GLM 5.1 vs GPT-5.4 Mini
Head to head on 24 shared benchmarks, with price, context window, and release dates.
Benchmark scores
41evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GPT-5.4 Mini OpenAI | 37.0% | 60.9% | 1665elo | 73 | 45.4% | 28.3% | 87.5% | 28.1% | 73.3% | 70.9% | 71.6% | 70.9% | 60.3% | 71.5% | 78.6% | 72.5% | 21.0% | 52.1% | 71.2% | 52.3% | 61.7 | 33.2% | 48.0% | 83.3% | - | - | - | 21.2% | 3.9% | - | - | 80.3% | - | - | - | - | 63.5% | 50.8% | - | - | 54.2% | 55.2% |
| GLM 5.1 Zai | 35.9% | 64.5% | 1592elo | 73.5 | 44.8% | 33.5% | 86.8% | 30.1% | 76.3% | 72.7% | 75.4% | 63.2% | 68.5% | 71.8% | 84.9% | 72.5% | 22.2% | 44.8% | 71.2% | 43.2% | 69.8 | 52.5% | 31.5% | 97.7% | 20.8% | 1.13 | 35.0% | - | - | 34.7% | 15.1% | - | 67.0% | 41.6% | 72.3% | 85.4% | - | - | 34.6% | 5.24 | - | 55.0% |
2 / 2 models
| Attribute | GLM 5.1 Zai | GPT-5.4 Mini OpenAI |
|---|---|---|
| Description | GLM-5.1 is an AI model from Zai, released with open weights. | GPT-5.4 mini is an AI model from OpenAI. |
| Family | Glm | GPT |
| Params | - | - |
| Open weights | open | closed |
| License | mit | proprietary |
| Released | 7 Apr 2026 | 17 Mar 2026 |
| Context | 204,800 | 400,000 |
| Input $/1M | $1.28 | $0.75 |
| Output $/1M | $4.07 | $4.50 |
| Cache read $/1M | $0.179 | $0.075 |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text | file, image, text |
| Providers | - | - |
| Publisher | Zai | OpenAI |
| Reported scores | IFBench76.3% (AA) τ²-bench (Tau²-bench)97.7% (AA) Terminal-Bench (Hard)43.2% (AA) Vals Index52.5% Vibe Code Bench v1.131.5% |
FAQ
- Is GLM 5.1 or GPT-5.4 Mini better?
- Across the 24 benchmarks both models report on Sophon, GLM 5.1 leads on 15 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do GLM 5.1 and GPT-5.4 Mini compare on GPQA Diamond?
- GLM 5.1 scores 86.8% and GPT-5.4 Mini scores 87.5% on GPQA Diamond.
- Which is cheaper, GLM 5.1 or GPT-5.4 Mini?
- GLM 5.1 is cheaper at $4.07 per million output tokens against $4.50 for GPT-5.4 Mini - about 1.1x.
- When were GLM 5.1 and GPT-5.4 Mini released?
- GLM 5.1 was released 7 Apr 2026 by Zai. GPT-5.4 Mini was released 17 Mar 2026 by OpenAI.
Other head-to-heads
56Gemini 3.1 Pro Preview vs GLM 5.132 shared evalsGLM 5.1 vs GPT-5.531 shared evalsGemini 3.1 Pro Preview vs GPT-5.4 Mini30 shared evalsClaude Sonnet 4.6 vs GPT-5.4 Mini28 shared evalsClaude Opus 4.7 vs GLM 5.128 shared evalsClaude Opus 4.8 vs GLM 5.127 shared evalsClaude Opus 4.6 vs GLM 5.127 shared evalsGPT-5.4 Mini vs GPT-5.427 shared evalsGPT-5.4 Mini vs GPT-5.526 shared evalsClaude Opus 4.8 vs GPT-5.4 Mini26 shared evalsGLM 5.1 vs GPT-5.426 shared evalsGLM 5.1 vs Kimi K2.526 shared evalsClaude Opus 4.7 vs GPT-5.4 Mini26 shared evalsGLM 5.1 vs GPT-5 Mini25 shared evalsGLM 5.1 vs GPT-5.225 shared evalsGPT-5.4 Mini vs GPT-5.225 shared evalsClaude Opus 4.5 vs GPT-5.4 Mini25 shared evalsClaude Fable 5 vs GLM 5.125 shared evalsClaude Fable 5 vs GPT-5.4 Mini25 shared evalsClaude Opus 4.6 vs GPT-5.4 Mini25 shared evalsGPT-5.4 Mini vs Kimi K2.525 shared evalsClaude Sonnet 4.6 vs GLM 5.125 shared evalsGPT-5.4 Mini vs GPT-5 Mini24 shared evalsDeepSeek V3.2 vs GLM 5.124 shared evalsGPT-5.4 Mini vs Qwen3.6 Plus24 shared evalsClaude Sonnet 4.5 vs GLM 5.123 shared evalsClaude Sonnet 4.5 vs GPT-5.4 Mini23 shared evalsClaude Opus 4.5 vs GLM 5.123 shared evalsGLM 5.1 vs Qwen3.6 Plus23 shared evalsGLM 5.1 vs Grok 4.1 Fast23 shared evalsGLM 4.7 vs GLM 5.122 shared evalsDeepSeek V3.2 vs GPT-5.4 Mini22 shared evalsGPT-5.4 Mini vs Grok 4.1 Fast22 shared evalsGLM 5.1 vs GPT-5 Nano21 shared evalsGPT-5.4 Mini vs GPT-5 Nano20 shared evalsClaude 4 Sonnet vs GLM 5.120 shared evalsClaude 4 Sonnet vs GPT-5.4 Mini19 shared evalsGemini 2.5 Pro vs GLM 5.119 shared evalsGLM 5.1 vs gpt-oss-120b19 shared evalsGLM 4.7 vs GPT-5.4 Mini19 shared evalsGemini 2.5 Pro vs GPT-5.4 Mini18 shared evalsGPT-5.4 Mini vs gpt-oss-120b17 shared evalsGLM 5.1 vs GPT-516 shared evalsGPT-5 vs GPT-5.4 Mini16 shared evalsGLM 5.1 vs GPT-6 Astra14 shared evalsGLM 5.1 vs GPT-4o14 shared evalsGPT-4o vs GPT-5.4 Mini14 shared evalsGLM 5.1 vs GPT-4o-mini12 shared evalsGPT-4o-mini vs GPT-5.4 Mini12 shared evalsGPT-5.4 Mini vs GPT-6 Astra12 shared evalsGLM 5.1 vs GPT-4.1 Nano12 shared evalsGPT-4.1 Nano vs GPT-5.4 Mini12 shared evalsGLM 5.1 vs GPT-4.1 Mini11 shared evalsGPT-4.1 Mini vs GPT-5.4 Mini11 shared evalsGLM 5.1 vs GPT-4.111 shared evalsGPT-4.1 vs GPT-5.4 Mini11 shared evals
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