Claude Haiku 4.5
VS
GPT-5.4 Mini
Claude Haiku 4.5 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 18 of 22 task areas we tested; Claude Haiku 4.5 takes 4. GPT-5.4 Mini costs 1.1× less per token ($5.25 vs $6 per 1M).
GPT-5.4 Mini costs 1.1× less per token ($5.25 vs $6 per 1M).
Task by task
| Task area | Claude Haiku 4.5 | GPT-5.4 Mini | Winner |
|---|---|---|---|
| Structured Output |
#102
/ 110
Usable
|
#1
/ 110
Excellent
|
GPT-5.4 Mini |
| Customer Support |
#93
/ 113
Usable
|
#18
/ 113
Strong
|
GPT-5.4 Mini |
| Presentations & Decks |
#85
/ 107
Strong
|
#14
/ 107
Excellent
|
GPT-5.4 Mini |
| Knowledge & Docs |
#68
/ 107
Usable
|
#3
/ 107
Excellent
|
GPT-5.4 Mini |
| Coding |
#79
/ 115
Usable
|
#21
/ 115
Strong
|
GPT-5.4 Mini |
| RAG, Safety & Grounding |
#84
/ 110
Strong
|
#37
/ 110
Excellent
|
GPT-5.4 Mini |
| Research & Competitive Analysis |
#56
/ 107
Usable
|
#11
/ 107
Excellent
|
GPT-5.4 Mini |
| AI Strategy |
#88
/ 126
Strong
|
#45
/ 126
Strong
|
GPT-5.4 Mini |
| Sales |
#77
/ 107
Usable
|
#38
/ 107
Usable
|
GPT-5.4 Mini |
| Training & Education |
#35
/ 107
Excellent
|
#74
/ 107
Strong
|
Claude Haiku 4.5 |
| Chef / Home Cooking |
#109
/ 126
Needs editing
|
#79
/ 126
Usable
|
GPT-5.4 Mini |
| Creative & Comedy | #81 / 107 | #52 / 107 | GPT-5.4 Mini |
| Frontend & Landing Pages |
#6
/ 106
Usable
|
#35
/ 106
Needs editing
|
Claude Haiku 4.5 |
| Legal & HR |
#46
/ 107
Excellent
|
#25
/ 107
Excellent
|
GPT-5.4 Mini |
| Product & Project Management |
#38
/ 107
Strong
|
#19
/ 107
Excellent
|
GPT-5.4 Mini |
| Landing Pages |
#66
/ 69
Needs editing
|
#49
/ 69
Usable
|
GPT-5.4 Mini |
| Executive Assistant |
#67
/ 109
Strong
|
#81
/ 109
Usable
|
Claude Haiku 4.5 |
| Data & Analytics |
#51
/ 110
Excellent
|
#63
/ 110
Excellent
|
Claude Haiku 4.5 |
| Investor & Pitch |
#58
/ 63
Needs editing
|
#47
/ 63
Usable
|
GPT-5.4 Mini |
| Summarization & Meeting Notes |
#24
/ 107
Excellent
|
#16
/ 107
Excellent
|
GPT-5.4 Mini |
| Content & Brand |
#89
/ 124
Usable
|
#84
/ 124
Usable
|
GPT-5.4 Mini |
| Translation & Localization |
#26
/ 107
Excellent
|
#21
/ 107
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 Haiku 4.5 better than GPT-5.4 Mini?
Across 22 task areas we benchmarked, GPT-5.4 Mini ranks higher in 18 and Claude Haiku 4.5 in 4.
Which is cheaper, Claude Haiku 4.5 or GPT-5.4 Mini?
GPT-5.4 Mini costs 1.1× less per token ($5.25 vs $6 per 1M).
What is Claude Haiku 4.5 better at?
Claude Haiku 4.5 out-ranks GPT-5.4 Mini at Training & Education, Frontend & Landing Pages, Executive Assistant.
What is GPT-5.4 Mini better at?
GPT-5.4 Mini out-ranks Claude Haiku 4.5 at Structured Output, Customer Support, Presentations & Decks.
This page is Spring Prompt, running
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Prompt × model results
12 test cases · 3 evals