DeepSeek V3.1 Terminus vs Gemini 3.1 Flash Lite: 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 Flash Lite wins 19 of 22 task areas we tested; DeepSeek V3.1 Terminus takes 3. DeepSeek V3.1 Terminus costs 1.4× less per token ($1.22 vs $1.75 per 1M).
DeepSeek V3.1 Terminus costs 1.4× less per token ($1.22 vs $1.75 per 1M).
Task by task
| Task area | DeepSeek V3.1 Terminus | Gemini 3.1 Flash Lite | Winner |
|---|---|---|---|
| Translation & Localization |
#101
/ 110
Strong
|
#39
/ 110
Excellent
|
Gemini 3.1 Flash Lite |
| Content & Brand |
#100
/ 124
Usable
|
#43
/ 124
Strong
|
Gemini 3.1 Flash Lite |
| AI Strategy |
#101
/ 126
Usable
|
#54
/ 126
Strong
|
Gemini 3.1 Flash Lite |
| Coding |
#92
/ 115
Usable
|
#58
/ 115
Strong
|
Gemini 3.1 Flash Lite |
| Sales |
#97
/ 110
Needs editing
|
#67
/ 110
Usable
|
Gemini 3.1 Flash Lite |
| RAG, Safety & Grounding |
#85
/ 113
Excellent
|
#58
/ 113
Excellent
|
Gemini 3.1 Flash Lite |
| Structured Output |
#63
/ 113
Excellent
|
#36
/ 113
Excellent
|
Gemini 3.1 Flash Lite |
| Chef / Home Cooking |
#95
/ 126
Usable
|
#70
/ 126
Usable
|
Gemini 3.1 Flash Lite |
| Executive Assistant |
#77
/ 112
Usable
|
#101
/ 112
Usable
|
DeepSeek V3.1 Terminus |
| Frontend & Landing Pages |
#33
/ 109
Needs editing
|
#10
/ 109
Usable
|
Gemini 3.1 Flash Lite |
| Investor & Pitch |
#64
/ 66
Needs editing
|
#44
/ 66
Usable
|
Gemini 3.1 Flash Lite |
| Summarization & Meeting Notes |
#32
/ 110
Excellent
|
#13
/ 110
Excellent
|
Gemini 3.1 Flash Lite |
| Knowledge & Docs |
#50
/ 110
Usable
|
#33
/ 110
Strong
|
Gemini 3.1 Flash Lite |
| Customer Support |
#69
/ 113
Usable
|
#54
/ 113
Strong
|
Gemini 3.1 Flash Lite |
| Data & Analytics |
#56
/ 110
Excellent
|
#44
/ 110
Excellent
|
Gemini 3.1 Flash Lite |
| Presentations & Decks |
#91
/ 110
Strong
|
#80
/ 110
Strong
|
Gemini 3.1 Flash Lite |
| Research & Competitive Analysis |
#46
/ 110
Strong
|
#56
/ 110
Usable
|
DeepSeek V3.1 Terminus |
| Legal & HR |
#95
/ 110
Strong
|
#86
/ 110
Strong
|
Gemini 3.1 Flash Lite |
| Product & Project Management |
#36
/ 110
Strong
|
#29
/ 110
Excellent
|
Gemini 3.1 Flash Lite |
| Creative & Comedy | #89 / 110 | #85 / 110 | Gemini 3.1 Flash Lite |
| Training & Education |
#31
/ 110
Excellent
|
#33
/ 110
Excellent
|
DeepSeek V3.1 Terminus |
| Landing Pages |
#44
/ 72
Strong
|
#43
/ 72
Strong
|
Gemini 3.1 Flash Lite |
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 Gemini 3.1 Flash Lite?
Across 22 task areas we benchmarked, Gemini 3.1 Flash Lite ranks higher in 19 and DeepSeek V3.1 Terminus in 3.
Which is cheaper, DeepSeek V3.1 Terminus or Gemini 3.1 Flash Lite?
DeepSeek V3.1 Terminus costs 1.4× less per token ($1.22 vs $1.75 per 1M).
What is DeepSeek V3.1 Terminus better at?
DeepSeek V3.1 Terminus out-ranks Gemini 3.1 Flash Lite at Executive Assistant, Research & Competitive Analysis, Training & Education.
What is Gemini 3.1 Flash Lite better at?
Gemini 3.1 Flash Lite out-ranks DeepSeek V3.1 Terminus at Translation & Localization, Content & Brand, AI Strategy.
More comparisons
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Prompt × model results
12 test cases · 3 evals