Claude Sonnet 4.5 vs GLM 5
Head to head on 24 shared benchmarks, with price, context window, and release dates.
Benchmark scores
88evals · sort by any column, ⤢ to expand fullscreen
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| GLM 5 Zai | 96.7% | 62.9% | 1601elo | 70.9 | 16.4% | 87.8% | 29.3% | 72.3% | 82.7% | 71.2% | 73.6% | 67.9% | 55.3% | 77.5% | 83.5% | 69.1% | 46.2% | 69.7% | 72.8% | 70.0% | 61.12 | 43.2% | 23.4% | 98.2% | - | - | - | - | - | - | - | - | - | - | 7.9% | - | - | - | - | 24.7% | - | - | - | - | - | - | - | - | 97.9 | - | 48395 | - | - | - | - | - | - | 65.2% | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 73.3 | - | - | - | - | - | - | - | 61.2% |
| Claude Sonnet 4.5 Anthropic | 84.2% | 60.8% | 1677elo | 71.4 | 15.2% | 73.7% | 13.7% | 57.3% | 83.8% | 70.7% | 80.4% | 57.0% | 53.4% | 76.5% | 79.3% | 77.6% | 45.7% | 67.0% | 74.8% | 73.3% | 50.34 | 35.6% | 22.6% | 78.1% | 0.0% | 0.0% | 100 | 0.0% | 0.0% | 0.0% | 5.0% | 0.0% | 0.0% | 0.0% | - | 0.0% | 0.0% | 0.0% | 0.0% | - | 0.0% | 0.0% | 83.9% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | - | 87.5% | - | 0.0% | 0.0% | 71.4% | 0.75 | 0.75 | 0.0% | - | 0 | 40.6% | 84.5% | 0 | 87.5% | 64.0% | 0.0% | 0.0% | 62.9% | 0.0% | 0.0% | 19.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 32.9% | 0.0% | 0 | 0.0% | 0.0% | - | 77.2% | 0.0% | 0 | 0 | 0 | 0.0% | 1.49 | 28.9% |
2 / 2 models
| Attribute | Claude Sonnet 4.5 Anthropic | GLM 5 Zai |
|---|---|---|
| Description | anthropic/claude-sonnet-4.5 is an AI model. | GLM-5 is an AI model from Zai, released with open weights. |
| Family | Claude | Glm |
| Params | Undisclosed (closed) | - |
| Open weights | closed | open |
| License | proprietary | mit |
| Released | 29 Sep 2025 | 11 Feb 2026 |
| Context | 1,000,000 | 204,800 |
| Input $/1M | $3.00 | $1.00 |
| Output $/1M | $15.00 | $3.20 |
| Cache read $/1M | $0.300 | $0.200 |
| Cache write $/1M | $3.750 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text |
| Providers | anthropic, aws-bedrock, vertex-ai | - |
| Publisher | Anthropic | Zai |
| Reported scores | TaxEval v273.3% LiveBench - Math79.3% (LiveBench) LiveBench - Coding80.4% (LiveBench) LiveBench - Language76.5% (LiveBench) LiveBench - Data Analysis57.0% (LiveBench) | GPQA Diamond87.8% Humanity's Last Exam (HLE)29.3% (AA) IFBench72.3% (AA) SciCode46.2% (AA) τ²-bench (Tau²-bench)98.2% (AA) |
FAQ
- Is Claude Sonnet 4.5 or GLM 5 better?
- Across the 24 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 Claude Sonnet 4.5 and GLM 5 compare on GPQA Diamond?
- Claude Sonnet 4.5 scores 73.7% and GLM 5 scores 87.8% on GPQA Diamond.
- Which is cheaper, Claude Sonnet 4.5 or GLM 5?
- GLM 5 is cheaper at $3.20 per million output tokens against $15.00 for Claude Sonnet 4.5 - about 4.7x.
- When were Claude Sonnet 4.5 and GLM 5 released?
- Claude Sonnet 4.5 was released 29 Sep 2025 by Anthropic. GLM 5 was released 11 Feb 2026 by Zai.
Other head-to-heads
56Claude Sonnet 4.5 vs GPT-4.1 Mini35 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.534 shared evalsClaude Sonnet 4.5 vs GPT-5.232 shared evalsClaude Sonnet 4.5 vs GPT-5 Mini31 shared evalsClaude Sonnet 4.5 vs GPT-531 shared evalsClaude Sonnet 4.5 vs GPT-5 Nano31 shared evalsClaude Sonnet 4.5 vs Kimi K2.529 shared evalsClaude 4 Sonnet vs Claude Sonnet 4.528 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.528 shared evalsClaude Sonnet 4.5 vs Grok 4.1 Fast28 shared evalsClaude Sonnet 4.5 vs Gemini 3.1 Pro Preview27 shared evalsClaude Sonnet 4.5 vs DeepSeek V3.227 shared evalsGLM 5 vs Kimi K2.527 shared evalsClaude Sonnet 4.5 vs GPT-5.526 shared evalsClaude Sonnet 4.5 vs GPT-5.426 shared evalsClaude Sonnet 4.5 vs Gemini 2.5 Pro26 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.525 shared evalsClaude Sonnet 4.5 vs GLM 4.725 shared evalsClaude Fable 5 vs Claude Sonnet 4.524 shared evalsClaude Sonnet 4.5 vs Claude Sonnet 4.624 shared evalsClaude Opus 4.7 vs Claude Sonnet 4.524 shared evalsGLM 5 vs GPT-5.224 shared evalsClaude Opus 4.5 vs GLM 524 shared evalsClaude Opus 4.6 vs GLM 524 shared evalsDeepSeek V3.2 vs GLM 524 shared evalsClaude Sonnet 4.5 vs GLM 5.123 shared evalsClaude Sonnet 4.5 vs gpt-oss-120b23 shared evalsClaude Sonnet 4.5 vs Qwen3.6 Plus22 shared evalsGLM 5 vs GPT-5 Mini22 shared evalsGLM 5 vs GPT-5.422 shared evalsClaude Sonnet 4.5 vs GPT-4o21 shared evalsGemini 3.1 Pro Preview vs GLM 521 shared evalsGLM 5 vs Grok 4.1 Fast21 shared evalsGLM 5 vs GPT-5.520 shared evalsClaude Opus 4.8 vs GLM 520 shared evalsClaude Sonnet 4.6 vs GLM 520 shared evalsGLM 5 vs GLM 5.120 shared evalsClaude Opus 4.7 vs GLM 520 shared evalsGLM 5 vs Qwen3.6 Plus20 shared evalsClaude Sonnet 4.5 vs GPT-4.119 shared evalsGLM 5 vs GPT-5 Nano19 shared evalsClaude 4 Sonnet vs GLM 519 shared evalsGLM 5 vs gpt-oss-120b19 shared evalsGLM 4.7 vs GLM 519 shared evalsClaude Fable 5 vs GLM 518 shared evalsGemini 2.5 Pro vs GLM 518 shared evalsClaude Sonnet 4.5 vs GPT-4o-mini17 shared evalsClaude Sonnet 4.5 vs GPT-4.1 Nano16 shared evalsGLM 5 vs GPT-515 shared evalsGLM 5 vs GPT-4o15 shared evalsGLM 5 vs GPT-4.1 Mini12 shared evalsGLM 5 vs GPT-4.112 shared evalsGLM 5 vs GPT-4o-mini12 shared evalsGLM 5 vs GPT-4.1 Nano12 shared evalsClaude Sonnet 4.5 vs GPT-6 Astra11 shared evalsGLM 5 vs GPT-6 Astra7 shared evals
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