Claude Opus 4.5
VS
DeepSeek V4 Pro
Claude Opus 4.5 vs DeepSeek V4 Pro: 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.
Claude Opus 4.5 wins 16 of 22 task areas we tested; DeepSeek V4 Pro takes 6. DeepSeek V4 Pro costs 23.0× less per token ($1.305 vs $30 per 1M).
DeepSeek V4 Pro costs 23.0× less per token ($1.305 vs $30 per 1M).
Task by task
| Task area | Claude Opus 4.5 | DeepSeek V4 Pro | Winner |
|---|---|---|---|
| Structured Output |
#82
/ 113
Strong
|
#23
/ 113
Excellent
|
DeepSeek V4 Pro |
| Summarization & Meeting Notes |
#1
/ 110
Excellent
|
#55
/ 110
Excellent
|
Claude Opus 4.5 |
| AI Strategy |
#16
/ 126
Strong
|
#68
/ 126
Strong
|
Claude Opus 4.5 |
| Data & Analytics |
#9
/ 110
Excellent
|
#60
/ 110
Excellent
|
Claude Opus 4.5 |
| Product & Project Management |
#60
/ 110
Strong
|
#12
/ 110
Excellent
|
DeepSeek V4 Pro |
| Creative & Comedy | #8 / 110 | #50 / 110 | Claude Opus 4.5 |
| Sales |
#3
/ 110
Strong
|
#44
/ 110
Usable
|
Claude Opus 4.5 |
| Executive Assistant |
#4
/ 112
Strong
|
#38
/ 112
Strong
|
Claude Opus 4.5 |
| Research & Competitive Analysis |
#17
/ 110
Excellent
|
#44
/ 110
Strong
|
Claude Opus 4.5 |
| Translation & Localization |
#5
/ 110
Excellent
|
#32
/ 110
Excellent
|
Claude Opus 4.5 |
| RAG, Safety & Grounding |
#52
/ 113
Excellent
|
#27
/ 113
Excellent
|
DeepSeek V4 Pro |
| Investor & Pitch |
#10
/ 66
Strong
|
#33
/ 66
Strong
|
Claude Opus 4.5 |
| Knowledge & Docs |
#47
/ 110
Strong
|
#25
/ 110
Strong
|
DeepSeek V4 Pro |
| Chef / Home Cooking |
#14
/ 126
Strong
|
#32
/ 126
Usable
|
Claude Opus 4.5 |
| Training & Education |
#24
/ 110
Excellent
|
#41
/ 110
Excellent
|
Claude Opus 4.5 |
| Presentations & Decks |
#45
/ 110
Excellent
|
#31
/ 110
Excellent
|
DeepSeek V4 Pro |
| Legal & HR |
#30
/ 110
Excellent
|
#40
/ 110
Excellent
|
Claude Opus 4.5 |
| Landing Pages |
#7
/ 72
Strong
|
#16
/ 72
Strong
|
Claude Opus 4.5 |
| Content & Brand |
#21
/ 124
Strong
|
#29
/ 124
Strong
|
Claude Opus 4.5 |
| Coding |
#39
/ 115
Strong
|
#43
/ 115
Strong
|
Claude Opus 4.5 |
| Customer Support |
#56
/ 113
Strong
|
#52
/ 113
Strong
|
DeepSeek V4 Pro |
| Frontend & Landing Pages |
#2
/ 109
Usable
|
#6
/ 109
Usable
|
Claude Opus 4.5 |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is Claude Opus 4.5 better than DeepSeek V4 Pro?
Across 22 task areas we benchmarked, Claude Opus 4.5 ranks higher in 16 and DeepSeek V4 Pro in 6.
Which is cheaper, Claude Opus 4.5 or DeepSeek V4 Pro?
DeepSeek V4 Pro costs 23.0× less per token ($1.305 vs $30 per 1M).
What is Claude Opus 4.5 better at?
Claude Opus 4.5 out-ranks DeepSeek V4 Pro at Summarization & Meeting Notes, AI Strategy, Data & Analytics.
What is DeepSeek V4 Pro better at?
DeepSeek V4 Pro out-ranks Claude Opus 4.5 at Structured Output, Product & Project Management, RAG, Safety & Grounding.
More comparisons
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Prompt × model results
12 test cases · 3 evals