Claude Opus 4.5
VS
GLM 5
Claude Opus 4.5 vs GLM 5: which wins at real work?
22 task areas · same graded test runs · rank comparison only, so 0–100 and Elo collections never mix raw scores.
Claude Opus 4.5 wins 17 of 22 task areas we tested; GLM 5 takes 5. GLM 5 costs 11.9× less per token ($2.52 vs $30 per 1M).
GLM 5 costs 11.9× less per token ($2.52 vs $30 per 1M).
Task by task
| Task area | Claude Opus 4.5 | GLM 5 | Winner |
|---|---|---|---|
| Frontend & Landing Pages |
#2
/ 109
Usable
|
#76
/ 109
Weak
|
Claude Opus 4.5 |
| Sales |
#3
/ 110
Strong
|
#68
/ 110
Usable
|
Claude Opus 4.5 |
| Creative & Comedy | #8 / 110 | #72 / 110 | Claude Opus 4.5 |
| Landing Pages |
#7
/ 72
Strong
|
#69
/ 72
Needs editing
|
Claude Opus 4.5 |
| Executive Assistant |
#4
/ 112
Strong
|
#62
/ 112
Strong
|
Claude Opus 4.5 |
| Investor & Pitch |
#10
/ 66
Strong
|
#62
/ 66
Usable
|
Claude Opus 4.5 |
| AI Strategy |
#16
/ 126
Strong
|
#66
/ 126
Strong
|
Claude Opus 4.5 |
| Summarization & Meeting Notes |
#1
/ 110
Excellent
|
#48
/ 110
Excellent
|
Claude Opus 4.5 |
| Chef / Home Cooking |
#14
/ 126
Strong
|
#57
/ 126
Usable
|
Claude Opus 4.5 |
| Training & Education |
#24
/ 110
Excellent
|
#67
/ 110
Strong
|
Claude Opus 4.5 |
| Content & Brand |
#21
/ 124
Strong
|
#60
/ 124
Strong
|
Claude Opus 4.5 |
| Data & Analytics |
#9
/ 110
Excellent
|
#43
/ 110
Excellent
|
Claude Opus 4.5 |
| Research & Competitive Analysis |
#17
/ 110
Excellent
|
#48
/ 110
Strong
|
Claude Opus 4.5 |
| Knowledge & Docs |
#47
/ 110
Strong
|
#24
/ 110
Strong
|
GLM 5 |
| Customer Support |
#56
/ 113
Strong
|
#35
/ 113
Strong
|
GLM 5 |
| Translation & Localization |
#5
/ 110
Excellent
|
#26
/ 110
Excellent
|
Claude Opus 4.5 |
| Structured Output |
#82
/ 113
Strong
|
#94
/ 113
Strong
|
Claude Opus 4.5 |
| Legal & HR |
#30
/ 110
Excellent
|
#37
/ 110
Excellent
|
Claude Opus 4.5 |
| RAG, Safety & Grounding |
#52
/ 113
Excellent
|
#47
/ 113
Excellent
|
GLM 5 |
| Presentations & Decks |
#45
/ 110
Excellent
|
#49
/ 110
Excellent
|
Claude Opus 4.5 |
| Coding |
#39
/ 115
Strong
|
#36
/ 115
Strong
|
GLM 5 |
| Product & Project Management |
#60
/ 110
Strong
|
#58
/ 110
Strong
|
GLM 5 |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Same task, both models — judged
Both models answered the same test case; an independent judge graded each. Quotes are the judge's actual rationale.
Sales
Restaurant GM, shift gaps (Cold Outbound Email)
“The response is an exceptional, production-ready cold email that perfectly captures the requested scrappy voice, leverages the context trigger brilliantly, integrates verified facts, and closes with a highly effective CTA while staying well under the word limit.”
“The model completely failed to generate the requested email, outputting only a single digit.”
Frequently asked
Is Claude Opus 4.5 better than GLM 5?
Across 22 task areas we benchmarked, Claude Opus 4.5 ranks higher in 17 and GLM 5 in 5.
Which is cheaper, Claude Opus 4.5 or GLM 5?
GLM 5 costs 11.9× less per token ($2.52 vs $30 per 1M).
What is Claude Opus 4.5 better at?
Claude Opus 4.5 out-ranks GLM 5 at Frontend & Landing Pages, Sales, Creative & Comedy.
What is GLM 5 better at?
GLM 5 out-ranks Claude Opus 4.5 at Knowledge & Docs, Customer Support, RAG, Safety & Grounding.
More comparisons
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Prompt × model results
12 test cases · 3 evals