (#63), Yi-Lightning: —
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| APEX-Agents | 45.2% | — |
| τ²-bench Banking | 37.1% | — |
| PostTrainBench | 31.7% | — |
| GBAEval | 0% | — |
| Vending-Bench 2 | 8,314 | — |
Reasoning GLM-5.2 leads
GLM-5.2: 42.3 (#52), Yi-Lightning: 25.9 (#139)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1480 | 1302 |
| ARC-AGI-2 | 22.8% | — |
| SimpleBench | 58.8% | — |
| Kagi LLM Benchmark | 62.6% | — |
| NYT Connections (extended) | 74.3% | — |
| ARC-AGI-1 | 77% | — |
| CritPt | 20.9% | — |
| Chess Puzzles | 21% | — |
| EBR-Bench | 9.5% | — |
| Mystery Game Puzzles | 19% | — |
| DTBench | 93.6% | — |
| LMCA | 45.8% | — |
| Surface Evolver Bench | 55.6% | — |
| Epoch Capabilities Index | 151.78 | — |
Math GLM-5.2 leads
GLM-5.2: 55.7 (#43), Yi-Lightning: 36.2 (#172)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Math | 1482 | 1300 |
| FrontierMath (Tiers 1-3) | 59.2% | — |
| FrontierMath Tier 4 | 29.3% | — |
| MathArena Final-Answer Competitions | 67.6% | — |
| OTIS Mock AIME 2024-2025 | 86.4% | — |
| ProofBench | 35% | — |
Knowledge GLM-5.2 leads
GLM-5.2: 57.1 (#40), Yi-Lightning: 35.4 (#185)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1486 | 1286 |
| GPQA Diamond | 91.9% | — |
| SimpleQA Verified | 34.2% | — |
Multilingual GLM-5.2 leads
GLM-5.2: 55.8 (#26), Yi-Lightning: 42.2 (#196)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1459 | 1269 |
| LMArena Chinese | 1519 | 1320 |
| LMArena French | 1479 | 1305 |
| LMArena German | 1468 | 1267 |
| LMArena Japanese | 1451 | 1228 |
| LMArena Korean | 1445 | 1192 |
| LMArena Russian | 1466 | 1255 |
| LMArena Spanish | 1477 | 1315 |
Instruction Following GLM-5.2 leads
GLM-5.2: 76.9 (#34), Yi-Lightning: 67.4 (#196)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1465 | 1278 |
Long Context GLM-5.2 leads
GLM-5.2: 45.3 (#43), Yi-Lightning: 39.4 (#181)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1479 | 1297 |
Writing & Preference GLM-5.2 leads
GLM-5.2: 70.4 (#21), Yi-Lightning: 50.2 (#184)
| Benchmark | GLM-5.2 | Yi-Lightning |
|---|---|---|
| LMArena Text | 1470 | 1302 |
| LMArena Creative Writing | 1462 | 1280 |
| LMArena Multi-Turn | 1469 | 1311 |
| EQ-Bench Creative Writing | 1757 | — |
| EQ-Bench 4 | 1222 | — |
Frequently asked questions
Is GLM-5.2 better than Yi-Lightning?
GLM-5.2 is the stronger model overall, scoring 51.1 to 37.1 on the Noometry Index.
Is GLM-5.2 or Yi-Lightning better for coding?
GLM-5.2 scores higher on coding benchmarks: 51.3 versus 27.4 in the Noometry coding category.
How many benchmarks do GLM-5.2 and Yi-Lightning share?
17 benchmarks have published results for both models. GLM-5.2 has 51 scored results on Noometry and Yi-Lightning has 18.