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Gemma 3 27B vs GPT-5.6 Sol

Updated October 21, 2026. 51 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Gemma 3 27BGoogle
Coding
4.9
Overall
4.9
Output $/M
$0.35
0
GPT-5.6 SolOpenAI
Coding
76.7
Overall
47.0
Output $/M
$20.00
51
vs boards won of 51 shared

Decision reading

Pick GPT-5.6 Sol for coding: it scores 76.7 on the Vibe Coding Index against 4.9 for Gemma 3 27B.

Pick Gemma 3 27B when output tokens cost 57.1x less.

Shared results
51
Gemma 3 27B only
11
GPT-5.6 Sol only
85
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 3 27B 4.9 from 1 benchmark, GPT-5.6 Sol 76.7 from 2 benchmarks.
Widest category
Agentic work, 62.3 points apart on average over 2 shared benchmarks.
Widest single gap
OTIS Mock AIME: Gemma 3 27B 22.5% against GPT-5.6 Sol 100.0%, 77.5 points apart on a 0 to 100 scale.
Output price
Gemma 3 27B $0.35 against GPT-5.6 Sol $20.00 per million output tokens, 57.1x apart.
Context window
Gemma 3 27B takes 131K tokens, GPT-5.6 Sol 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
CategoryGemma 3 27BBarsGPT-5.6 SolTies
Coding05
Intelligence02
Agentic work02
Reasoning08
Math03
Knowledge04
General027
All shared boards051
CodingLike-for-likeFour of these boards feed the Vibe Coding Index05
Coding benchmarks for Gemma 3 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
Aider polyglot4.9%Not measuredOnly Gemma 3 27B measured
LiveBench codingNot measured89.7%Only GPT-5.6 Sol measured
LMArena WebDevNot measured1616Only GPT-5.6 Sol measured
AA Coding Index10.177.4GPT-5.6 Sol
LiveCodeBench (Vals AI)Not measured82.6%Only GPT-5.6 Sol measured
SWE-bench Verified (Vals AI)Not measured96.2%Only GPT-5.6 Sol measured
Terminal-Bench 4 (Vals AI)Not measured37.9%Only GPT-5.6 Sol measured
Vibe Code Bench (Vals AI)Not measured80.5%Only GPT-5.6 Sol measured
Code migration (Vals AI)Not measured52.9%Only GPT-5.6 Sol measured
ProgramBench (Vals AI)Not measured1.5%Only GPT-5.6 Sol measured
IOI (Vals AI)Not measured91.2%Only GPT-5.6 Sol measured
Terminal-Bench 2.1 (Vals AI)Not measured85.8%Only GPT-5.6 Sol measured
Vibe Code Bench 1-100 (Vals AI)Not measured20.0%Only GPT-5.6 Sol measured
SkillsBench (Vals AI)Not measured54.1%Only GPT-5.6 Sol measured
CyberBench (Vals AI)Not measured76.3%Only GPT-5.6 Sol measured
LiveCodeBench (Artificial Analysis run)13.7%Not measuredOnly Gemma 3 27B measured
SciCode23.3%57.8%GPT-5.6 Sol
Terminal-Bench Hard (Artificial Analysis run)3.8%65.9%GPT-5.6 Sol
FrontierCodeNot measured47.5%Only GPT-5.6 Sol measured
FrontierSWENot measured32.2%Only GPT-5.6 Sol measured
GSO-BenchNot measured76.5%Only GPT-5.6 Sol measured
WeirdMLNot measured88.8%Only GPT-5.6 Sol measured
MirrorCodeNot measured20.0%Only GPT-5.6 Sol measured
ALE-BenchNot measured2176.9Only GPT-5.6 Sol measured
LMArena Text: coding13221496GPT-5.6 Sol
LMArena Text: software and IT13541489GPT-5.6 Sol
LMArena WebDev: ReactNot measured1620Only GPT-5.6 Sol measured
LMArena WebDev: HTMLNot measured1618Only GPT-5.6 Sol measured
LMArena WebDev: from an imageNot measured1609Only GPT-5.6 Sol measured
