Gemini 3.1 Pro Preview
VS
GPT-5.4 Mini
Gemini 3.1 Pro 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 3.1 Pro Preview wins 16 of 22 task areas we tested; GPT-5.4 Mini takes 6. GPT-5.4 Mini costs 2.7× less per token ($5.25 vs $14 per 1M).
GPT-5.4 Mini costs 2.7× less per token ($5.25 vs $14 per 1M).
Task by task
| Task area | Gemini 3.1 Pro Preview | GPT-5.4 Mini | Winner |
|---|---|---|---|
| Chef / Home Cooking |
#6
/ 126
Strong
|
#83
/ 126
Usable
|
Gemini 3.1 Pro Preview |
| Training & Education |
#4
/ 110
Excellent
|
#79
/ 110
Strong
|
Gemini 3.1 Pro Preview |
| Content & Brand |
#11
/ 124
Strong
|
#84
/ 124
Usable
|
Gemini 3.1 Pro Preview |
| Executive Assistant |
#14
/ 112
Strong
|
#87
/ 112
Usable
|
Gemini 3.1 Pro Preview |
| Creative & Comedy | #4 / 110 | #56 / 110 | Gemini 3.1 Pro Preview |
| Coding |
#64
/ 115
Strong
|
#24
/ 115
Strong
|
GPT-5.4 Mini |
| Investor & Pitch |
#13
/ 66
Strong
|
#52
/ 66
Usable
|
Gemini 3.1 Pro Preview |
| RAG, Safety & Grounding |
#8
/ 113
Excellent
|
#42
/ 113
Excellent
|
Gemini 3.1 Pro Preview |
| Landing Pages |
#14
/ 72
Strong
|
#45
/ 72
Usable
|
Gemini 3.1 Pro Preview |
| Research & Competitive Analysis |
#42
/ 110
Strong
|
#11
/ 110
Excellent
|
GPT-5.4 Mini |
| Data & Analytics |
#39
/ 110
Excellent
|
#65
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Customer Support |
#2
/ 113
Strong
|
#21
/ 113
Strong
|
Gemini 3.1 Pro Preview |
| Knowledge & Docs |
#19
/ 110
Strong
|
#3
/ 110
Excellent
|
GPT-5.4 Mini |
| AI Strategy |
#33
/ 126
Strong
|
#48
/ 126
Strong
|
Gemini 3.1 Pro Preview |
| Summarization & Meeting Notes |
#4
/ 110
Excellent
|
#19
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Structured Output |
#15
/ 113
Excellent
|
#1
/ 113
Excellent
|
GPT-5.4 Mini |
| Legal & HR |
#17
/ 110
Excellent
|
#26
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Presentations & Decks |
#24
/ 110
Excellent
|
#16
/ 110
Excellent
|
GPT-5.4 Mini |
| Sales |
#32
/ 110
Strong
|
#40
/ 110
Usable
|
Gemini 3.1 Pro Preview |
| Translation & Localization |
#14
/ 110
Excellent
|
#21
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Product & Project Management |
#25
/ 110
Excellent
|
#19
/ 110
Excellent
|
GPT-5.4 Mini |
| Frontend & Landing Pages |
#34
/ 109
Needs editing
|
#38
/ 109
Needs editing
|
Gemini 3.1 Pro 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 3.1 Pro Preview better than GPT-5.4 Mini?
Across 22 task areas we benchmarked, Gemini 3.1 Pro Preview ranks higher in 16 and GPT-5.4 Mini in 6.
Which is cheaper, Gemini 3.1 Pro Preview or GPT-5.4 Mini?
GPT-5.4 Mini costs 2.7× less per token ($5.25 vs $14 per 1M).
What is Gemini 3.1 Pro Preview better at?
Gemini 3.1 Pro Preview out-ranks GPT-5.4 Mini at Chef / Home Cooking, Training & Education, Content & Brand.
What is GPT-5.4 Mini better at?
GPT-5.4 Mini out-ranks Gemini 3.1 Pro Preview at Coding, Research & Competitive Analysis, Knowledge & Docs.
More comparisons
This page is Spring Prompt, running in public
We just did this for every model. Do it for your prompt.
The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.
- Generate test cases from your prompt — no eval set required to start.
- Compare models side by side with quality, cost and latency in one matrix.
- Optimise the winner until the scores say it's ready to ship.
Prompt × model results
12 test cases · 3 evals