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Gemma 3 12B vs GPT-5.4 Mini

GPT-5.4 Mini leads Gemma 3 12B on the Artificial Analysis Intelligence Index, 24.1 to 3.8, and Gemma 3 12B costs 27.7x less per output token ($0.1625 vs $4.50 per million). Updated October 22, 2026; 37 benchmarks have a result for both.

Replace Gemma 3 12B Replace GPT-5.4 Mini
Gemma 3 12BGoogle
Coding
No data
Overall
28.0
Output $/M
$0.1625
0
GPT-5.4 MiniOpenAI
Coding
35.8
Overall
44.0
Output $/M
$4.50
37
vs boards won of 37 shared

Gemma 3 12B or GPT-5.4 Mini: which to pick

Only GPT-5.4 Mini has a coding score, 35.8 on the Vibe Coding Index; Gemma 3 12B has none, so the two cannot be ranked on coding.

Pick Gemma 3 12B for output tokens 27.7x cheaper ($0.1625 vs $4.50 per million).

Model AGemma 3 12BGoogleNot benchmarkedNo coding benchmarkNo cost per solved taskModel BGPT-5.4 MiniOpenAI35.8/1005 independent benchmarks$0.70 per solved task
Shared results
37
Gemma 3 12B only
6
GPT-5.4 Mini only
52
Like-for-like categories
7 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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
Gemma 3 12B not benchmarked, GPT-5.4 Mini 35.8 from 5 benchmarks.
Widest category
Agentic work, 45.2 points apart on average over 2 shared benchmarks.
Widest single gap
τ²-Bench Telecom: Gemma 3 12B 10.8% against GPT-5.4 Mini 83.3%, 72.5 points apart on a 0 to 100 scale.
Output price
Gemma 3 12B $0.1625 against GPT-5.4 Mini $4.50 per million output tokens, 27.7x apart.
Context window
Gemma 3 12B takes 131K tokens, GPT-5.4 Mini 400K.

