GLM 5 vs GPT-5 Nano
Head to head on 18 shared benchmarks, with price, context window, and release dates.
Benchmark scores
60evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GLM 5 Zai | 1598elo | 70.9 | 16.4% | 66.6% | 7.6% | 55.2% | 71.2% | 73.6% | 67.9% | 55.3% | 77.5% | 83.5% | 69.1% | 38.3% | 72.8% | 70.0% | 39.4% | 97.4% | - | - | - | - | - | 62.9% | 7.9% | - | - | 24.7% | - | - | 97.9 | 82.7% | 48395 | - | - | - | - | - | 65.2% | - | - | - | - | - | - | - | - | - | - | - | 73.3 | 69.7% | 61.12 | - | - | - | 23.4% | - | - | - | 56.4% |
| GPT-5 Nano OpenAI | 703elo | 28 | 8.3% | 42.8% | 4.0% | 32.5% | 52.8% | 62.4% | 43.4% | 55.7% | 46.8% | 68.4% | 40.3% | 29.1% | 34.8% | 67.4% | 6.8% | 25.7% | 0.0% | 27.3% | 0.25 | 0.21 | 6.7% | - | - | 10.0% | 78.2% | - | 1.18 | 100.0% | - | - | - | 47.0% | 1.38 | 1.38 | 100.0% | 100.0% | - | 26.7% | 30.4% | 72.9% | 55.6% | 53.6% | 100.0% | 0.0% | 0.0% | 12.0% | 30.4% | 1.72 | - | - | - | 29.7% | 20.41 | -6.67 | - | 82.0% | 82.0% | 40.0% | 43.7% |
2 / 2 models
| Attribute | GLM 5 Zai | GPT-5 Nano OpenAI |
|---|---|---|
| Description | GLM-5 is an AI model from Zai, released with open weights. | GPT-5 nano is an AI model from OpenAI. |
| Family | Glm | GPT |
| Params | - | - |
| Open weights | open | closed |
| License | mit | proprietary |
| Released | 11 Feb 2026 | 7 Aug 2025 |
| Context | 204,800 | 400,000 |
| Input $/1M | $1.00 | $0.05 |
| Output $/1M | $3.20 | $0.40 |
| Cache read $/1M | $0.120 | $0.005 |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text | text, image, file |
| Providers | - | - |
| Publisher | Zai | OpenAI |
| Reported scores | GPQA Diamond66.6% (AA) Humanity's Last Exam (HLE)7.6% (AA) IFBench55.2% (AA) SciCode38.3% (AA) τ²-bench (Tau²-bench)97.4% (AA) |
FAQ
- Is GLM 5 or GPT-5 Nano better?
- Across the 18 benchmarks both models report on Sophon, GLM 5 leads on 17 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do GLM 5 and GPT-5 Nano compare on GPQA Diamond?
- GLM 5 scores 66.6% and GPT-5 Nano scores 42.8% on GPQA Diamond.
- Which is cheaper, GLM 5 or GPT-5 Nano?
- GPT-5 Nano is cheaper at $0.40 per million output tokens against $3.20 for GLM 5 - about 8.0x.
- When were GLM 5 and GPT-5 Nano released?
- GLM 5 was released 11 Feb 2026 by Zai. GPT-5 Nano was released 7 Aug 2025 by OpenAI.
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