DeepSeek V4 Pro
VS
Gemini 3 Flash Preview
DeepSeek V4 Pro vs Gemini 3 Flash Preview: 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 V4 Pro wins 14 of 22 task areas we tested; Gemini 3 Flash Preview takes 8. DeepSeek V4 Pro costs 2.7× less per token ($1.305 vs $3.5 per 1M).
DeepSeek V4 Pro costs 2.7× less per token ($1.305 vs $3.5 per 1M).
Task by task
| Task area | DeepSeek V4 Pro | Gemini 3 Flash Preview | Winner |
|---|---|---|---|
| Product & Project Management |
#12
/ 110
Excellent
|
#69
/ 110
Strong
|
DeepSeek V4 Pro |
| Executive Assistant |
#38
/ 112
Strong
|
#92
/ 112
Usable
|
DeepSeek V4 Pro |
| Translation & Localization |
#32
/ 110
Excellent
|
#67
/ 110
Excellent
|
DeepSeek V4 Pro |
| AI Strategy |
#68
/ 126
Strong
|
#38
/ 126
Strong
|
Gemini 3 Flash Preview |
| Training & Education |
#41
/ 110
Excellent
|
#11
/ 110
Excellent
|
Gemini 3 Flash Preview |
| Research & Competitive Analysis |
#44
/ 110
Strong
|
#71
/ 110
Usable
|
DeepSeek V4 Pro |
| Knowledge & Docs |
#25
/ 110
Strong
|
#49
/ 110
Usable
|
DeepSeek V4 Pro |
| Coding |
#43
/ 115
Strong
|
#22
/ 115
Strong
|
Gemini 3 Flash Preview |
| Presentations & Decks |
#31
/ 110
Excellent
|
#52
/ 110
Excellent
|
DeepSeek V4 Pro |
| Landing Pages |
#16
/ 72
Strong
|
#35
/ 72
Strong
|
DeepSeek V4 Pro |
| Customer Support |
#52
/ 113
Strong
|
#34
/ 113
Strong
|
Gemini 3 Flash Preview |
| Investor & Pitch |
#33
/ 66
Strong
|
#47
/ 66
Usable
|
DeepSeek V4 Pro |
| RAG, Safety & Grounding |
#27
/ 113
Excellent
|
#13
/ 113
Excellent
|
Gemini 3 Flash Preview |
| Data & Analytics |
#60
/ 110
Excellent
|
#47
/ 110
Excellent
|
Gemini 3 Flash Preview |
| Structured Output |
#23
/ 113
Excellent
|
#34
/ 113
Excellent
|
DeepSeek V4 Pro |
| Content & Brand |
#29
/ 124
Strong
|
#39
/ 124
Strong
|
DeepSeek V4 Pro |
| Sales |
#44
/ 110
Usable
|
#35
/ 110
Usable
|
Gemini 3 Flash Preview |
| Chef / Home Cooking |
#32
/ 126
Usable
|
#39
/ 126
Usable
|
DeepSeek V4 Pro |
| Legal & HR |
#40
/ 110
Excellent
|
#47
/ 110
Excellent
|
DeepSeek V4 Pro |
| Summarization & Meeting Notes |
#55
/ 110
Excellent
|
#61
/ 110
Excellent
|
DeepSeek V4 Pro |
| Frontend & Landing Pages |
#6
/ 109
Usable
|
#1
/ 109
Usable
|
Gemini 3 Flash Preview |
| Creative & Comedy | #50 / 110 | #51 / 110 | DeepSeek V4 Pro |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is DeepSeek V4 Pro better than Gemini 3 Flash Preview?
Across 22 task areas we benchmarked, DeepSeek V4 Pro ranks higher in 14 and Gemini 3 Flash Preview in 8.
Which is cheaper, DeepSeek V4 Pro or Gemini 3 Flash Preview?
DeepSeek V4 Pro costs 2.7× less per token ($1.305 vs $3.5 per 1M).
What is DeepSeek V4 Pro better at?
DeepSeek V4 Pro out-ranks Gemini 3 Flash Preview at Product & Project Management, Executive Assistant, Translation & Localization.
What is Gemini 3 Flash Preview better at?
Gemini 3 Flash Preview out-ranks DeepSeek V4 Pro at AI Strategy, Training & Education, Coding.
More comparisons
This page is Spring Prompt, running in public
We just did this for every model. Do it for your prompt.
The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.
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Prompt × model results
12 test cases · 3 evals