Claude Haiku 4.5
VS
Gemini 3.5 Flash
Claude Haiku 4.5 vs Gemini 3.5 Flash: 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.
Gemini 3.5 Flash wins 19 of 22 task areas we tested; Claude Haiku 4.5 takes 3. Claude Haiku 4.5 costs 1.8× less per token ($6 vs $10.5 per 1M).
Claude Haiku 4.5 costs 1.8× less per token ($6 vs $10.5 per 1M).
Task by task
| Task area | Claude Haiku 4.5 | Gemini 3.5 Flash | Winner |
|---|---|---|---|
| Chef / Home Cooking |
#113
/ 126
Needs editing
|
#24
/ 126
Usable
|
Gemini 3.5 Flash |
| Customer Support |
#99
/ 113
Usable
|
#12
/ 113
Strong
|
Gemini 3.5 Flash |
| RAG, Safety & Grounding |
#97
/ 113
Strong
|
#15
/ 113
Excellent
|
Gemini 3.5 Flash |
| Structured Output |
#109
/ 113
Usable
|
#35
/ 113
Excellent
|
Gemini 3.5 Flash |
| Presentations & Decks |
#88
/ 110
Strong
|
#17
/ 110
Excellent
|
Gemini 3.5 Flash |
| AI Strategy |
#91
/ 126
Strong
|
#23
/ 126
Strong
|
Gemini 3.5 Flash |
| Coding |
#94
/ 115
Usable
|
#28
/ 115
Strong
|
Gemini 3.5 Flash |
| Creative & Comedy | #84 / 110 | #27 / 110 | Gemini 3.5 Flash |
| Executive Assistant |
#73
/ 112
Strong
|
#19
/ 112
Strong
|
Gemini 3.5 Flash |
| Sales |
#80
/ 110
Usable
|
#33
/ 110
Strong
|
Gemini 3.5 Flash |
| Content & Brand |
#89
/ 124
Usable
|
#46
/ 124
Strong
|
Gemini 3.5 Flash |
| Training & Education |
#36
/ 110
Excellent
|
#7
/ 110
Excellent
|
Gemini 3.5 Flash |
| Knowledge & Docs |
#71
/ 110
Usable
|
#44
/ 110
Strong
|
Gemini 3.5 Flash |
| Legal & HR |
#48
/ 110
Excellent
|
#73
/ 110
Strong
|
Claude Haiku 4.5 |
| Landing Pages |
#61
/ 72
Usable
|
#40
/ 72
Strong
|
Gemini 3.5 Flash |
| Data & Analytics |
#53
/ 110
Excellent
|
#34
/ 110
Excellent
|
Gemini 3.5 Flash |
| Summarization & Meeting Notes |
#27
/ 110
Excellent
|
#17
/ 110
Excellent
|
Gemini 3.5 Flash |
| Investor & Pitch |
#63
/ 66
Needs editing
|
#56
/ 66
Usable
|
Gemini 3.5 Flash |
| Research & Competitive Analysis |
#59
/ 110
Usable
|
#65
/ 110
Usable
|
Claude Haiku 4.5 |
| Product & Project Management |
#38
/ 110
Strong
|
#33
/ 110
Strong
|
Gemini 3.5 Flash |
| Frontend & Landing Pages |
#7
/ 109
Usable
|
#4
/ 109
Usable
|
Gemini 3.5 Flash |
| Translation & Localization |
#27
/ 110
Excellent
|
#30
/ 110
Excellent
|
Claude Haiku 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 Haiku 4.5 better than Gemini 3.5 Flash?
Across 22 task areas we benchmarked, Gemini 3.5 Flash ranks higher in 19 and Claude Haiku 4.5 in 3.
Which is cheaper, Claude Haiku 4.5 or Gemini 3.5 Flash?
Claude Haiku 4.5 costs 1.8× less per token ($6 vs $10.5 per 1M).
What is Claude Haiku 4.5 better at?
Claude Haiku 4.5 out-ranks Gemini 3.5 Flash at Legal & HR, Research & Competitive Analysis, Translation & Localization.
What is Gemini 3.5 Flash better at?
Gemini 3.5 Flash out-ranks Claude Haiku 4.5 at Chef / Home Cooking, Customer Support, RAG, Safety & Grounding.
More comparisons
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Prompt × model results
12 test cases · 3 evals