Model comparison
Gemini 1.5 Flash (May 2024) vs GLM-5.1
GLM-5.1 is the stronger model overall, scoring 47.6 to 32.9 on the Noometry Index.
Last verified . 22 shared benchmarks.
GoogleSummary
- They share 22 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 1 category and GLM-5.1 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GLM-5.1 leads 55.0 to 26.2.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 16.3% for Gemini 1.5 Flash (May 2024) and 93.3% for GLM-5.1.
- GLM-5.1 has downloadable open weights; the other is API-only.
Side by side
| Gemini 1.5 Flash (May 2024) | GLM-5.1 | |
|---|---|---|
| Provider | Z.ai (Zhipu) | |
| Noometry Index | 32.9 | 47.6 |
| Released | 2024-05-14 | 2026-04-07 |
| Weights | Proprietary | Open |
| Context window | — | 200K |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.40 |
| Output $ / M tokens | — | $4.40 |
| Results tracked | 42 | 41 |
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Category by category
Coding GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 33.9 (#233), GLM-5.1: 48.5 (#52)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| WeirdML | 24.9% | 57.1% |
| LMArena Coding | 1262 | 1486 |
| SWE-bench Verified | — | 74.2% |
| LMArena WebDev | — | 1509 |
| SciCode | — | 43.8% |
| BigCodeBench Instruct | 43.5% | — |
| BigCodeBench Complete | 55.1% | — |
| ALE-Bench | — | 887.1 |
| HumanEval+ | 75.6% | — |
| MBPP+ | 67.5% | — |
Agentic & Tool Use Gemini 1.5 Flash (May 2024) leads
Gemini 1.5 Flash (May 2024): 26.3 (#97), GLM-5.1: 24.8 (#106)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| APEX-Agents | — | 40.9% |
| BALROG | 14.6% | — |
| ExploitBench | — | 18.1% |
| GBAEval | — | 0% |
| Vending-Bench 2 | — | 5,634 |
Reasoning GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 20.8 (#212), GLM-5.1: 38.2 (#57)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1472 |
| Epoch Capabilities Index | 129.37 | 149.86 |
| SimpleBench | — | 55.1% |
| NYT Connections (extended) | — | 77.7% |
| CritPt | — | 4.6% |
| Chess Puzzles | — | 19% |
| Thematic Generalization | — | 69.8% |
| DTBench | 53.8% | — |
| ForecastBench | 53.9 | — |
| PIQA | 87.5% | — |
Math GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 20.8 (#274), GLM-5.1: 49.0 (#48)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 16.3% | 93.3% |
| LMArena Math | 1269 | 1472 |
| FrontierMath (Feb 2025 set) | 0% | 33.4% |
| FrontierMath (Tiers 1-3) | — | 36.8% |
| MathArena Final-Answer Competitions | — | 67.1% |
| ProofBench | — | 22.2% |
| Omni-MATH | 30.4% | — |
| MATH Level 5 | 61.9% | — |
| FrontierMath Tier 4 (v1) | — | 12.5% |
| GSM8K | 82.4% | — |
Knowledge GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 26.2 (#253), GLM-5.1: 55.0 (#45)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| GPQA Diamond | 47.3% | 89.9% |
| LMArena Expert | 1233 | 1477 |
| SimpleQA Verified | — | 34% |
| MMLU-Pro | 67.8% | — |
| GPQA (HELM) | 43.7% | — |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |
Multimodal Not comparable
Gemini 1.5 Flash (May 2024): 35.3 (#76), GLM-5.1: —
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| LMArena Vision | 1141 | — |
| Video-MME | 70.3% | — |
| GeoBench | 76% | — |
Multilingual GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 43.1 (#184), GLM-5.1: 55.2 (#34)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| LMArena Non-English | 1278 | 1448 |
| LMArena Chinese | 1295 | 1516 |
| LMArena French | 1257 | 1478 |
| LMArena German | 1262 | 1466 |
| LMArena Japanese | 1252 | 1436 |
| LMArena Korean | 1220 | 1423 |
| LMArena Russian | 1288 | 1453 |
| LMArena Spanish | 1242 | 1467 |
Instruction Following GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 67.0 (#199), GLM-5.1: 76.5 (#41)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| LMArena Instruction Following | 1258 | 1451 |
| IFEval | 83.1% | — |
Long Context GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 39.0 (#182), GLM-5.1: 44.9 (#51)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| LMArena Longer Query | 1284 | 1467 |
Writing & Preference GLM-5.1 leads
Gemini 1.5 Flash (May 2024): 48.9 (#190), GLM-5.1: 67.2 (#29)
| Benchmark | Gemini 1.5 Flash (May 2024) | GLM-5.1 |
|---|---|---|
| LMArena Text | 1287 | 1462 |
| LMArena Creative Writing | 1285 | 1454 |
| LMArena Multi-Turn | 1253 | 1473 |
| EQ-Bench Creative Writing | — | 1592 |
| WildBench | 79.2% | — |
Frequently asked questions
Is Gemini 1.5 Flash (May 2024) better than GLM-5.1?
GLM-5.1 is the stronger model overall, scoring 47.6 to 32.9 on the Noometry Index.
Is Gemini 1.5 Flash (May 2024) or GLM-5.1 better for coding?
GLM-5.1 scores higher on coding benchmarks: 48.5 versus 33.9 in the Noometry coding category.
How many benchmarks do Gemini 1.5 Flash (May 2024) and GLM-5.1 share?
22 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and GLM-5.1 has 41.