LLMBenchmark.ai

Enter opens the highlighted result. Esc closes.

Gemma 4 26B A4B vs o3 Mini

Updated October 21, 2026. 38 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Gemma 4 26B A4B Replace o3 Mini
Gemma 4 26B A4BGoogle
Coding
22.8
Overall
16.7
Output $/M
$0.255
35
o3 MiniOpenAI
Coding
52.1
Overall
12.5
Output $/M
$4.40
3
vs boards won of 38 shared

Decision reading

Pick o3 Mini for coding: it scores 52.1 on the Vibe Coding Index against 22.8 for Gemma 4 26B A4B.

Pick Gemma 4 26B A4B when output tokens cost 17.3x less, or when the context window is larger, 262K against 200K tokens.

Model AGemma 4 26B A4BGoogle22.8/1001 independent benchmarkNo cost per solved taskModel Bo3 MiniOpenAI52.1/1002 independent benchmarksNo cost per solved task
Shared results
38
Gemma 4 26B A4B only
16
o3 Mini only
32
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
Gemma 4 26B A4B 22.8 from 1 benchmark, o3 Mini 52.1 from 2 benchmarks.
Widest category
Knowledge, 18.7 points apart on average over 4 shared benchmarks.
Widest single gap
Long context reasoning (AA-LCR): Gemma 4 26B A4B 65.7% against o3 Mini 43.0%, 22.7 points apart on a 0 to 100 scale.
Output price
Gemma 4 26B A4B $0.255 against o3 Mini $4.40 per million output tokens, 17.3x apart.
Context window
Gemma 4 26B A4B takes 262K tokens, o3 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 4 26B A4BBarso3 MiniTies
Coding32
Intelligence20
Agentic work10
Reasoning51
Math30
Knowledge40
General170
All shared boards353
CodingLike-for-likeFour of these boards feed the Vibe Coding Index32
Coding benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
Aider polyglotNot measured60.4%Only o3 Mini measured
SWE-bench VerifiedNot measured42.4%Only o3 Mini measured
SWE-bench LiteNot measured32.3%Only o3 Mini measured
LMArena WebDev1360Not measuredOnly Gemma 4 26B A4B measured
AA Coding Index39.3Not measuredOnly Gemma 4 26B A4B measured
LiveCodeBench (Vals AI)Not measured71.5%Only o3 Mini measured
LiveCodeBench (Artificial Analysis run)Not measured73.4%Only o3 Mini measured
SciCode40.0%42.8%o3 Mini
Terminal-Bench Hard (Artificial Analysis run)25.0%6.8%Gemma 4 26B A4B
GSO-BenchNot measured1.3%Only o3 Mini measured
WeirdML35.2%43.7%o3 Mini
CybenchNot measured22.5%Only o3 Mini measured
ALE-Bench927.2Not measuredOnly Gemma 4 26B A4B measured
LMArena Text: coding14461378Gemma 4 26B A4B
LMArena Text: software and IT14541364Gemma 4 26B A4B
LMArena WebDev: React1351Not measuredOnly Gemma 4 26B A4B measured
LMArena WebDev: HTML1362Not measuredOnly Gemma 4 26B A4B measured
Neither model has a result on the other 21 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
AA Intelligence Index16.712.5Gemma 4 26B A4B
Epoch Capabilities Index141.9140.2Gemma 4 26B A4B
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
AA Agentic Index2.9Not measuredOnly Gemma 4 26B A4B measured
τ²-Bench Telecom43.6%31.3%Gemma 4 26B A4B
Neither model has a result on the other 37 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index51
Reasoning benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
GPQA DiamondNot measured75.5%Only o3 Mini measured
GPQA Diamond (Artificial Analysis run)79.2%77.3%Gemma 4 26B A4B
Humanity's Last Exam (Artificial Analysis run)19.3%12.0%Gemma 4 26B A4B
GPQA Diamond (Epoch AI run)73.2%77.0%o3 Mini
ARC-AGINot measured34.5%Only o3 Mini measured
ARC-AGI-2Not measured3.0%Only o3 Mini measured
SimpleBenchNot measured22.8%Only o3 Mini measured
Chess puzzlesNot measured15.0%Only o3 Mini measured
Mystery game puzzlesNot measured7.0%Only o3 Mini measured
LMArena Text: hard prompts14381365Gemma 4 26B A4B
LMArena Text: expert14471364Gemma 4 26B A4B
LMArena Text: hard prompts in English14481375Gemma 4 26B A4B
LMArena Vision: diagrams1264Not measuredOnly Gemma 4 26B A4B measured
LMArena Vision: homework1293Not measuredOnly Gemma 4 26B A4B measured
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 Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
AIMENot measured86.5%Only o3 Mini measured
MATH 500 (Vals AI)Not measured91.8%Only o3 Mini measured
MGSM (Vals AI)Not measured91.3%Only o3 Mini measured
OTIS Mock AIME82.2%76.9%Gemma 4 26B A4B
FrontierMath, tiers 1 to 3Not measured18.6%Only o3 Mini measured
FrontierMath, tier 4Not measured0.0%Only o3 Mini measured
MATH level 5Not measured96.5%Only o3 Mini measured
LMArena Text: math14701396Gemma 4 26B A4B
LMArena Text: mathematical work14751399Gemma 4 26B A4B
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
MMLU ProNot measured78.7%Only o3 Mini measured
LegalBench (Vals AI)Not measured71.5%Only o3 Mini measured
CorpFin (Vals AI)Not measured45.3%Only o3 Mini measured
TaxEval (Vals AI)Not measured69.4%Only o3 Mini measured
MedQA (Vals AI)Not measured94.8%Only o3 Mini measured
MMLU Pro (Artificial Analysis run)Not measured80.2%Only o3 Mini measured
SimpleQA VerifiedNot measured15.3%Only o3 Mini measured
LMArena Text: science14461339Gemma 4 26B A4B
LMArena Text: medicine and healthcare14281330Gemma 4 26B A4B
LMArena Text: legal and government14571328Gemma 4 26B A4B
LMArena Text: business and finance14291313Gemma 4 26B A4B
Neither model has a result on the other 6 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index170
General benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 MiniLeader
IFBench72.4%67.1%Gemma 4 26B A4B
Long context reasoning (AA-LCR)65.7%43.0%Gemma 4 26B A4B
DTBench74.9%68.8%Gemma 4 26B A4B
LMCA29.7%19.0%Gemma 4 26B A4B
Fiction.LiveBenchNot measured50.0%Only o3 Mini measured
Creative writing (Lech Mazur)Not measured61.7%Only o3 Mini measured
LMArena Text14341337Gemma 4 26B A4B
LMArena Text: instruction following14201337Gemma 4 26B A4B
LMArena Text: creative writing14001286Gemma 4 26B A4B
LMArena Vision1260Not measuredOnly Gemma 4 26B A4B measured
LMArena Text: English14441351Gemma 4 26B A4B
LMArena Text: non-English14211319Gemma 4 26B A4B
LMArena Text: Chinese14951379Gemma 4 26B A4B
LMArena Text: GermanNot measured1303Only o3 Mini measured
LMArena Text: JapaneseNot measured1286Only o3 Mini measured
LMArena Text: KoreanNot measured1313Only o3 Mini measured
LMArena Text: French14601334Gemma 4 26B A4B
LMArena Text: Spanish14151321Gemma 4 26B A4B
LMArena Text: Russian14341304Gemma 4 26B A4B
LMArena Text: PolishNot measured1294Only o3 Mini measured
LMArena Text: multi-turn14411320Gemma 4 26B A4B
LMArena Text: longer queries14271343Gemma 4 26B A4B
LMArena Text: writing and language14051313Gemma 4 26B A4B
LMArena Text: entertainment and media14031283Gemma 4 26B A4B
LMArena Vision: English1256Not measuredOnly Gemma 4 26B A4B measured
LMArena Vision: Chinese1312Not measuredOnly Gemma 4 26B A4B measured
LMArena Vision: reading text1268Not measuredOnly Gemma 4 26B A4B measured
LMArena Vision: humor1272Not measuredOnly Gemma 4 26B A4B measured
LMArena Vision: captioning1297Not measuredOnly Gemma 4 26B A4B measured
LMArena Vision: recognizing things1191Not measuredOnly Gemma 4 26B A4B measured
LMArena Vision: creative writing1256Not measuredOnly Gemma 4 26B A4B measured
Neither model has a result on the other 15 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemma 4 26B A4B and o3 Mini
BenchmarkGemma 4 26B A4Bo3 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 4 26B A4B$0.0002Fits in one request
o3 Mini$0.0033Fits in one request

