Gemini 3 Flash Preview
VS
Gemini 3.1 Pro Preview
Gemini 3 Flash Preview vs Gemini 3.1 Pro Preview: 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 20 of 22 task areas we tested; Gemini 3 Flash Preview takes 2. Gemini 3 Flash Preview costs 4.0× less per token ($3.5 vs $14 per 1M).
Gemini 3 Flash Preview costs 4.0× less per token ($3.5 vs $14 per 1M).
Task by task
| Task area | Gemini 3 Flash Preview | Gemini 3.1 Pro Preview | Winner |
|---|---|---|---|
| Executive Assistant |
#92
/ 112
Usable
|
#14
/ 112
Strong
|
Gemini 3.1 Pro Preview |
| Summarization & Meeting Notes |
#61
/ 110
Excellent
|
#4
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Translation & Localization |
#67
/ 110
Excellent
|
#14
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Creative & Comedy | #51 / 110 | #4 / 110 | Gemini 3.1 Pro Preview |
| Product & Project Management |
#69
/ 110
Strong
|
#25
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Coding |
#22
/ 115
Strong
|
#64
/ 115
Strong
|
Gemini 3 Flash Preview |
| Investor & Pitch |
#47
/ 66
Usable
|
#13
/ 66
Strong
|
Gemini 3.1 Pro Preview |
| Chef / Home Cooking |
#39
/ 126
Usable
|
#6
/ 126
Strong
|
Gemini 3.1 Pro Preview |
| Frontend & Landing Pages |
#1
/ 109
Usable
|
#34
/ 109
Needs editing
|
Gemini 3 Flash Preview |
| Customer Support |
#34
/ 113
Strong
|
#2
/ 113
Strong
|
Gemini 3.1 Pro Preview |
| Knowledge & Docs |
#49
/ 110
Usable
|
#19
/ 110
Strong
|
Gemini 3.1 Pro Preview |
| Legal & HR |
#47
/ 110
Excellent
|
#17
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Research & Competitive Analysis |
#71
/ 110
Usable
|
#42
/ 110
Strong
|
Gemini 3.1 Pro Preview |
| Content & Brand |
#39
/ 124
Strong
|
#11
/ 124
Strong
|
Gemini 3.1 Pro Preview |
| Presentations & Decks |
#52
/ 110
Excellent
|
#24
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Landing Pages |
#35
/ 72
Strong
|
#14
/ 72
Strong
|
Gemini 3.1 Pro Preview |
| Structured Output |
#34
/ 113
Excellent
|
#15
/ 113
Excellent
|
Gemini 3.1 Pro Preview |
| Data & Analytics |
#47
/ 110
Excellent
|
#39
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| Training & Education |
#11
/ 110
Excellent
|
#4
/ 110
Excellent
|
Gemini 3.1 Pro Preview |
| AI Strategy |
#38
/ 126
Strong
|
#33
/ 126
Strong
|
Gemini 3.1 Pro Preview |
| RAG, Safety & Grounding |
#13
/ 113
Excellent
|
#8
/ 113
Excellent
|
Gemini 3.1 Pro Preview |
| Sales |
#35
/ 110
Usable
|
#32
/ 110
Strong
|
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 Flash Preview better than Gemini 3.1 Pro Preview?
Across 22 task areas we benchmarked, Gemini 3.1 Pro Preview ranks higher in 20 and Gemini 3 Flash Preview in 2.
Which is cheaper, Gemini 3 Flash Preview or Gemini 3.1 Pro Preview?
Gemini 3 Flash Preview costs 4.0× less per token ($3.5 vs $14 per 1M).
What is Gemini 3 Flash Preview better at?
Gemini 3 Flash Preview out-ranks Gemini 3.1 Pro Preview at Coding, Frontend & Landing Pages.
What is Gemini 3.1 Pro Preview better at?
Gemini 3.1 Pro Preview out-ranks Gemini 3 Flash Preview at Executive Assistant, Summarization & Meeting Notes, Translation & Localization.
More comparisons
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Prompt × model results
12 test cases · 3 evals