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Gemini 3.1 Flash Lite Preview vs GPT-4.1 Mini

Updated October 21, 2026. 55 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Gemini 3.1 Flash Lite Preview Replace GPT-4.1 Mini
Gemini 3.1 Flash Lite PreviewGoogle
Coding
8.1
Overall
15.6
Output $/M
$1.50
53
GPT-4.1 MiniOpenAI
Coding
28.5
Overall
10.2
Output $/M
$1.60
2
vs boards won of 55 shared

Decision reading

Pick GPT-4.1 Mini for coding: it scores 28.5 on the Vibe Coding Index against 8.1 for Gemini 3.1 Flash Lite Preview.

Pick Gemini 3.1 Flash Lite Preview when output tokens cost 1.1x less, or when a solved task costs $0.18 against $1.818.

Model AGemini 3.1 Flash Lite PreviewGoogle8.1/1001 independent benchmark$0.18 per solved taskModel BGPT-4.1 MiniOpenAI28.5/1002 independent benchmarks$1.818 per solved task
Shared results
55
Gemini 3.1 Flash Lite Preview only
22
GPT-4.1 Mini only
29
Like-for-like categories
7 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Gemini 3.1 Flash Lite Preview 8.1 from 1 benchmark, GPT-4.1 Mini 28.5 from 2 benchmarks.
Widest category
Math, 19.9 points apart on average over 3 shared benchmarks.
Widest single gap
AIME: Gemini 3.1 Flash Lite Preview 83.3% against GPT-4.1 Mini 49.4%, 33.9 points apart on a 0 to 100 scale.
Output price
Gemini 3.1 Flash Lite Preview $1.50 against GPT-4.1 Mini $1.60 per million output tokens, 1.1x apart.
Context window
Gemini 3.1 Flash Lite Preview takes 1.05M tokens, GPT-4.1 Mini 1.05M.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryGemini 3.1 Flash Lite PreviewBarsGPT-4.1 MiniTies
Coding40
Intelligence10
Reasoning70
Math30
Knowledge81
Web design51
General250
All shared boards532
CodingLike-for-likeFour of these boards feed the Vibe Coding Index40
Coding benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
Aider polyglotNot measured32.4%Only GPT-4.1 Mini measured
SWE-bench VerifiedNot measured23.9%Only GPT-4.1 Mini measured
LMArena WebDev1257Not measuredOnly Gemini 3.1 Flash Lite Preview measured
AA Coding Index34.720.2Gemini 3.1 Flash Lite Preview
LiveCodeBench (Vals AI)80.1%58.2%Gemini 3.1 Flash Lite Preview
SWE-bench Verified (Vals AI)62.8%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Vibe Code Bench (Vals AI)0.0%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Code migration (Vals AI)4.6%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
ProgramBench (Vals AI)0.0%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Terminal-Bench 2.1 (Vals AI)34.1%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
LiveCodeBench (Artificial Analysis run)Not measured48.3%Only GPT-4.1 Mini measured
Terminal-Bench Hard (Artificial Analysis run)Not measured7.6%Only GPT-4.1 Mini measured
WeirdMLNot measured37.6%Only GPT-4.1 Mini measured
ALE-Bench797.7Not measuredOnly Gemini 3.1 Flash Lite Preview measured
LMArena Text: coding14001367Gemini 3.1 Flash Lite Preview
LMArena Text: software and IT14131360Gemini 3.1 Flash Lite Preview
LMArena WebDev: React1245Not measuredOnly Gemini 3.1 Flash Lite Preview measured
LMArena WebDev: HTML1276Not measuredOnly Gemini 3.1 Flash Lite Preview measured
LMArena WebDev: from an image1336Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Neither model has a result on the other 19 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
AA Intelligence Index15.610.2Gemini 3.1 Flash Lite Preview
Epoch Capabilities IndexNot measured134.9Only GPT-4.1 Mini measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Agentic work benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
AA Agentic Index1.6Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Finance Agent (Vals AI)30.0%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Tax Agent Bench (Vals AI)3.1%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Legal Research Bench (Vals AI)3.4%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Excel Modeling Benchmark (Vals AI)8.6%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
τ²-Bench TelecomNot measured52.9%Only GPT-4.1 Mini measured
Neither model has a result on the other 33 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index70
Reasoning benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
GPQA Diamond81.1%67.9%Gemini 3.1 Flash Lite Preview
MMMU Pro (Vals AI)82.5%70.5%Gemini 3.1 Flash Lite Preview
GPQA Diamond (Artificial Analysis run)Not measured66.4%Only GPT-4.1 Mini measured
Humanity's Last Exam (Artificial Analysis run)Not measured5.0%Only GPT-4.1 Mini measured
GPQA Diamond (Epoch AI run)Not measured65.8%Only GPT-4.1 Mini measured
ARC-AGINot measured3.5%Only GPT-4.1 Mini measured
ARC-AGI-2Not measured0.0%Only GPT-4.1 Mini measured
Chess puzzlesNot measured1.0%Only GPT-4.1 Mini measured
Mystery game puzzlesNot measured7.0%Only GPT-4.1 Mini measured
LMArena Text: hard prompts14071349Gemini 3.1 Flash Lite Preview
LMArena Text: expert13981338Gemini 3.1 Flash Lite Preview
LMArena Text: hard prompts in English14031362Gemini 3.1 Flash Lite Preview
