Claude Sonnet 5
VS
GPT-5.4 Mini
Claude Sonnet 5 vs GPT-5.4 Mini: 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 Mini wins 12 of 22 task areas we tested; Claude Sonnet 5 takes 10. GPT-5.4 Mini costs 2.3× less per token ($5.25 vs $12 per 1M).
GPT-5.4 Mini costs 2.3× less per token ($5.25 vs $12 per 1M).
Task by task
| Task area | Claude Sonnet 5 | GPT-5.4 Mini | Winner |
|---|---|---|---|
| Structured Output |
#69
/ 113
Strong
|
#1
/ 113
Excellent
|
GPT-5.4 Mini |
| Chef / Home Cooking |
#28
/ 126
Usable
|
#83
/ 126
Usable
|
Claude Sonnet 5 |
| Data & Analytics |
#16
/ 110
Excellent
|
#65
/ 110
Excellent
|
Claude Sonnet 5 |
| AI Strategy |
#2
/ 126
Strong
|
#48
/ 126
Strong
|
Claude Sonnet 5 |
| RAG, Safety & Grounding |
#86
/ 113
Excellent
|
#42
/ 113
Excellent
|
GPT-5.4 Mini |
| Product & Project Management |
#61
/ 110
Strong
|
#19
/ 110
Excellent
|
GPT-5.4 Mini |
| Summarization & Meeting Notes |
#58
/ 110
Excellent
|
#19
/ 110
Excellent
|
GPT-5.4 Mini |
| Customer Support |
#57
/ 113
Strong
|
#21
/ 113
Strong
|
GPT-5.4 Mini |
| Landing Pages |
#12
/ 72
Strong
|
#45
/ 72
Usable
|
Claude Sonnet 5 |
| Legal & HR |
#57
/ 110
Excellent
|
#26
/ 110
Excellent
|
GPT-5.4 Mini |
| Training & Education |
#52
/ 110
Excellent
|
#79
/ 110
Strong
|
Claude Sonnet 5 |
| Sales |
#16
/ 110
Strong
|
#40
/ 110
Usable
|
Claude Sonnet 5 |
| Creative & Comedy | #79 / 110 | #56 / 110 | GPT-5.4 Mini |
| Translation & Localization |
#41
/ 110
Excellent
|
#21
/ 110
Excellent
|
GPT-5.4 Mini |
| Frontend & Landing Pages |
#57
/ 109
Needs editing
|
#38
/ 109
Needs editing
|
GPT-5.4 Mini |
| Coding |
#6
/ 115
Excellent
|
#24
/ 115
Strong
|
Claude Sonnet 5 |
| Content & Brand |
#67
/ 124
Strong
|
#84
/ 124
Usable
|
Claude Sonnet 5 |
| Executive Assistant |
#72
/ 112
Strong
|
#87
/ 112
Usable
|
Claude Sonnet 5 |
| Knowledge & Docs |
#18
/ 110
Strong
|
#3
/ 110
Excellent
|
GPT-5.4 Mini |
| Investor & Pitch |
#39
/ 66
Usable
|
#52
/ 66
Usable
|
Claude Sonnet 5 |
| Presentations & Decks |
#22
/ 110
Excellent
|
#16
/ 110
Excellent
|
GPT-5.4 Mini |
| Research & Competitive Analysis |
#15
/ 110
Excellent
|
#11
/ 110
Excellent
|
GPT-5.4 Mini |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is Claude Sonnet 5 better than GPT-5.4 Mini?
Across 22 task areas we benchmarked, GPT-5.4 Mini ranks higher in 12 and Claude Sonnet 5 in 10.
Which is cheaper, Claude Sonnet 5 or GPT-5.4 Mini?
GPT-5.4 Mini costs 2.3× less per token ($5.25 vs $12 per 1M).
What is Claude Sonnet 5 better at?
Claude Sonnet 5 out-ranks GPT-5.4 Mini at Chef / Home Cooking, Data & Analytics, AI Strategy.
What is GPT-5.4 Mini better at?
GPT-5.4 Mini out-ranks Claude Sonnet 5 at Structured Output, RAG, Safety & Grounding, Product & Project Management.
More comparisons
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Prompt × model results
12 test cases · 3 evals