Model comparison
Gemini 3.1 Flash Lite vs GLM-5.3-Flash
GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 40.8 on the Noometry Index.
Last verified . 27 shared benchmarks.
GoogleSummary
- They share 27 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 0 categories and GLM-5.3-Flash in 10 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GLM-5.3-Flash leads 48.0 to 22.9.
- The biggest single-benchmark swing is FrontierMath (Tiers 1-3): 27.7% for Gemini 3.1 Flash Lite and 55.8% for GLM-5.3-Flash.
- GLM-5.3-Flash is cheaper at $0.15 / $0.50 per million input/output tokens, against $0.25 / $1.50 for Gemini 3.1 Flash Lite.
- Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 1M.
- GLM-5.3-Flash has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.1 Flash Lite | GLM-5.3-Flash | |
|---|---|---|
| Provider | Z.ai (Zhipu) | |
| Noometry Index | 40.8 | 51.8 |
| Released | 2026-03-03 | 2026-08-20 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 1M |
| Max output | 66K | 131K |
| Input $ / M tokens | $0.25 | $0.15 |
| Output $ / M tokens | $1.50 | $0.50 |
| Results tracked | 38 | 40 |
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Category by category
Coding GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 37.8 (#188), GLM-5.3-Flash: 53.1 (#31)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| LMArena WebDev | 1256 | 1609 |
| SciCode | 41.9% | 51.6% |
| LMArena Coding | 1400 | 1508 |
| ALE-Bench | 797.73 | 303.55 |
| DeepSWE | — | 63.4% |
| FrontierCode | — | 31.8% |
| CursorBench | — | 36.8% |
| FrontierSWE | — | 18.1% |
| WeirdML | 52.2% | — |
Agentic & Tool Use GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 30.2 (#79), GLM-5.3-Flash: 34.2 (#47)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| APEX-Agents | — | 52.8% |
| DeepResearch Bench | 37.3% | — |
| GDP.pdf | — | 14% |
Reasoning GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 22.9 (#186), GLM-5.3-Flash: 48.0 (#42)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| CritPt | 1.1% | 15.4% |
| Chess Puzzles | 25% | 14% |
| LMArena Hard Prompts | 1407 | 1491 |
| Epoch Capabilities Index | 144.47 | 151.88 |
| ARC-AGI-2 | — | 65.8% |
| Kagi LLM Benchmark | 67.2% | — |
| NYT Connections (extended) | 8.2% | — |
| ARC-AGI-1 | — | 91% |
| EnigmaEval | 3% | — |
| Thematic Generalization | 63.3% | — |
| Mystery Game Puzzles | — | 8% |
| DTBench | 76.8% | — |
| LMCA | 35% | — |
| Surface Evolver Bench | — | 52.5% |
| Bench to the Future 3 | — | 0.15 |
| ForecastBench | 54.4 | — |
Math GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 40.7 (#90), GLM-5.3-Flash: 53.3 (#47)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | 27.7% | 55.8% |
| OTIS Mock AIME 2024-2025 | 80% | 93.9% |
| LMArena Math | 1428 | 1500 |
| FrontierMath Tier 4 | — | 17.1% |
| ProofBench | — | 21% |
Knowledge GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 41.9 (#104), GLM-5.3-Flash: 58.4 (#36)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| GPQA Diamond | 81.8% | 90.2% |
| LMArena Expert | 1398 | 1513 |
| Humanity's Last Exam | 8.6% | — |
| Vectara Hallucination Rate | 8.2% | — |
Multimodal GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 39.4 (#60), GLM-5.3-Flash: 42.8 (#27)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| LMArena Vision | 1240 | 1296 |
Multilingual GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 52.3 (#86), GLM-5.3-Flash: 56.0 (#25)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| LMArena Non-English | 1411 | 1462 |
| LMArena Chinese | 1461 | 1527 |
| LMArena French | 1424 | 1496 |
| LMArena German | 1429 | 1470 |
| LMArena Japanese | 1413 | 1429 |
| LMArena Korean | 1392 | 1446 |
| LMArena Russian | 1420 | 1469 |
| LMArena Spanish | 1421 | 1471 |
Instruction Following GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 72.7 (#131), GLM-5.3-Flash: 77.5 (#20)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| LMArena Instruction Following | 1377 | 1478 |
Long Context GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 42.5 (#122), GLM-5.3-Flash: 45.4 (#39)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| LMArena Longer Query | 1394 | 1482 |
Writing & Preference GLM-5.3-Flash leads
Gemini 3.1 Flash Lite: 60.9 (#94), GLM-5.3-Flash: 65.3 (#50)
| Benchmark | Gemini 3.1 Flash Lite | GLM-5.3-Flash |
|---|---|---|
| LMArena Text | 1416 | 1471 |
| LMArena Creative Writing | 1401 | 1442 |
| LMArena Multi-Turn | 1417 | 1467 |
Frequently asked questions
Is Gemini 3.1 Flash Lite better than GLM-5.3-Flash?
GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 40.8 on the Noometry Index.
Which is cheaper, Gemini 3.1 Flash Lite or GLM-5.3-Flash?
GLM-5.3-Flash is cheaper. It lists at $0.15 per million input tokens and $0.50 per million output tokens; Gemini 3.1 Flash Lite lists at $0.25 and $1.50.
Is Gemini 3.1 Flash Lite or GLM-5.3-Flash better for coding?
GLM-5.3-Flash scores higher on coding benchmarks: 53.1 versus 37.8 in the Noometry coding category.
Which has the bigger context window?
Gemini 3.1 Flash Lite does, with 1.05M tokens against 1M.
How many benchmarks do Gemini 3.1 Flash Lite and GLM-5.3-Flash share?
27 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and GLM-5.3-Flash has 40.