Neither model has a result on the other 9 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for Gemma 3 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
AA Intelligence Index4.947.0GPT-5.6 Sol
Epoch Capabilities Index130.0162.8GPT-5.6 Sol
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for Gemma 3 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
AA Agentic Index0.150.2GPT-5.6 Sol
Design Arena: agents building web appsNot measured1245Only GPT-5.6 Sol measured
Design Arena: agents building full-stack appsNot measured1261Only GPT-5.6 Sol measured
Design Arena: agents building mobile appsNot measured1249Only GPT-5.6 Sol measured
Design Arena: agents building Android appsNot measured1246Only GPT-5.6 Sol measured
Design Arena: agents building Godot gamesNot measured1260Only GPT-5.6 Sol measured
Design Arena: agents building gamesNot measured1267Only GPT-5.6 Sol measured
Design Arena: HTML slidesNot measured1286Only GPT-5.6 Sol measured
Design Arena: PowerPoint slidesNot measured1240Only GPT-5.6 Sol measured
LiveBench researchNot measured54.5%Only GPT-5.6 Sol measured
LiveBench browserNot measured88.0%Only GPT-5.6 Sol measured
LiveBench long agenticNot measured48.5%Only GPT-5.6 Sol measured
SREBench (Vals AI)Not measured30.5%Only GPT-5.6 Sol measured
Finance Agent (Vals AI)Not measured53.8%Only GPT-5.6 Sol measured
Tax Agent Bench (Vals AI)Not measured31.1%Only GPT-5.6 Sol measured
Legal Research Bench (Vals AI)Not measured48.1%Only GPT-5.6 Sol measured
Excel Modeling Benchmark (Vals AI)Not measured72.3%Only GPT-5.6 Sol measured
BioMysteryBench (Vals AI)Not measured71.1%Only GPT-5.6 Sol measured
Terminal-Bench-Science (Vals AI)Not measured20.0%Only GPT-5.6 Sol measured
Vals Science IndexNot measured41.5%Only GPT-5.6 Sol measured
Time Horizon Index (Vals AI)Not measured23.8%Only GPT-5.6 Sol measured
CUA-bench (Vals AI)Not measured8.3%Only GPT-5.6 Sol measured
τ²-Bench Telecom10.5%85.1%GPT-5.6 Sol
OSWorld 2.0Not measured27.3%Only GPT-5.6 Sol measured
BALROGNot measured60.0%Only GPT-5.6 Sol measured
PostTrainBenchNot measured36.2%Only GPT-5.6 Sol measured
Vending-Bench 2Not measured$9,619Only GPT-5.6 Sol measured
LMArena SearchNot measured1261Only GPT-5.6 Sol measured
Neither model has a result on the other 11 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index08
Reasoning benchmarks for Gemma 3 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
GPQA DiamondNot measured95.2%Only GPT-5.6 Sol measured
LiveBench reasoningNot measured91.7%Only GPT-5.6 Sol measured
MysteryMechanism (Vals AI)Not measured33.3%Only GPT-5.6 Sol measured
MMMU Pro (Vals AI)Not measured88.8%Only GPT-5.6 Sol measured
GPQA Diamond (Artificial Analysis run)42.8%94.1%GPT-5.6 Sol
Humanity's Last Exam (Artificial Analysis run)4.4%49.5%GPT-5.6 Sol
GPQA Diamond (Epoch AI run)47.7%93.5%GPT-5.6 Sol
ARC-AGINot measured97.5%Only GPT-5.6 Sol measured
ARC-AGI-2Not measured92.5%Only GPT-5.6 Sol measured
SimpleBenchNot measured64.8%Only GPT-5.6 Sol measured
Chess puzzlesNot measured59.0%Only GPT-5.6 Sol measured
Mystery game puzzlesNot measured58.0%Only GPT-5.6 Sol measured
EBR-benchNot measured44.8%Only GPT-5.6 Sol measured
LMArena Text: hard prompts13401483GPT-5.6 Sol
LMArena Text: expert13041517GPT-5.6 Sol
