GLM 5 vs Grok 4.20: 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.
GLM 5 wins 15 of 22 task areas we tested; Grok 4.20 takes 7. GLM 5 costs 1.5× less per token ($2.52 vs $3.75 per 1M).
GLM 5 costs 1.5× less per token ($2.52 vs $3.75 per 1M).
Task by task
| Task area | GLM 5 | Grok 4.20 | Winner |
|---|---|---|---|
| Translation & Localization |
#26
/ 110
Excellent
|
#98
/ 110
Strong
|
GLM 5 |
| Frontend & Landing Pages |
#76
/ 109
Weak
|
#15
/ 109
Needs editing
|
Grok 4.20 |
| Data & Analytics |
#43
/ 110
Excellent
|
#102
/ 110
Excellent
|
GLM 5 |
| Content & Brand |
#60
/ 124
Strong
|
#118
/ 124
Needs editing
|
GLM 5 |
| Coding |
#36
/ 115
Strong
|
#86
/ 115
Usable
|
GLM 5 |
| Legal & HR |
#37
/ 110
Excellent
|
#87
/ 110
Strong
|
GLM 5 |
| RAG, Safety & Grounding |
#47
/ 113
Excellent
|
#96
/ 113
Strong
|
GLM 5 |
| Knowledge & Docs |
#24
/ 110
Strong
|
#70
/ 110
Usable
|
GLM 5 |
| Structured Output |
#94
/ 113
Strong
|
#48
/ 113
Excellent
|
Grok 4.20 |
| Chef / Home Cooking |
#57
/ 126
Usable
|
#100
/ 126
Needs editing
|
GLM 5 |
| Summarization & Meeting Notes |
#48
/ 110
Excellent
|
#85
/ 110
Excellent
|
GLM 5 |
| Customer Support |
#35
/ 113
Strong
|
#68
/ 113
Usable
|
GLM 5 |
| Creative & Comedy | #72 / 110 | #96 / 110 | GLM 5 |
| Executive Assistant |
#62
/ 112
Strong
|
#83
/ 112
Usable
|
GLM 5 |
| Training & Education |
#67
/ 110
Strong
|
#88
/ 110
Strong
|
GLM 5 |
| Sales |
#68
/ 110
Usable
|
#85
/ 110
Usable
|
GLM 5 |
| AI Strategy |
#66
/ 126
Strong
|
#59
/ 126
Strong
|
Grok 4.20 |
| Research & Competitive Analysis |
#48
/ 110
Strong
|
#52
/ 110
Usable
|
GLM 5 |
| Investor & Pitch |
#62
/ 66
Usable
|
#59
/ 66
Usable
|
Grok 4.20 |
| Landing Pages |
#69
/ 72
Needs editing
|
#66
/ 72
Usable
|
Grok 4.20 |
| Presentations & Decks |
#49
/ 110
Excellent
|
#46
/ 110
Excellent
|
Grok 4.20 |
| Product & Project Management |
#58
/ 110
Strong
|
#56
/ 110
Strong
|
Grok 4.20 |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is GLM 5 better than Grok 4.20?
Across 22 task areas we benchmarked, GLM 5 ranks higher in 15 and Grok 4.20 in 7.
Which is cheaper, GLM 5 or Grok 4.20?
GLM 5 costs 1.5× less per token ($2.52 vs $3.75 per 1M).
What is GLM 5 better at?
GLM 5 out-ranks Grok 4.20 at Translation & Localization, Data & Analytics, Content & Brand.
What is Grok 4.20 better at?
Grok 4.20 out-ranks GLM 5 at Frontend & Landing Pages, Structured Output, AI Strategy.
More comparisons
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Prompt × model results
12 test cases · 3 evals