Gemini 3.1 Flash Lite
VS
GPT-5 Mini
Gemini 3.1 Flash Lite vs GPT-5 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 Flash Lite wins 13 of 22 task areas we tested; GPT-5 Mini takes 9. Gemini 3.1 Flash Lite costs 1.3× less per token ($1.75 vs $2.25 per 1M).
Gemini 3.1 Flash Lite costs 1.3× less per token ($1.75 vs $2.25 per 1M).
Task by task
| Task area | Gemini 3.1 Flash Lite | GPT-5 Mini | Winner |
|---|---|---|---|
| Legal & HR |
#86
/ 110
Strong
|
#10
/ 110
Excellent
|
GPT-5 Mini |
| Summarization & Meeting Notes |
#13
/ 110
Excellent
|
#81
/ 110
Excellent
|
Gemini 3.1 Flash Lite |
| Customer Support |
#54
/ 113
Strong
|
#104
/ 113
Usable
|
Gemini 3.1 Flash Lite |
| Training & Education |
#33
/ 110
Excellent
|
#81
/ 110
Strong
|
Gemini 3.1 Flash Lite |
| AI Strategy |
#54
/ 126
Strong
|
#100
/ 126
Usable
|
Gemini 3.1 Flash Lite |
| Presentations & Decks |
#80
/ 110
Strong
|
#39
/ 110
Excellent
|
GPT-5 Mini |
| Research & Competitive Analysis |
#56
/ 110
Usable
|
#21
/ 110
Excellent
|
GPT-5 Mini |
| Sales |
#67
/ 110
Usable
|
#102
/ 110
Needs editing
|
Gemini 3.1 Flash Lite |
| Product & Project Management |
#29
/ 110
Excellent
|
#1
/ 110
Excellent
|
GPT-5 Mini |
| Content & Brand |
#43
/ 124
Strong
|
#69
/ 124
Strong
|
Gemini 3.1 Flash Lite |
| Chef / Home Cooking |
#70
/ 126
Usable
|
#45
/ 126
Usable
|
GPT-5 Mini |
| Coding |
#58
/ 115
Strong
|
#37
/ 115
Strong
|
GPT-5 Mini |
| RAG, Safety & Grounding |
#58
/ 113
Excellent
|
#78
/ 113
Excellent
|
Gemini 3.1 Flash Lite |
| Structured Output |
#36
/ 113
Excellent
|
#17
/ 113
Excellent
|
GPT-5 Mini |
| Data & Analytics |
#44
/ 110
Excellent
|
#27
/ 110
Excellent
|
GPT-5 Mini |
| Creative & Comedy | #85 / 110 | #70 / 110 | GPT-5 Mini |
| Translation & Localization |
#39
/ 110
Excellent
|
#52
/ 110
Excellent
|
Gemini 3.1 Flash Lite |
| Knowledge & Docs |
#33
/ 110
Strong
|
#41
/ 110
Strong
|
Gemini 3.1 Flash Lite |
| Executive Assistant |
#101
/ 112
Usable
|
#108
/ 112
Usable
|
Gemini 3.1 Flash Lite |
| Landing Pages |
#43
/ 72
Strong
|
#50
/ 72
Usable
|
Gemini 3.1 Flash Lite |
| Investor & Pitch |
#44
/ 66
Usable
|
#50
/ 66
Usable
|
Gemini 3.1 Flash Lite |
| Frontend & Landing Pages |
#10
/ 109
Usable
|
#12
/ 109
Needs editing
|
Gemini 3.1 Flash Lite |
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 Flash Lite better than GPT-5 Mini?
Across 22 task areas we benchmarked, Gemini 3.1 Flash Lite ranks higher in 13 and GPT-5 Mini in 9.
Which is cheaper, Gemini 3.1 Flash Lite or GPT-5 Mini?
Gemini 3.1 Flash Lite costs 1.3× less per token ($1.75 vs $2.25 per 1M).
What is Gemini 3.1 Flash Lite better at?
Gemini 3.1 Flash Lite out-ranks GPT-5 Mini at Summarization & Meeting Notes, Customer Support, Training & Education.
What is GPT-5 Mini better at?
GPT-5 Mini out-ranks Gemini 3.1 Flash Lite at Legal & HR, Presentations & Decks, Research & Competitive Analysis.
More comparisons
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Prompt × model results
12 test cases · 3 evals