LMArena Vision: diagrams12421182Gemini 3.1 Flash Lite Preview
LMArena Vision: homework12711214Gemini 3.1 Flash Lite Preview
Neither model has a result on the other 7 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
AIME83.3%49.4%Gemini 3.1 Flash Lite Preview
MATH 500 (Vals AI)Not measured88.0%Only GPT-4.1 Mini measured
MGSM (Vals AI)Not measured87.8%Only GPT-4.1 Mini measured
AA Math IndexNot measured46.3Only GPT-4.1 Mini measured
AIME 2025 (Artificial Analysis run)Not measured46.3%Only GPT-4.1 Mini measured
OTIS Mock AIMENot measured44.7%Only GPT-4.1 Mini measured
FrontierMath, tiers 1 to 3Not measured6.7%Only GPT-4.1 Mini measured
MATH level 5Not measured87.3%Only GPT-4.1 Mini measured
LMArena Text: math14281343Gemini 3.1 Flash Lite Preview
LMArena Text: mathematical work14171347Gemini 3.1 Flash Lite Preview
Neither model has a result on the other 3 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index81
Knowledge benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
MMLU Pro86.2%77.2%Gemini 3.1 Flash Lite Preview
LegalBench (Vals AI)83.8%78.0%Gemini 3.1 Flash Lite Preview
CaseLaw (Vals AI)55.0%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
CorpFin (Vals AI)59.4%57.9%Gemini 3.1 Flash Lite Preview
TaxEval (Vals AI)71.8%71.9%GPT-4.1 Mini
MortgageTax (Vals AI)68.0%65.5%Gemini 3.1 Flash Lite Preview
MedQA (Vals AI)Not measured84.6%Only GPT-4.1 Mini measured
MedCode (Vals AI)47.6%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
MMLU Pro (Artificial Analysis run)Not measured78.1%Only GPT-4.1 Mini measured
SimpleQA VerifiedNot measured12.7%Only GPT-4.1 Mini measured
LMArena Text: science14251328Gemini 3.1 Flash Lite Preview
LMArena Text: medicine and healthcare14281324Gemini 3.1 Flash Lite Preview
LMArena Text: legal and government14181343Gemini 3.1 Flash Lite Preview
LMArena Text: business and finance13891322Gemini 3.1 Flash Lite Preview
Neither model has a result on the other 3 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index51
Web design benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
Design Arena: websites1083997Gemini 3.1 Flash Lite Preview
Design Arena: UI components1071961Gemini 3.1 Flash Lite Preview
Design Arena: game dev10291071GPT-4.1 Mini
Design Arena: data viz10451034Gemini 3.1 Flash Lite Preview
Design Arena: 3D1048837Gemini 3.1 Flash Lite Preview
Design Arena: all code categories1072994Gemini 3.1 Flash Lite Preview
Design Arena: SVG1052Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Design Arena: ASCII art1166Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index250
General benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
SAGE (Vals AI)49.5%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
MedScribe (Vals AI)63.9%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
Vals Multimodal Index41.4%Not measuredOnly Gemini 3.1 Flash Lite Preview measured
IFBenchNot measured38.3%Only GPT-4.1 Mini measured
Long context reasoning (AA-LCR)Not measured44.0%Only GPT-4.1 Mini measured
DTBenchNot measured68.8%Only GPT-4.1 Mini measured
LMCANot measured21.1%Only GPT-4.1 Mini measured
Fiction.LiveBenchNot measured44.4%Only GPT-4.1 Mini measured
LMArena Text14161341Gemini 3.1 Flash Lite Preview
LMArena Text: instruction following13771333Gemini 3.1 Flash Lite Preview
LMArena Text: creative writing14011299Gemini 3.1 Flash Lite Preview
LMArena Vision12401181Gemini 3.1 Flash Lite Preview
LMArena Text: English14141356Gemini 3.1 Flash Lite Preview
LMArena Text: non-English14101318Gemini 3.1 Flash Lite Preview
LMArena Text: Chinese14601329Gemini 3.1 Flash Lite Preview
LMArena Text: German14301350Gemini 3.1 Flash Lite Preview
LMArena Text: Japanese14131290Gemini 3.1 Flash Lite Preview
LMArena Text: Korean13921298Gemini 3.1 Flash Lite Preview
LMArena Text: French14241358Gemini 3.1 Flash Lite Preview
LMArena Text: Spanish14211319Gemini 3.1 Flash Lite Preview
LMArena Text: Russian14201324Gemini 3.1 Flash Lite Preview
LMArena Text: Polish14431326Gemini 3.1 Flash Lite Preview
LMArena Text: multi-turn14171354Gemini 3.1 Flash Lite Preview
LMArena Text: longer queries13941344Gemini 3.1 Flash Lite Preview
LMArena Text: writing and language14081319Gemini 3.1 Flash Lite Preview
LMArena Text: entertainment and media13861300Gemini 3.1 Flash Lite Preview
LMArena Vision: English12321191Gemini 3.1 Flash Lite Preview
LMArena Vision: Chinese12781186Gemini 3.1 Flash Lite Preview
LMArena Vision: reading text12461188Gemini 3.1 Flash Lite Preview
LMArena Vision: humor12661182Gemini 3.1 Flash Lite Preview
LMArena Vision: captioning12591174Gemini 3.1 Flash Lite Preview
LMArena Vision: recognizing things13081187Gemini 3.1 Flash Lite Preview
LMArena Vision: creative writing12481182Gemini 3.1 Flash Lite Preview
Neither model has a result on the other 13 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
BenchmarkGemini 3.1 Flash Lite PreviewGPT-4.1 MiniLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Gemini 3.1 Flash Lite Preview$0.0010Fits in one request
GPT-4.1 Mini$0.0012Fits in one request