Gemma 4 26B A4B costs less

Repository review

50K input + 3K output tokens

Gemma 4 26B A4B$0.0046Fits in one request
o3 Mini$0.068Fits in one request

Gemma 4 26B A4B costs less

Agent loop

200K input + 10K output tokens

Gemma 4 26B A4B$0.018Fits in one request
o3 Mini$0.264Exceeds the context window

Gemma 4 26B A4B 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 4 26B A4B and o3 Mini
SpecificationGoogle Gemma 4 26B A4BOpenAI o3 Mini
MakerGoogleOpenAI
WeightsOpen weightsNo public weights listed
ReleasedApril 3, 2026January 31, 2025
Context window262K200K
Input $/Mtok$0.0765$1.10
Output $/Mtok$0.255$4.40
Coding index22.852.1
Independent measurements behind it12
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemma 4 26B A4B better than o3 Mini for coding?

Pick o3 Mini for coding: it scores 52.1 on the Vibe Coding Index against 22.8 for Gemma 4 26B A4B. Pick Gemma 4 26B A4B when output tokens cost 17.3x less, or when the context window is larger, 262K against 200K tokens.

Which is cheaper, Gemma 4 26B A4B or o3 Mini?

Gemma 4 26B A4B costs $0.0765 per million input tokens and $0.255 per million output tokens; o3 Mini costs $1.10 and $4.40. Cost per solved task is known for neither of them.

Which has the bigger context window, Gemma 4 26B A4B or o3 Mini?

Gemma 4 26B A4B, with 262K tokens against 200K.

How many benchmarks is the Gemma 4 26B A4B vs o3 Mini comparison based on?

38 benchmarks have a result for both models as of October 21, 2026. Gemma 4 26B A4B's coding index rests on 1 independent benchmark and o3 Mini's on 2. Where only one model has a result, the page says so instead of naming a winner.

Compare next