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
CategoryGemma 3 12BBarsGPT-5.4 MiniTies
Coding05
Intelligence02
Agentic work02
Reasoning06
Math03
Knowledge04
General015
All shared boards037
CodingLike-for-likeSix of these boards feed the Vibe Coding Index05
Coding benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
LMArena WebDevNot measured1397Only GPT-5.4 Mini measured
AA Coding Index5.856.1GPT-5.4 Mini
LiveCodeBench (Vals AI)Not measured81.5%Only GPT-5.4 Mini measured
SWE-bench Verified (Vals AI)Not measured73.0%Only GPT-5.4 Mini measured
Terminal-Bench 4 (Vals AI)Not measured2.5%Only GPT-5.4 Mini measured
Vibe Code Bench (Vals AI)Not measured48.0%Only GPT-5.4 Mini measured
Code migration (Vals AI)Not measured12.9%Only GPT-5.4 Mini measured
ProgramBench (Vals AI)Not measured0.0%Only GPT-5.4 Mini measured
Terminal-Bench 2.1 (Vals AI)Not measured54.7%Only GPT-5.4 Mini measured
LiveCodeBench (Artificial Analysis run)13.7%Not measuredOnly Gemma 3 12B measured
SciCode16.4%52.1%GPT-5.4 Mini
Terminal-Bench Hard (Artificial Analysis run)0.8%52.3%GPT-5.4 Mini
FrontierCodeNot measured27.0%Only GPT-5.4 Mini measured
WeirdMLNot measured60.3%Only GPT-5.4 Mini measured
ALE-BenchNot measured1188.6Only GPT-5.4 Mini measured
LMArena Text: coding12811438GPT-5.4 Mini
LMArena Text: software and IT13131436GPT-5.4 Mini
LMArena WebDev: ReactNot measured1386Only GPT-5.4 Mini measured
LMArena WebDev: HTMLNot measured1419Only GPT-5.4 Mini measured
SciCode0.0%Not measuredOnly Gemma 3 12B measured
Neither model has a result on the other 19 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
AA Intelligence Index3.824.1GPT-5.4 Mini
Epoch Capabilities Index123.5148.7GPT-5.4 Mini
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
AA Agentic Index0.117.9GPT-5.4 Mini
Finance Agent (Vals AI)Not measured45.4%Only GPT-5.4 Mini measured
Tax Agent Bench (Vals AI)Not measured8.8%Only GPT-5.4 Mini measured
Legal Research Bench (Vals AI)Not measured12.5%Only GPT-5.4 Mini measured
Excel Modeling Benchmark (Vals AI)Not measured45.4%Only GPT-5.4 Mini measured
τ²-Bench Telecom10.8%83.3%GPT-5.4 Mini
DeepResearch BenchNot measured36.3%Only GPT-5.4 Mini measured
Berkeley Function Calling Leaderboard (BFCL)30.4%Not measuredOnly Gemma 3 12B measured
Neither model has a result on the other 33 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index06
Reasoning benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
GPQA DiamondNot measured83.1%Only GPT-5.4 Mini measured
MMMU Pro (Vals AI)Not measured79.3%Only GPT-5.4 Mini measured
GPQA Diamond (Artificial Analysis run)34.9%87.5%GPT-5.4 Mini
Humanity's Last Exam (Artificial Analysis run)4.2%28.1%GPT-5.4 Mini
GPQA Diamond (Epoch AI run)39.5%86.9%GPT-5.4 Mini
ARC-AGINot measured63.7%Only GPT-5.4 Mini measured
ARC-AGI-2Not measured18.9%Only GPT-5.4 Mini measured
Chess puzzlesNot measured23.0%Only GPT-5.4 Mini measured
Mystery game puzzlesNot measured11.0%Only GPT-5.4 Mini measured
LMArena Text: hard prompts13091424GPT-5.4 Mini
LMArena Text: expert12481435GPT-5.4 Mini
LMArena Text: hard prompts in English13181420GPT-5.4 Mini
LMArena Vision: diagramsNot measured1266Only GPT-5.4 Mini measured
LMArena Vision: homeworkNot measured1285Only GPT-5.4 Mini measured
Kagi LLM BenchmarkNot measured37.9%Only GPT-5.4 Mini measured
Neither model has a result on the other 7 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index03
Math benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
AIMENot measured95.6%Only GPT-5.4 Mini measured
AA Math Index18.3Not measuredOnly Gemma 3 12B measured
AIME 2025 (Artificial Analysis run)18.3%Not measuredOnly Gemma 3 12B measured
OTIS Mock AIME16.7%88.9%GPT-5.4 Mini
FrontierMath, tiers 1 to 3Not measured51.2%Only GPT-5.4 Mini measured
FrontierMath, tier 4Not measured9.8%Only GPT-5.4 Mini measured
ProofBenchNot measured21.0%Only GPT-5.4 Mini measured
LMArena Text: math13071418GPT-5.4 Mini
LMArena Text: mathematical work13361429GPT-5.4 Mini
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
Knowledge benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
MMLU ProNot measured84.5%Only GPT-5.4 Mini measured
CaseLaw (Vals AI)Not measured51.7%Only GPT-5.4 Mini measured
CorpFin (Vals AI)Not measured60.9%Only GPT-5.4 Mini measured
TaxEval (Vals AI)Not measured71.2%Only GPT-5.4 Mini measured
MortgageTax (Vals AI)Not measured63.5%Only GPT-5.4 Mini measured
MMLU Pro (Artificial Analysis run)59.5%Not measuredOnly Gemma 3 12B measured
SimpleQA VerifiedNot measured29.4%Only GPT-5.4 Mini measured
LMArena Text: science13661417GPT-5.4 Mini
LMArena Text: medicine and healthcare13341395GPT-5.4 Mini
LMArena Text: legal and government13811414GPT-5.4 Mini
LMArena Text: business and finance13761418GPT-5.4 Mini
Neither model has a result on the other 7 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index015
General benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 MiniLeader
SAGE (Vals AI)Not measured50.8%Only GPT-5.4 Mini measured
Vals Multimodal IndexNot measured54.2%Only GPT-5.4 Mini measured
IFBench36.7%73.3%GPT-5.4 Mini
Long context reasoning (AA-LCR)8.3%77.0%GPT-5.4 Mini
DTBench48.8%80.0%GPT-5.4 Mini
LMCA4.5%40.8%GPT-5.4 Mini
LMArena Text13341412GPT-5.4 Mini
LMArena Text: instruction following12991405GPT-5.4 Mini
LMArena Text: creative writing13311370GPT-5.4 Mini
LMArena VisionNot measured1245Only GPT-5.4 Mini measured
LMArena Text: English13491412GPT-5.4 Mini
LMArena Text: non-English13181405GPT-5.4 Mini
LMArena Text: ChineseNot measured1446Only GPT-5.4 Mini measured
LMArena Text: German13701408GPT-5.4 Mini
LMArena Text: JapaneseNot measured1375Only GPT-5.4 Mini measured
LMArena Text: KoreanNot measured1370Only GPT-5.4 Mini measured
LMArena Text: FrenchNot measured1441Only GPT-5.4 Mini measured
LMArena Text: SpanishNot measured1405Only GPT-5.4 Mini measured
LMArena Text: Russian13351417GPT-5.4 Mini
LMArena Text: PolishNot measured1415Only GPT-5.4 Mini measured
LMArena Text: multi-turn13341429GPT-5.4 Mini
LMArena Text: longer queries13171408GPT-5.4 Mini
LMArena Text: writing and language13071393GPT-5.4 Mini
LMArena Text: entertainment and media12971373GPT-5.4 Mini
LMArena Vision: EnglishNot measured1244Only GPT-5.4 Mini measured
LMArena Vision: ChineseNot measured1286Only GPT-5.4 Mini measured
LMArena Vision: reading textNot measured1253Only GPT-5.4 Mini measured
LMArena Vision: humorNot measured1235Only GPT-5.4 Mini measured
LMArena Vision: recognizing thingsNot measured1218Only GPT-5.4 Mini measured
LMArena Vision: creative writingNot measured1222Only GPT-5.4 Mini measured
Neither model has a result on the other 16 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemma 3 12B and GPT-5.4 Mini
BenchmarkGemma 3 12BGPT-5.4 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

