DeepSeek V4 Pro
VS
GPT-5.4
DeepSeek V4 Pro vs GPT-5.4: 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.
GPT-5.4 wins 18 of 22 task areas we tested; DeepSeek V4 Pro takes 4. DeepSeek V4 Pro costs 13.4× less per token ($1.305 vs $17.5 per 1M).
DeepSeek V4 Pro costs 13.4× less per token ($1.305 vs $17.5 per 1M).
Task by task
| Task area | DeepSeek V4 Pro | GPT-5.4 | Winner |
|---|---|---|---|
| Creative & Comedy | #50 / 110 | #6 / 110 | GPT-5.4 |
| Summarization & Meeting Notes |
#55
/ 110
Excellent
|
#11
/ 110
Excellent
|
GPT-5.4 |
| Research & Competitive Analysis |
#44
/ 110
Strong
|
#1
/ 110
Excellent
|
GPT-5.4 |
| Customer Support |
#52
/ 113
Strong
|
#13
/ 113
Strong
|
GPT-5.4 |
| Coding |
#43
/ 115
Strong
|
#9
/ 115
Excellent
|
GPT-5.4 |
| AI Strategy |
#68
/ 126
Strong
|
#37
/ 126
Strong
|
GPT-5.4 |
| Presentations & Decks |
#31
/ 110
Excellent
|
#1
/ 110
Excellent
|
GPT-5.4 |
| Training & Education |
#41
/ 110
Excellent
|
#69
/ 110
Strong
|
DeepSeek V4 Pro |
| Investor & Pitch |
#33
/ 66
Strong
|
#7
/ 66
Strong
|
GPT-5.4 |
| Knowledge & Docs |
#25
/ 110
Strong
|
#1
/ 110
Excellent
|
GPT-5.4 |
| Content & Brand |
#29
/ 124
Strong
|
#7
/ 124
Strong
|
GPT-5.4 |
| Legal & HR |
#40
/ 110
Excellent
|
#20
/ 110
Excellent
|
GPT-5.4 |
| Data & Analytics |
#60
/ 110
Excellent
|
#42
/ 110
Excellent
|
GPT-5.4 |
| Translation & Localization |
#32
/ 110
Excellent
|
#17
/ 110
Excellent
|
GPT-5.4 |
| Structured Output |
#23
/ 113
Excellent
|
#9
/ 113
Excellent
|
GPT-5.4 |
| Chef / Home Cooking |
#32
/ 126
Usable
|
#19
/ 126
Strong
|
GPT-5.4 |
| Executive Assistant |
#38
/ 112
Strong
|
#25
/ 112
Strong
|
GPT-5.4 |
| Landing Pages |
#16
/ 72
Strong
|
#22
/ 72
Strong
|
DeepSeek V4 Pro |
| Sales |
#44
/ 110
Usable
|
#41
/ 110
Usable
|
GPT-5.4 |
| RAG, Safety & Grounding |
#27
/ 113
Excellent
|
#29
/ 113
Excellent
|
DeepSeek V4 Pro |
| Frontend & Landing Pages |
#6
/ 109
Usable
|
#5
/ 109
Usable
|
GPT-5.4 |
| Product & Project Management |
#12
/ 110
Excellent
|
#13
/ 110
Excellent
|
DeepSeek V4 Pro |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Same task, both models — judged
Both models answered the same test case; an independent judge graded each. Quotes are the judge's actual rationale.
Presentations & Decks
Resist the exaggeration ask (Ferrovia) (Honest Data Slide)
“The response fails to lead with the core recommendation and uses imperative labels instead of full-sentence action titles.”
“The response is an exemplary meta-answer that perfectly addresses the prompt. It leads with a clear recommendation, provides a strong action title for the proposed slide, explicitly defends honest data visualization practices (zero-based axes, accurate terminology), and offers excellent executive communication advice for managing the VP.”
Frequently asked
Is DeepSeek V4 Pro better than GPT-5.4?
Across 22 task areas we benchmarked, GPT-5.4 ranks higher in 18 and DeepSeek V4 Pro in 4.
Which is cheaper, DeepSeek V4 Pro or GPT-5.4?
DeepSeek V4 Pro costs 13.4× less per token ($1.305 vs $17.5 per 1M).
What is DeepSeek V4 Pro better at?
DeepSeek V4 Pro out-ranks GPT-5.4 at Training & Education, Landing Pages, RAG, Safety & Grounding.
What is GPT-5.4 better at?
GPT-5.4 out-ranks DeepSeek V4 Pro at Creative & Comedy, Summarization & Meeting Notes, Research & Competitive Analysis.
More comparisons
This page is Spring Prompt, running in public
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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