Claude Opus 5 vs GLM-5
Claude Opus 5 
GLM-5 Verdict
- Claude Opus 5 leads on quality: 70.0 vs 59.1.
- Claude Opus 5 is stronger in agents & tools, coding, composite, human preference, knowledge, long context, maths, multimodal, reasoning.
- GLM-5 is stronger in instruction following.
- GLM-5 is 6.5× cheaper ($1.55 vs $10.00 per 1M blended).
| Metric | Claude Opus 5 | GLM-5 |
|---|---|---|
| BenchLeader Index | 70.0 | 59.1 |
| Agents & tools score | 71.5 | 56.8 |
| Coding score | 74.5 | 52.9 |
| Composite score | 93.1 | 64.3 |
| Human preference score | 78.2 | 65.6 |
| Knowledge score | 70.6 | 64.3 |
| Long context score | 66.2 | 64.3 |
| Maths score | 67.1 | 53.1 |
| Multimodal score | 69.4 | – |
| Reasoning score | 71.5 | 51.5 |
| Instruction following score | – | 70.5 |
| Blended price $/M | $10.00 | $1.55 |
| Output speed | 51 tok/s | 66 tok/s |
| Time to first answer | 93.0 s | 48.7 s |
| Context window | 1M | 205k |
| GPQA Diamond | 92.9% | 87.8% |
| OTIS Mock AIME | 97.8% | 80.0% |
| SWE-bench Verified (Epoch) | – | 72.1% |
| Terminal-Bench | – | 52.4% |
| SimpleBench | 80.6% | 53.2% |
| WeirdML | 86.3% | 48.2% |
| APEX-Agents | – | 17.2% |
| Epoch Capabilities Index | 162.6 | 145.9 |
| LMArena Text | – | 1458 |
| LMArena Hard Prompts | – | 1478 |
| LMArena Coding | – | 1498 |
| LMArena WebDev | – | 1436 |
| AA Intelligence Index | 50.7 | 27.9 |
| IFBench | – | 72.3% |
| AA-LCR | 79.3% | 75.7% |
| MMMU-Pro | 84.7% | – |
| AA-Omniscience | 37.1 | 0.3 |
| Terminal-Bench Hard | – | 43.2% |
| GPQA Diamond (AA) | 93.2% | 82.0% |
| Humanity's Last Exam (AA) | 54.9% | 29.3% |
| SciCode (AA) | 56.4% | – |
| τ²-Bench Telecom (AA) | – | 98.3% |
| LiveCodeBench | 89.0% | – |
| MMLU-Pro | 91.6% | – |
| IOI | 91.7% | – |
| LegalBench | 87.0% | – |
| CorpFin | 73.2% | – |
| TaxEval | 75.1% | – |
| Terminal-Bench 2.1 (Vals) | 84.6% | – |
| SWE-bench (Vals) | 97.0% | – |
| GPQA Diamond (Vals) | 93.4% | – |
| Vals Index | 67.2 | – |
| AIME 2026 | – | 96.7% |
| HMMT February 2026 | – | 86.4% |
| MathArena Apex | – | 10.9% |
| HiL-Bench | 57.0% | – |
| EQ-Bench 4 | 1385 | – |
| Kagi LLM Benchmark | – | 51.7% |
| ARC-AGI-1 | – | 44.7% |
| ARC-AGI-2 | – | 4.9% |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Claude Opus 5 vs GLM-5: questions
- Is Claude Opus 5 better than GLM-5?
- Claude Opus 5 leads on quality: 70.0 vs 59.1. The BenchLeader Index combines every independent quality benchmark; Claude Opus 5 is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Claude Opus 5 better than GLM-5 for coding?
- Claude Opus 5 scores higher in coding (75 vs 53 on the category index, where 50 is average).
- Is Claude Opus 5 better than GLM-5 for agentic tasks?
- Claude Opus 5 scores higher in agentic tasks (72 vs 57 on the category index, where 50 is average).
- Which is cheaper, Claude Opus 5 or GLM-5?
- GLM-5 is cheaper: $1.55 against $10.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Opus 5 or GLM-5?
- GLM-5 streams faster: 66 against 51 output tokens per second.
- Which has the larger context window?
- Claude Opus 5 accepts more context: 1M against 205k tokens.