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Gemma 3 27B vs o4 Mini

o4 Mini leads Gemma 3 27B on the Artificial Analysis Intelligence Index, 16.7 to 4.9, and Gemma 3 27B costs 14.7x less per output token ($0.30 vs $4.40 per million). Updated October 22, 2026; 63 benchmarks have a result for both.

Replace Gemma 3 27B Replace o4 Mini
Gemma 3 27BGoogle
Coding
No data
Overall
31.4
Output $/M
$0.30
18
o4 MiniOpenAI
Coding
No data
Overall
43.0
Output $/M
$4.40
45
vs boards won of 63 shared

Gemma 3 27B or o4 Mini: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick Gemma 3 27B for output tokens 14.7x cheaper ($0.30 vs $4.40 per million) and work measured by Aider polyglot or LiveCodeBench (Artificial Analysis run), where it leads.

Model AGemma 3 27BGoogleNot benchmarkedNo coding benchmarkNo cost per solved taskModel Bo4 MiniOpenAINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
63
Gemma 3 27B only
3
o4 Mini only
35
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 27B not benchmarked, o4 Mini not benchmarked.
Widest category
Math, 40.7 points apart on average over 6 shared benchmarks.
Widest single gap
LiveCodeBench (Artificial Analysis run): Gemma 3 27B 13.7% against o4 Mini 85.9%, 72.2 points apart on a 0 to 100 scale.
Output price
Gemma 3 27B $0.30 against o4 Mini $4.40 per million output tokens, 14.7x apart.
Context window
Gemma 3 27B takes 131K tokens, o4 Mini 200K.

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 27BBarso4 MiniTies
Coding06
Intelligence02
Agentic work02
Reasoning09
Math06
Knowledge52
General1318
All shared boards1845
CodingLike-for-likeSix of these boards feed the Vibe Coding Index06
Coding benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
Aider polyglot4.9%72.0%o4 Mini
SWE-bench VerifiedNot measured64.6%Only o4 Mini measured
SWE-bench MultimodalNot measured33.9%Only o4 Mini measured
AA Coding Index10.1Not measuredOnly Gemma 3 27B measured
LiveCodeBench (Vals AI)Not measured82.2%Only o4 Mini measured
LiveCodeBench (Artificial Analysis run)13.7%85.9%o4 Mini
SciCode23.3%Not measuredOnly Gemma 3 27B measured
Terminal-Bench Hard (Artificial Analysis run)3.8%15.2%o4 Mini
GSO-BenchNot measured3.6%Only o4 Mini measured
WeirdMLNot measured52.6%Only o4 Mini measured
LMArena Text: coding13221368o4 Mini
LMArena Text: software and IT13541367o4 Mini
SciCode0.0%10.8%o4 Mini
Neither model has a result on the other 26 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
AA Intelligence Index4.916.7o4 Mini
Epoch Capabilities Index130.0145.5o4 Mini
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
AA Agentic Index0.1Not measuredOnly Gemma 3 27B measured
τ²-Bench Telecom10.5%55.6%o4 Mini
METR time horizonsNot measured63.9%Only o4 Mini measured
Berkeley Function Calling Leaderboard (BFCL)29.5%53.2%o4 Mini
Neither model has a result on the other 37 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index09
Reasoning benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
GPQA DiamondNot measured74.5%Only o4 Mini measured
MMMU Pro (Vals AI)Not measured79.7%Only o4 Mini measured
GPQA Diamond (Artificial Analysis run)42.8%78.4%o4 Mini
Humanity's Last Exam (Artificial Analysis run)4.4%16.5%o4 Mini
GPQA Diamond (Epoch AI run)47.7%79.6%o4 Mini
ARC-AGINot measured58.7%Only o4 Mini measured
ARC-AGI-2Not measured6.1%Only o4 Mini measured
SimpleBenchNot measured38.7%Only o4 Mini measured
Chess puzzlesNot measured22.0%Only o4 Mini measured
Mystery game puzzlesNot measured5.0%Only o4 Mini measured
VPCTNot measured57.5%Only o4 Mini measured
LMArena Text: hard prompts13401351o4 Mini
LMArena Text: expert13041343o4 Mini
LMArena Text: hard prompts in English13531366o4 Mini
LMArena Vision: diagrams11561197o4 Mini
LMArena Vision: homework11601234o4 Mini
Kagi LLM Benchmark35.1%67.6%o4 Mini
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index06
Math benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
AIMENot measured83.7%Only o4 Mini measured
MATH 500 (Vals AI)Not measured94.2%Only o4 Mini measured
MGSM (Vals AI)Not measured93.4%Only o4 Mini measured
AA Math Index20.790.7o4 Mini
AIME 2025 (Artificial Analysis run)20.7%90.7%o4 Mini
OTIS Mock AIME22.5%81.7%o4 Mini
FrontierMath, tiers 1 to 3Not measured36.1%Only o4 Mini measured
FrontierMath, tier 4Not measured4.9%Only o4 Mini measured
MATH level 574.0%97.8%o4 Mini
LMArena Text: math13121389o4 Mini
LMArena Text: mathematical work13271379o4 Mini
Neither model has a result on the other 2 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index52
Knowledge benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
MMLU ProNot measured80.6%Only o4 Mini measured
LegalBench (Vals AI)Not measured79.2%Only o4 Mini measured
CorpFin (Vals AI)Not measured59.0%Only o4 Mini measured
TaxEval (Vals AI)Not measured74.8%Only o4 Mini measured
MortgageTax (Vals AI)Not measured64.8%Only o4 Mini measured
MedQA (Vals AI)Not measured96.0%Only o4 Mini measured
MedCode (Vals AI)Not measured33.8%Only o4 Mini measured
MMLU Pro (Artificial Analysis run)66.9%83.2%o4 Mini
SimpleQA VerifiedNot measured19.6%Only o4 Mini measured
GeoBench52.0%64.0%o4 Mini
LMArena Text: science13831354Gemma 3 27B
LMArena Text: medicine and healthcare13911361Gemma 3 27B
LMArena Text: legal and government13751350Gemma 3 27B
LMArena Text: business and finance13601325Gemma 3 27B
FACTS Benchmark Suite29.1%28.1%Gemma 3 27B
Neither model has a result on the other 3 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Web design benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
Design Arena: websitesNot measured985Only o4 Mini measured
Design Arena: UI componentsNot measured983Only o4 Mini measured
Design Arena: game devNot measured1003Only o4 Mini measured
Design Arena: data vizNot measured991Only o4 Mini measured
Design Arena: 3DNot measured854Only o4 Mini measured
Design Arena: all code categoriesNot measured976Only o4 Mini measured
Neither model has a result on the other 3 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index1318
General benchmarks for Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 MiniLeader
SAGE (Vals AI)Not measured41.1%Only o4 Mini measured
MedScribe (Vals AI)Not measured69.1%Only o4 Mini measured
IFBench31.8%68.7%o4 Mini
Long context reasoning (AA-LCR)7.3%61.0%o4 Mini
DTBench52.5%77.6%o4 Mini
LMCA12.3%26.5%o4 Mini
Fiction.LiveBench33.3%77.8%o4 Mini
Creative writing (Lech Mazur)79.9%75.0%Gemma 3 27B
LMArena Text13581353Gemma 3 27B
LMArena Text: instruction following13211320Gemma 3 27B
LMArena Text: creative writing13451294Gemma 3 27B
LMArena Vision11651194o4 Mini
LMArena Text: English13771367Gemma 3 27B
LMArena Text: non-English13341337o4 Mini
LMArena Text: Chinese13461354o4 Mini
LMArena Text: German13621336Gemma 3 27B
LMArena Text: Japanese12871308o4 Mini
LMArena Text: Korean13081312o4 Mini
LMArena Text: French13681364Gemma 3 27B
LMArena Text: Spanish13491346Gemma 3 27B
LMArena Text: Russian13491334Gemma 3 27B
LMArena Text: Polish13451358o4 Mini
LMArena Text: multi-turn13451350o4 Mini
LMArena Text: longer queries13331315Gemma 3 27B
LMArena Text: writing and language13471316Gemma 3 27B
LMArena Text: entertainment and media13201308Gemma 3 27B
LMArena Vision: English11881200o4 Mini
LMArena Vision: Chinese11641218o4 Mini
LMArena Vision: reading text11561197o4 Mini
LMArena Vision: humor11661199o4 Mini
LMArena Vision: captioning11511204o4 Mini
LMArena Vision: recognizing things11961218o4 Mini
LMArena Vision: creative writing11771166Gemma 3 27B
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 Gemma 3 27B and o4 Mini
BenchmarkGemma 3 27Bo4 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 27B$0.0002Fits in one request
o4 Mini$0.0033Fits in one request

