Gemini 3.1 Pro Preview vs GLM 5.1
Head to head on 32 shared benchmarks, with price, context window, and release dates.
Benchmark scores
51evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gemini 3.1 Pro Preview Google (Alphabet Inc.) | 76.8% | 12.3% | 64.5% | 22.0% | 1489elo | 68.2 | 43.0% | 36.9% | 42.5% | 94.1% | 15.1% | 47.0% | 77.1% | 82.4% | 76.5% | 78.5% | 79.1% | 85.4% | 91.0% | 84.0% | 86.3% | 59.1% | 76.1% | 26.0% | 58.9% | 72.7% | 72.9% | 53.8% | 79.4 | 41.9% | 32.0% | 95.6% | - | 26.5% | 2 | 73.1% | 22.8% | 1142elo | 16.7% | 1314elo | 93.2% | 84.4% | 0.0% | - | 69.4% | 76.2% | 48.7% | - | 54.2% | 70.7% | 56.1% | 58.9% |
| GLM 5.1 Zai | 20.8% | 35.9% | 64.5% | 40.0% | 1589elo | 73.5 | 44.8% | 33.5% | 34.7% | 83.9% | 15.1% | 27.9% | 52.0% | 72.7% | 75.4% | 63.2% | 68.5% | 71.8% | 84.9% | 72.5% | 67.0% | 41.6% | 72.3% | 22.2% | 36.1% | 34.6% | 71.2% | 35.6% | 69.8 | 52.5% | 31.5% | 97.1% | 1.13 | - | - | - | - | - | - | - | - | - | - | 85.4% | - | - | - | 5.24 | - | - | - | 53.6% |
2 / 2 models
| Attribute | Gemini 3.1 Pro Preview Google (Alphabet Inc.) | GLM 5.1 Zai |
|---|---|---|
| Description | Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.). | GLM-5.1 is an AI model from Zai, released with open weights. |
| Family | Gemini | Glm |
| Params | - | - |
| Open weights | - | open |
| License | - | mit |
| Released | 19 Feb 2026 | 7 Apr 2026 |
| Context | 1,048,576 | 204,800 |
| Input $/1M | $2.00 | $1.39 |
| Output $/1M | $12.00 | $4.40 |
| Cache read $/1M | $0.200 | $0.234 |
| Cache write $/1M | $0.375 | - |
| Speed | 122 tok/s | 0 tok/s |
| Latency | 20.68 s | 0.00 s |
| Modalities | audio, file, image, text, video | text |
| Providers | - | - |
| Publisher | Google (Alphabet Inc.) | Zai |
| Reported scores | GPQA Diamond94.1% (AA) Humanity's Last Exam (HLE)47.0% (AA) IFBench77.1% (AA) SciCode58.9% (AA) τ²-bench (Tau²-bench)95.6% (AA) | IFBench52.0% (AA) τ²-bench (Tau²-bench)97.1% (AA) Terminal-Bench (Hard)35.6% (AA) Vals Index52.5% Vibe Code Bench v1.131.5% |
FAQ
- Is Gemini 3.1 Pro Preview or GLM 5.1 better?
- Across the 32 benchmarks both models report on Sophon, Gemini 3.1 Pro Preview leads on 24 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Gemini 3.1 Pro Preview and GLM 5.1 compare on GPQA Diamond?
- Gemini 3.1 Pro Preview scores 94.1% and GLM 5.1 scores 83.9% on GPQA Diamond.
- Which is cheaper, Gemini 3.1 Pro Preview or GLM 5.1?
- GLM 5.1 is cheaper at $4.40 per million output tokens against $12.00 for Gemini 3.1 Pro Preview - about 2.7x.
- When were Gemini 3.1 Pro Preview and GLM 5.1 released?
- Gemini 3.1 Pro Preview was released 19 Feb 2026 by Google (Alphabet Inc.). GLM 5.1 was released 7 Apr 2026 by Zai.
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