Model comparison
GLM-5.3-Flash vs Molmo 2 8b
GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 39.1 on the Noometry Index.
Last verified . 5 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 5 benchmarks with published results for both. GLM-5.3-Flash scores higher in 5 categories and Molmo 2 8b in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GLM-5.3-Flash leads 48.0 to 25.6.
Side by side
| GLM-5.3-Flash | Molmo 2 8b | |
|---|---|---|
| Provider | Z.ai (Zhipu) | Allen Institute for AI (Ai2) |
| Noometry Index | 51.8 | 39.1 |
| Released | 2026-08-20 | — |
| Weights | Open | Open |
| Context window | 1M | — |
| Max output | 131K | — |
| Input $ / M tokens | $0.15 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 40 | 5 |
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Category by category
Coding Not comparable
GLM-5.3-Flash: 53.1 (#31), Molmo 2 8b: —
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| DeepSWE | 63.4% | — |
| FrontierCode | 31.8% | — |
| CursorBench | 36.8% | — |
| LMArena WebDev | 1609 | — |
| FrontierSWE | 18.1% | — |
| SciCode | 51.6% | — |
| LMArena Coding | 1508 | — |
| ALE-Bench | 303.55 | — |
Agentic & Tool Use Not comparable
GLM-5.3-Flash: 34.2 (#47), Molmo 2 8b: —
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| APEX-Agents | 52.8% | — |
| GDP.pdf | 14% | — |
Reasoning GLM-5.3-Flash leads
GLM-5.3-Flash: 48.0 (#42), Molmo 2 8b: 25.6 (#146)
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1491 | 1287 |
| ARC-AGI-2 | 65.8% | — |
| ARC-AGI-1 | 91% | — |
| CritPt | 15.4% | — |
| Chess Puzzles | 14% | — |
| Mystery Game Puzzles | 8% | — |
| Surface Evolver Bench | 52.5% | — |
| Bench to the Future 3 | 0.15 | — |
| Epoch Capabilities Index | 151.88 | — |
Math Not comparable
GLM-5.3-Flash: 53.3 (#47), Molmo 2 8b: —
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| FrontierMath (Tiers 1-3) | 55.8% | — |
| FrontierMath Tier 4 | 17.1% | — |
| OTIS Mock AIME 2024-2025 | 93.9% | — |
| ProofBench | 21% | — |
| LMArena Math | 1500 | — |
Knowledge Not comparable
GLM-5.3-Flash: 58.4 (#36), Molmo 2 8b: —
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 90.2% | — |
| LMArena Expert | 1513 | — |
Multimodal GLM-5.3-Flash leads
GLM-5.3-Flash: 42.8 (#27), Molmo 2 8b: 30.2 (#112)
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 1296 | 1081 |
Multilingual GLM-5.3-Flash leads
GLM-5.3-Flash: 56.0 (#25), Molmo 2 8b: 42.7 (#190)
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1462 | 1276 |
| LMArena Chinese | 1527 | — |
| LMArena French | 1496 | — |
| LMArena German | 1470 | — |
| LMArena Japanese | 1429 | — |
| LMArena Korean | 1446 | — |
| LMArena Russian | 1469 | — |
| LMArena Spanish | 1471 | — |
Instruction Following GLM-5.3-Flash leads
GLM-5.3-Flash: 77.5 (#20), Molmo 2 8b: 67.0 (#201)
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1478 | 1270 |
Long Context Not comparable
GLM-5.3-Flash: 45.4 (#39), Molmo 2 8b: —
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1482 | — |
Writing & Preference GLM-5.3-Flash leads
GLM-5.3-Flash: 65.3 (#50), Molmo 2 8b: 49.4 (#191)
| Benchmark | GLM-5.3-Flash | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1471 | 1288 |
| LMArena Creative Writing | 1442 | — |
| LMArena Multi-Turn | 1467 | — |
Frequently asked questions
Is GLM-5.3-Flash better than Molmo 2 8b?
GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 39.1 on the Noometry Index.
How many benchmarks do GLM-5.3-Flash and Molmo 2 8b share?
5 benchmarks have published results for both models. GLM-5.3-Flash has 40 scored results on Noometry and Molmo 2 8b has 5.