Gemma 3 12B$0.0002Fits in one request
GPT-5.4 Mini$0.0030Fits in one request

Gemma 3 12B costs less

Repository review

50K input + 3K output tokens

Gemma 3 12B$0.0042Fits in one request
GPT-5.4 Mini$0.051Fits in one request

Gemma 3 12B costs less

Agent loop

200K input + 10K output tokens

Gemma 3 12B$0.017Exceeds the context window
GPT-5.4 Mini$0.195Fits in one request

Gemma 3 12B 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 Gemma 3 12B and GPT-5.4 Mini
SpecificationGoogle Gemma 3 12BOpenAI GPT-5.4 Mini
MakerGoogleOpenAI
WeightsOpen weightsNo public weights listed
ReleasedMarch 13, 2025March 17, 2026
Context window131K400K
Input $/Mtok$0.075$0.75
Output $/Mtok$0.1625$4.50
Coding indexNot benchmarked35.8
Independent measurements behind it05
Cost per solved taskNot computable$0.70
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemma 3 12B better than GPT-5.4 Mini for coding?

Only GPT-5.4 Mini has a coding score, 35.8 on the Vibe Coding Index; Gemma 3 12B has none, so the two cannot be ranked on coding. Pick Gemma 3 12B for output tokens 27.7x cheaper ($0.1625 vs $4.50 per million).

Which is cheaper, Gemma 3 12B or GPT-5.4 Mini?

Gemma 3 12B costs $0.075 per million input tokens and $0.1625 per million output tokens; GPT-5.4 Mini costs $0.75 and $4.50. Cost per solved task is known for GPT-5.4 Mini only.

Which has the bigger context window, Gemma 3 12B or GPT-5.4 Mini?

GPT-5.4 Mini, with 400K tokens against 131K.

How many benchmarks is the Gemma 3 12B vs GPT-5.4 Mini comparison based on?

37 benchmarks have a result for both models as of October 22, 2026. Gemma 3 12B's coding index rests on 0 independent benchmarks and GPT-5.4 Mini's on 5. Where only one model has a result, the page says so instead of naming a winner.

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