DeepSeek V3.1 Terminus
VS
Grok 4.20
DeepSeek V3.1 Terminus 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.
DeepSeek V3.1 Terminus wins 12 of 22 task areas we tested; Grok 4.20 takes 10. DeepSeek V3.1 Terminus costs 3.1× less per token ($1.22 vs $3.75 per 1M).
DeepSeek V3.1 Terminus costs 3.1× less per token ($1.22 vs $3.75 per 1M).
Task by task
| Task area | DeepSeek V3.1 Terminus | Grok 4.20 | Winner |
|---|---|---|---|
| Training & Education |
#31
/ 110
Excellent
|
#88
/ 110
Strong
|
DeepSeek V3.1 Terminus |
| Summarization & Meeting Notes |
#32
/ 110
Excellent
|
#85
/ 110
Excellent
|
DeepSeek V3.1 Terminus |
| Data & Analytics |
#56
/ 110
Excellent
|
#102
/ 110
Excellent
|
DeepSeek V3.1 Terminus |
| Presentations & Decks |
#91
/ 110
Strong
|
#46
/ 110
Excellent
|
Grok 4.20 |
| AI Strategy |
#101
/ 126
Usable
|
#59
/ 126
Strong
|
Grok 4.20 |
| Landing Pages |
#44
/ 72
Strong
|
#66
/ 72
Usable
|
DeepSeek V3.1 Terminus |
| Knowledge & Docs |
#50
/ 110
Usable
|
#70
/ 110
Usable
|
DeepSeek V3.1 Terminus |
| Product & Project Management |
#36
/ 110
Strong
|
#56
/ 110
Strong
|
DeepSeek V3.1 Terminus |
| Content & Brand |
#100
/ 124
Usable
|
#118
/ 124
Needs editing
|
DeepSeek V3.1 Terminus |
| Frontend & Landing Pages |
#33
/ 109
Needs editing
|
#15
/ 109
Needs editing
|
Grok 4.20 |
| Structured Output |
#63
/ 113
Excellent
|
#48
/ 113
Excellent
|
Grok 4.20 |
| Sales |
#97
/ 110
Needs editing
|
#85
/ 110
Usable
|
Grok 4.20 |
| RAG, Safety & Grounding |
#85
/ 113
Excellent
|
#96
/ 113
Strong
|
DeepSeek V3.1 Terminus |
| Legal & HR |
#95
/ 110
Strong
|
#87
/ 110
Strong
|
Grok 4.20 |
| Creative & Comedy | #89 / 110 | #96 / 110 | DeepSeek V3.1 Terminus |
| Coding |
#92
/ 115
Usable
|
#86
/ 115
Usable
|
Grok 4.20 |
| Executive Assistant |
#77
/ 112
Usable
|
#83
/ 112
Usable
|
DeepSeek V3.1 Terminus |
| Research & Competitive Analysis |
#46
/ 110
Strong
|
#52
/ 110
Usable
|
DeepSeek V3.1 Terminus |
| Chef / Home Cooking |
#95
/ 126
Usable
|
#100
/ 126
Needs editing
|
DeepSeek V3.1 Terminus |
| Investor & Pitch |
#64
/ 66
Needs editing
|
#59
/ 66
Usable
|
Grok 4.20 |
| Translation & Localization |
#101
/ 110
Strong
|
#98
/ 110
Strong
|
Grok 4.20 |
| Customer Support |
#69
/ 113
Usable
|
#68
/ 113
Usable
|
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 DeepSeek V3.1 Terminus better than Grok 4.20?
Across 22 task areas we benchmarked, DeepSeek V3.1 Terminus ranks higher in 12 and Grok 4.20 in 10.
Which is cheaper, DeepSeek V3.1 Terminus or Grok 4.20?
DeepSeek V3.1 Terminus costs 3.1× less per token ($1.22 vs $3.75 per 1M).
What is DeepSeek V3.1 Terminus better at?
DeepSeek V3.1 Terminus out-ranks Grok 4.20 at Training & Education, Summarization & Meeting Notes, Data & Analytics.
What is Grok 4.20 better at?
Grok 4.20 out-ranks DeepSeek V3.1 Terminus at Presentations & Decks, AI Strategy, Frontend & Landing Pages.
More comparisons
This page is Spring Prompt, running in public
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Prompt × model results
12 test cases · 3 evals