Gemini 3.1 Pro Preview
VS
Grok 4.20
Gemini 3.1 Pro Preview 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.
Gemini 3.1 Pro Preview wins 21 of 22 task areas we tested; Grok 4.20 takes 1. Grok 4.20 costs 3.7× less per token ($3.75 vs $14 per 1M).
Grok 4.20 costs 3.7× less per token ($3.75 vs $14 per 1M).
Task by task
| Task area | Gemini 3.1 Pro Preview | Grok 4.20 | Winner |
|---|---|---|---|
| Content & Brand |
#11
/ 124
Strong
|
#118
/ 124
Needs editing
|
Gemini 3.1 Pro Preview |
| Chef / Home Cooking |
#6
/ 126
Strong
|
#100
/ 126
Needs editing
|
Gemini 3.1 Pro Preview |
| Creative & Comedy | #4 / 110 | #96 / 110 | Gemini 3.1 Pro Preview |
| RAG, Safety & Grounding |
#8
/ 113
Excellent
|
#96
/ 113
Strong
|
Gemini 3.1 Pro Preview |
| Training & Education |
#4
/ 110
Excellent
|
#88
/ 110
Strong
|
Gemini 3.1 Pro Preview |
| Translation & Localization |
#14
/ 110
Excellent
|
#98
/ 110
Strong
|
Gemini 3.1 Pro Preview |
| Summarization & Meeting Notes |
#4
/ 110
Excellent
|
#85
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Legal & HR |
#17
/ 110
Excellent
|
#87
/ 110
Strong
|
Gemini 3.1 Pro Preview |
| Executive Assistant |
#14
/ 112
Strong
|
#83
/ 112
Usable
|
Gemini 3.1 Pro Preview |
| Customer Support |
#2
/ 113
Strong
|
#68
/ 113
Usable
|
Gemini 3.1 Pro Preview |
| Data & Analytics |
#39
/ 110
Excellent
|
#102
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Sales |
#32
/ 110
Strong
|
#85
/ 110
Usable
|
Gemini 3.1 Pro Preview |
| Landing Pages |
#14
/ 72
Strong
|
#66
/ 72
Usable
|
Gemini 3.1 Pro Preview |
| Knowledge & Docs |
#19
/ 110
Strong
|
#70
/ 110
Usable
|
Gemini 3.1 Pro Preview |
| Investor & Pitch |
#13
/ 66
Strong
|
#59
/ 66
Usable
|
Gemini 3.1 Pro Preview |
| Structured Output |
#15
/ 113
Excellent
|
#48
/ 113
Excellent
|
Gemini 3.1 Pro Preview |
| Product & Project Management |
#25
/ 110
Excellent
|
#56
/ 110
Strong
|
Gemini 3.1 Pro Preview |
| AI Strategy |
#33
/ 126
Strong
|
#59
/ 126
Strong
|
Gemini 3.1 Pro Preview |
| Coding |
#64
/ 115
Strong
|
#86
/ 115
Usable
|
Gemini 3.1 Pro Preview |
| Presentations & Decks |
#24
/ 110
Excellent
|
#46
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Frontend & Landing Pages |
#34
/ 109
Needs editing
|
#15
/ 109
Needs editing
|
Grok 4.20 |
| Research & Competitive Analysis |
#42
/ 110
Strong
|
#52
/ 110
Usable
|
Gemini 3.1 Pro Preview |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is Gemini 3.1 Pro Preview better than Grok 4.20?
Across 22 task areas we benchmarked, Gemini 3.1 Pro Preview ranks higher in 21 and Grok 4.20 in 1.
Which is cheaper, Gemini 3.1 Pro Preview or Grok 4.20?
Grok 4.20 costs 3.7× less per token ($3.75 vs $14 per 1M).
What is Gemini 3.1 Pro Preview better at?
Gemini 3.1 Pro Preview out-ranks Grok 4.20 at Content & Brand, Chef / Home Cooking, Creative & Comedy.
What is Grok 4.20 better at?
Grok 4.20 out-ranks Gemini 3.1 Pro Preview at Frontend & Landing Pages.
More comparisons
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Prompt × model results
12 test cases · 3 evals