Claude Sonnet 5
VS
GLM 5
Claude Sonnet 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 Sonnet 5 wins 13 of 22 task areas we tested; GLM 5 takes 9. GLM 5 costs 4.8× less per token ($2.52 vs $12 per 1M).
GLM 5 costs 4.8× less per token ($2.52 vs $12 per 1M).
Task by task
| Task area | Claude Sonnet 5 | GLM 5 | Winner |
|---|---|---|---|
| AI Strategy |
#2
/ 126
Strong
|
#66
/ 126
Strong
|
Claude Sonnet 5 |
| Landing Pages |
#12
/ 72
Strong
|
#69
/ 72
Needs editing
|
Claude Sonnet 5 |
| Sales |
#16
/ 110
Strong
|
#68
/ 110
Usable
|
Claude Sonnet 5 |
| RAG, Safety & Grounding |
#86
/ 113
Excellent
|
#47
/ 113
Excellent
|
GLM 5 |
| Research & Competitive Analysis |
#15
/ 110
Excellent
|
#48
/ 110
Strong
|
Claude Sonnet 5 |
| Coding |
#6
/ 115
Excellent
|
#36
/ 115
Strong
|
Claude Sonnet 5 |
| Chef / Home Cooking |
#28
/ 126
Usable
|
#57
/ 126
Usable
|
Claude Sonnet 5 |
| Data & Analytics |
#16
/ 110
Excellent
|
#43
/ 110
Excellent
|
Claude Sonnet 5 |
| Presentations & Decks |
#22
/ 110
Excellent
|
#49
/ 110
Excellent
|
Claude Sonnet 5 |
| Structured Output |
#69
/ 113
Strong
|
#94
/ 113
Strong
|
Claude Sonnet 5 |
| Investor & Pitch |
#39
/ 66
Usable
|
#62
/ 66
Usable
|
Claude Sonnet 5 |
| Customer Support |
#57
/ 113
Strong
|
#35
/ 113
Strong
|
GLM 5 |
| Legal & HR |
#57
/ 110
Excellent
|
#37
/ 110
Excellent
|
GLM 5 |
| Frontend & Landing Pages |
#57
/ 109
Needs editing
|
#76
/ 109
Weak
|
Claude Sonnet 5 |
| Training & Education |
#52
/ 110
Excellent
|
#67
/ 110
Strong
|
Claude Sonnet 5 |
| Translation & Localization |
#41
/ 110
Excellent
|
#26
/ 110
Excellent
|
GLM 5 |
| Executive Assistant |
#72
/ 112
Strong
|
#62
/ 112
Strong
|
GLM 5 |
| Summarization & Meeting Notes |
#58
/ 110
Excellent
|
#48
/ 110
Excellent
|
GLM 5 |
| Content & Brand |
#67
/ 124
Strong
|
#60
/ 124
Strong
|
GLM 5 |
| Creative & Comedy | #79 / 110 | #72 / 110 | GLM 5 |
| Knowledge & Docs |
#18
/ 110
Strong
|
#24
/ 110
Strong
|
Claude Sonnet 5 |
| Product & Project Management |
#61
/ 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.
Landing Pages
AI survey analysis tool (Five-Second Clarity Test)
“The response is expert-level and production-ready. It seamlessly integrates all constraints while adding highly relevant, concrete details (like 'word clouds' and 'reading rows') that demonstrate a deep understanding of the target audience's pain points.”
“The model completely failed to respond to the prompt, outputting only a single digit instead of the requested above-the-fold copy.”
Frequently asked
Is Claude Sonnet 5 better than GLM 5?
Across 22 task areas we benchmarked, Claude Sonnet 5 ranks higher in 13 and GLM 5 in 9.
Which is cheaper, Claude Sonnet 5 or GLM 5?
GLM 5 costs 4.8× less per token ($2.52 vs $12 per 1M).
What is Claude Sonnet 5 better at?
Claude Sonnet 5 out-ranks GLM 5 at AI Strategy, Landing Pages, Sales.
What is GLM 5 better at?
GLM 5 out-ranks Claude Sonnet 5 at RAG, Safety & Grounding, Customer Support, Legal & HR.
More comparisons
This page is Spring Prompt, running in public
We just did this for every model. Do it for your prompt.
The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.
- Generate test cases from your prompt — no eval set required to start.
- Compare models side by side with quality, cost and latency in one matrix.
- Optimise the winner until the scores say it's ready to ship.
Prompt × model results
12 test cases · 3 evals