Gemma 3 27B costs less

Repository review

50K input + 3K output tokens

Gemma 3 27B$0.0049Fits in one request
o4 Mini$0.068Fits in one request

Gemma 3 27B costs less

Agent loop

200K input + 10K output tokens

Gemma 3 27B$0.019Exceeds the context window
o4 Mini$0.264Exceeds the context window

Gemma 3 27B 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 27B and o4 Mini
SpecificationGoogle Gemma 3 27BOpenAI o4 Mini
MakerGoogleOpenAI
WeightsOpen weightsNo public weights listed
ReleasedMarch 12, 2025April 16, 2025
Context window131K200K
Input $/Mtok$0.08$1.10
Output $/Mtok$0.30$4.40
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemma 3 27B better than o4 Mini for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Gemma 3 27B for output tokens 14.7x cheaper ($0.30 vs $4.40 per million) and work measured by Aider polyglot or LiveCodeBench (Artificial Analysis run), where it leads.

Which is cheaper, Gemma 3 27B or o4 Mini?

Gemma 3 27B costs $0.08 per million input tokens and $0.30 per million output tokens; o4 Mini costs $1.10 and $4.40. Cost per solved task is known for neither of them.

Which has the bigger context window, Gemma 3 27B or o4 Mini?

o4 Mini, with 200K tokens against 131K.

How many benchmarks is the Gemma 3 27B vs o4 Mini comparison based on?

63 benchmarks have a result for both models as of October 22, 2026. Gemma 3 27B's coding index rests on 0 independent benchmarks and o4 Mini's on 0. Where only one model has a result, the page says so instead of naming a winner.

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