Claude Opus 4.8 vs GLM 5
Head to head on 20 shared benchmarks, with price, context window, and release dates.
Benchmark scores
52evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.8 Anthropic | 66.7% | 1840elo | 80.8 | 47.2% | 91.0% | 48.7% | 62.2% | 80.1% | 79.3% | 78.3% | 67.4% | 81.4% | 84.3% | 89.7% | 91.8% | 53.5% | 75.6% | 58.3% | 82.7% | 94.4% | - | 15.5% | 80.4% | 14.5% | 61.0% | - | 1268elo | 40.0% | 53.9% | - | 13.4% | 22.5% | 1890elo | 56.9% | - | - | - | 10.4% | 53.2% | 85.8% | 69.9% | 83.4% | 69.0% | 54.8% | - | - | - | 69.2% | - | 82.7% | 55.1% | 70.9% | 63.0% |
| GLM 5 Zai | 62.9% | 1601elo | 70.9 | 16.4% | 87.8% | 29.3% | 72.3% | 71.2% | 73.6% | 67.9% | 55.3% | 77.5% | 83.5% | 69.1% | 65.2% | 46.2% | 70.0% | 43.2% | 23.4% | 98.2% | 96.7% | - | - | - | - | 7.9% | - | - | - | 24.7% | - | - | - | - | 97.9 | 82.7% | 48395 | - | - | - | - | - | - | - | 73.3 | 69.7% | 72.8% | - | 61.12 | - | - | - | 61.2% |
2 / 2 models
| Attribute | Claude Opus 4.8 Anthropic | GLM 5 Zai |
|---|---|---|
| Description | Claude Opus 4.8 (Adaptive Reasoning, Max Effort) is an AI model from Anthropic. | GLM-5 is an AI model from Zai, released with open weights. |
| Family | Claude | Glm |
| Params | - | - |
| Open weights | - | open |
| License | - | mit |
| Released | 28 May 2026 | 11 Feb 2026 |
| Context | 1,000,000 | 204,800 |
| Input $/1M | $5.00 | $1.00 |
| Output $/1M | $25.00 | $3.20 |
| Cache read $/1M | $0.500 | $0.200 |
| Cache write $/1M | $6.250 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text |
| Providers | - | - |
| Publisher | Anthropic | Zai |
| Reported scores | 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 Opus 4.8 or GLM 5 better?
- Across the 20 benchmarks both models report on Sophon, Claude Opus 4.8 leads on 18 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.8 and GLM 5 compare on GPQA Diamond?
- Claude Opus 4.8 scores 91.0% and GLM 5 scores 87.8% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.8 or GLM 5?
- GLM 5 is cheaper at $3.20 per million output tokens against $25.00 for Claude Opus 4.8 - about 7.8x.
- When were Claude Opus 4.8 and GLM 5 released?
- Claude Opus 4.8 was released 28 May 2026 by Anthropic. GLM 5 was released 11 Feb 2026 by Zai.
Other head-to-heads
56Claude Opus 4.8 vs GPT-5.541 shared evalsClaude Fable 5 vs Claude Opus 4.840 shared evalsClaude Opus 4.8 vs Gemini 3.1 Pro Preview38 shared evalsClaude Opus 4.7 vs Claude Opus 4.830 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.629 shared evalsClaude Opus 4.8 vs GPT-5.428 shared evalsClaude Opus 4.6 vs Claude Opus 4.828 shared evalsClaude Opus 4.8 vs Kimi K2.528 shared evalsClaude Opus 4.8 vs GLM 5.127 shared evalsGLM 5 vs Kimi K2.527 shared evalsClaude Opus 4.8 vs GPT-5.226 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.525 shared evalsClaude Opus 4.8 vs Qwen3.6 Plus25 shared evalsClaude Sonnet 4.5 vs GLM 524 shared evalsClaude Opus 4.8 vs GPT-5 Mini24 shared evalsGLM 5 vs GPT-5.224 shared evalsClaude Opus 4.5 vs Claude Opus 4.824 shared evalsClaude Opus 4.8 vs Grok 4.1 Fast24 shared evalsClaude Opus 4.5 vs GLM 524 shared evalsClaude Opus 4.6 vs GLM 524 shared evalsDeepSeek V3.2 vs GLM 524 shared evalsGLM 5 vs GPT-5 Mini22 shared evalsClaude Opus 4.8 vs GPT-5 Nano22 shared evalsClaude 4 Sonnet vs Claude Opus 4.822 shared evalsClaude Opus 4.8 vs DeepSeek V3.222 shared evalsGLM 5 vs GPT-5.422 shared evalsGemini 3.1 Pro Preview vs GLM 521 shared evalsClaude Opus 4.8 vs GLM 4.721 shared evalsGLM 5 vs Grok 4.1 Fast21 shared evalsGLM 5 vs GPT-5.520 shared evalsClaude Opus 4.8 vs Gemini 2.5 Pro20 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 evalsGLM 5 vs GPT-5 Nano19 shared evalsClaude Opus 4.8 vs GPT-6 Astra19 shared evalsClaude 4 Sonnet vs GLM 519 shared evalsGLM 5 vs gpt-oss-120b19 shared evalsGLM 4.7 vs GLM 519 shared evalsClaude Opus 4.8 vs gpt-oss-120b18 shared evalsClaude Fable 5 vs GLM 518 shared evalsGemini 2.5 Pro vs GLM 518 shared evalsClaude Opus 4.8 vs GPT-517 shared evalsGLM 5 vs GPT-515 shared evalsGLM 5 vs GPT-4o15 shared evalsClaude Opus 4.8 vs GPT-4o14 shared evalsGLM 5 vs GPT-4.1 Mini12 shared evalsClaude Opus 4.8 vs GPT-4o-mini12 shared evalsClaude Opus 4.8 vs GPT-4.1 Nano12 shared evalsGLM 5 vs GPT-4.112 shared evalsGLM 5 vs GPT-4o-mini12 shared evalsGLM 5 vs GPT-4.1 Nano12 shared evalsClaude Opus 4.8 vs GPT-4.1 Mini11 shared evalsClaude Opus 4.8 vs GPT-4.111 shared evalsGLM 5 vs GPT-6 Astra7 shared evals
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