Gemini 3 Flash Preview
VS
GPT-5.4 Mini
Gemini 3 Flash Preview 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.
Gemini 3 Flash Preview wins 12 of 22 task areas we tested; GPT-5.4 Mini takes 10. Gemini 3 Flash Preview costs 1.5× less per token ($3.5 vs $5.25 per 1M).
Gemini 3 Flash Preview costs 1.5× less per token ($3.5 vs $5.25 per 1M).
Task by task
| Task area | Gemini 3 Flash Preview | GPT-5.4 Mini | Winner |
|---|---|---|---|
| Training & Education |
#11
/ 110
Excellent
|
#79
/ 110
Strong
|
Gemini 3 Flash Preview |
| Research & Competitive Analysis |
#71
/ 110
Usable
|
#11
/ 110
Excellent
|
GPT-5.4 Mini |
| Product & Project Management |
#69
/ 110
Strong
|
#19
/ 110
Excellent
|
GPT-5.4 Mini |
| Knowledge & Docs |
#49
/ 110
Usable
|
#3
/ 110
Excellent
|
GPT-5.4 Mini |
| Translation & Localization |
#67
/ 110
Excellent
|
#21
/ 110
Excellent
|
GPT-5.4 Mini |
| Content & Brand |
#39
/ 124
Strong
|
#84
/ 124
Usable
|
Gemini 3 Flash Preview |
| Chef / Home Cooking |
#39
/ 126
Usable
|
#83
/ 126
Usable
|
Gemini 3 Flash Preview |
| Summarization & Meeting Notes |
#61
/ 110
Excellent
|
#19
/ 110
Excellent
|
GPT-5.4 Mini |
| Frontend & Landing Pages |
#1
/ 109
Usable
|
#38
/ 109
Needs editing
|
Gemini 3 Flash Preview |
| Presentations & Decks |
#52
/ 110
Excellent
|
#16
/ 110
Excellent
|
GPT-5.4 Mini |
| Structured Output |
#34
/ 113
Excellent
|
#1
/ 113
Excellent
|
GPT-5.4 Mini |
| RAG, Safety & Grounding |
#13
/ 113
Excellent
|
#42
/ 113
Excellent
|
Gemini 3 Flash Preview |
| Legal & HR |
#47
/ 110
Excellent
|
#26
/ 110
Excellent
|
GPT-5.4 Mini |
| Data & Analytics |
#47
/ 110
Excellent
|
#65
/ 110
Excellent
|
Gemini 3 Flash Preview |
| Customer Support |
#34
/ 113
Strong
|
#21
/ 113
Strong
|
GPT-5.4 Mini |
| AI Strategy |
#38
/ 126
Strong
|
#48
/ 126
Strong
|
Gemini 3 Flash Preview |
| Landing Pages |
#35
/ 72
Strong
|
#45
/ 72
Usable
|
Gemini 3 Flash Preview |
| Creative & Comedy | #51 / 110 | #56 / 110 | Gemini 3 Flash Preview |
| Executive Assistant |
#92
/ 112
Usable
|
#87
/ 112
Usable
|
GPT-5.4 Mini |
| Investor & Pitch |
#47
/ 66
Usable
|
#52
/ 66
Usable
|
Gemini 3 Flash Preview |
| Sales |
#35
/ 110
Usable
|
#40
/ 110
Usable
|
Gemini 3 Flash Preview |
| Coding |
#22
/ 115
Strong
|
#24
/ 115
Strong
|
Gemini 3 Flash Preview |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is Gemini 3 Flash Preview better than GPT-5.4 Mini?
Across 22 task areas we benchmarked, Gemini 3 Flash Preview ranks higher in 12 and GPT-5.4 Mini in 10.
Which is cheaper, Gemini 3 Flash Preview or GPT-5.4 Mini?
Gemini 3 Flash Preview costs 1.5× less per token ($3.5 vs $5.25 per 1M).
What is Gemini 3 Flash Preview better at?
Gemini 3 Flash Preview out-ranks GPT-5.4 Mini at Training & Education, Content & Brand, Chef / Home Cooking.
What is GPT-5.4 Mini better at?
GPT-5.4 Mini out-ranks Gemini 3 Flash Preview at Research & Competitive Analysis, Product & Project Management, Knowledge & Docs.
More comparisons
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Prompt × model results
12 test cases · 3 evals