Gemini 3.1 Flash Lite Preview costs less

Repository review

50K input + 3K output tokens

Gemini 3.1 Flash Lite Preview$0.017Fits in one request
GPT-4.1 Mini$0.025Fits in one request

Gemini 3.1 Flash Lite Preview costs less

Agent loop

200K input + 10K output tokens

Gemini 3.1 Flash Lite Preview$0.065Fits in one request
GPT-4.1 Mini$0.096Fits in one request

Gemini 3.1 Flash Lite Preview costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Gemini 3.1 Flash Lite Preview and GPT-4.1 Mini
SpecificationGoogle Gemini 3.1 Flash Lite PreviewOpenAI GPT-4.1 Mini
MakerGoogleOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedMarch 3, 2026April 14, 2025
Context window1.05M1.05M
Input $/Mtok$0.25$0.40
Output $/Mtok$1.50$1.60
Coding index8.128.5
Independent measurements behind it12
Cost per solved task$0.18$1.818
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemini 3.1 Flash Lite Preview better than GPT-4.1 Mini for coding?

Pick GPT-4.1 Mini for coding: it scores 28.5 on the Vibe Coding Index against 8.1 for Gemini 3.1 Flash Lite Preview. Pick Gemini 3.1 Flash Lite Preview when output tokens cost 1.1x less, or when a solved task costs $0.18 against $1.818.

Which is cheaper, Gemini 3.1 Flash Lite Preview or GPT-4.1 Mini?

Gemini 3.1 Flash Lite Preview costs $0.25 per million input tokens and $1.50 per million output tokens; GPT-4.1 Mini costs $0.40 and $1.60. Per solved SWE-bench Verified task, Gemini 3.1 Flash Lite Preview costs $0.18 and GPT-4.1 Mini $1.818.

Which has the bigger context window, Gemini 3.1 Flash Lite Preview or GPT-4.1 Mini?

Gemini 3.1 Flash Lite Preview, with 1.05M tokens against 1.05M.

How many benchmarks is the Gemini 3.1 Flash Lite Preview vs GPT-4.1 Mini comparison based on?

55 benchmarks have a result for both models as of October 21, 2026. Gemini 3.1 Flash Lite Preview's coding index rests on 1 independent benchmark and GPT-4.1 Mini's on 2. Where only one model has a result, the page says so instead of naming a winner.

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