Grok 4.20 vs Grok 4.20 Beta: 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.
Grok 4.20 Beta wins 15 of 22 task areas we tested; Grok 4.20 takes 7. Grok 4.20 costs 2.1× less per token ($3.75 vs $8 per 1M).
Grok 4.20 costs 2.1× less per token ($3.75 vs $8 per 1M).
Task by task
| Task area | Grok 4.20 | Grok 4.20 Beta | Winner |
|---|---|---|---|
| Chef / Home Cooking |
#100
/ 126
Needs editing
|
#38
/ 126
Usable
|
Grok 4.20 Beta |
| Sales |
#85
/ 110
Usable
|
#46
/ 110
Usable
|
Grok 4.20 Beta |
| Research & Competitive Analysis |
#52
/ 110
Usable
|
#86
/ 110
Needs editing
|
Grok 4.20 |
| Product & Project Management |
#56
/ 110
Strong
|
#31
/ 110
Excellent
|
Grok 4.20 Beta |
| Content & Brand |
#118
/ 124
Needs editing
|
#99
/ 124
Usable
|
Grok 4.20 Beta |
| Legal & HR |
#87
/ 110
Strong
|
#106
/ 110
Strong
|
Grok 4.20 |
| Frontend & Landing Pages |
#15
/ 109
Needs editing
|
#32
/ 109
Needs editing
|
Grok 4.20 |
| Investor & Pitch |
#59
/ 66
Usable
|
#43
/ 66
Usable
|
Grok 4.20 Beta |
| Knowledge & Docs |
#70
/ 110
Usable
|
#86
/ 110
Usable
|
Grok 4.20 |
| Executive Assistant |
#83
/ 112
Usable
|
#69
/ 112
Strong
|
Grok 4.20 Beta |
| Training & Education |
#88
/ 110
Strong
|
#76
/ 110
Strong
|
Grok 4.20 Beta |
| Data & Analytics |
#102
/ 110
Excellent
|
#91
/ 110
Excellent
|
Grok 4.20 Beta |
| AI Strategy |
#59
/ 126
Strong
|
#49
/ 126
Strong
|
Grok 4.20 Beta |
| Presentations & Decks |
#46
/ 110
Excellent
|
#56
/ 110
Strong
|
Grok 4.20 |
| Summarization & Meeting Notes |
#85
/ 110
Excellent
|
#95
/ 110
Excellent
|
Grok 4.20 |
| Coding |
#86
/ 115
Usable
|
#77
/ 115
Strong
|
Grok 4.20 Beta |
| Translation & Localization |
#98
/ 110
Strong
|
#90
/ 110
Strong
|
Grok 4.20 Beta |
| Landing Pages |
#66
/ 72
Usable
|
#60
/ 72
Usable
|
Grok 4.20 Beta |
| Structured Output |
#48
/ 113
Excellent
|
#43
/ 113
Excellent
|
Grok 4.20 Beta |
| Creative & Comedy | #96 / 110 | #92 / 110 | Grok 4.20 Beta |
| Customer Support |
#68
/ 113
Usable
|
#72
/ 113
Usable
|
Grok 4.20 |
| RAG, Safety & Grounding |
#96
/ 113
Strong
|
#93
/ 113
Strong
|
Grok 4.20 Beta |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is Grok 4.20 better than Grok 4.20 Beta?
Across 22 task areas we benchmarked, Grok 4.20 Beta ranks higher in 15 and Grok 4.20 in 7.
Which is cheaper, Grok 4.20 or Grok 4.20 Beta?
Grok 4.20 costs 2.1× less per token ($3.75 vs $8 per 1M).
What is Grok 4.20 better at?
Grok 4.20 out-ranks Grok 4.20 Beta at Research & Competitive Analysis, Legal & HR, Frontend & Landing Pages.
What is Grok 4.20 Beta better at?
Grok 4.20 Beta out-ranks Grok 4.20 at Chef / Home Cooking, Sales, Product & Project Management.
More comparisons
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Prompt × model results
12 test cases · 3 evals