LMArena Text: hard prompts in English13531477GPT-5.6 Sol
LMArena Vision: diagrams11561305GPT-5.6 Sol
LMArena Vision: homework11601305GPT-5.6 Sol
Neither model has a result on the other 3 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index03
Math benchmarks for Gemma 3 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
AA Math Index20.7Not measuredOnly Gemma 3 27B measured
AIME 2025 (Artificial Analysis run)20.7%Not measuredOnly Gemma 3 27B measured
OTIS Mock AIME22.5%100.0%GPT-5.6 Sol
FrontierMath, tiers 1 to 3Not measured89.1%Only GPT-5.6 Sol measured
FrontierMath, tier 4Not measured82.9%Only GPT-5.6 Sol measured
ProofBenchNot measured83.0%Only GPT-5.6 Sol measured
MATH level 574.0%Not measuredOnly Gemma 3 27B measured
LMArena Text: math13121473GPT-5.6 Sol
LMArena Text: mathematical work13271496GPT-5.6 Sol
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 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
MMLU ProNot measured89.1%Only GPT-5.6 Sol measured
LegalBench (Vals AI)Not measured87.0%Only GPT-5.6 Sol measured
CorpFin (Vals AI)Not measured64.4%Only GPT-5.6 Sol measured
TaxEval (Vals AI)Not measured74.8%Only GPT-5.6 Sol measured
MortgageTax (Vals AI)Not measured67.3%Only GPT-5.6 Sol measured
MedCode (Vals AI)Not measured44.0%Only GPT-5.6 Sol measured
MMLU Pro (Artificial Analysis run)66.9%Not measuredOnly Gemma 3 27B measured
SimpleQA VerifiedNot measured69.7%Only GPT-5.6 Sol measured
GeoBench52.0%Not measuredOnly Gemma 3 27B measured
LMArena Text: science13831455GPT-5.6 Sol
LMArena Text: medicine and healthcare13911431GPT-5.6 Sol
LMArena Text: legal and government13751476GPT-5.6 Sol
LMArena Text: business and finance13601457GPT-5.6 Sol
Neither model has a result on the other 4 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
Web design benchmarks for Gemma 3 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
Design Arena: websitesNot measured1321Only GPT-5.6 Sol measured
Design Arena: UI componentsNot measured1338Only GPT-5.6 Sol measured
Design Arena: game devNot measured1368Only GPT-5.6 Sol measured
Design Arena: data vizNot measured1323Only GPT-5.6 Sol measured
Design Arena: 3DNot measured1385Only GPT-5.6 Sol measured
Design Arena: all code categoriesNot measured1341Only GPT-5.6 Sol measured
Design Arena: SVGNot measured1316Only GPT-5.6 Sol measured
Design Arena: ASCII artNot measured1302Only GPT-5.6 Sol measured
LiveBench designNot measured81.6%Only GPT-5.6 Sol measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index027
General benchmarks for Gemma 3 27B and GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
LiveBench data analysisNot measured79.8%Only GPT-5.6 Sol measured
Public Benefits Bench (Vals AI)Not measured66.5%Only GPT-5.6 Sol measured
SAGE (Vals AI)Not measured52.6%Only GPT-5.6 Sol measured
MedScribe (Vals AI)Not measured85.2%Only GPT-5.6 Sol measured
Vals Multimodal IndexNot measured72.6%Only GPT-5.6 Sol measured
IFBench31.8%72.7%GPT-5.6 Sol
Long context reasoning (AA-LCR)7.3%84.0%GPT-5.6 Sol
DTBench52.5%95.7%GPT-5.6 Sol
LMCA12.3%58.5%GPT-5.6 Sol
Fiction.LiveBench33.3%Not measuredOnly Gemma 3 27B measured
Creative writing (Lech Mazur)79.9%Not measuredOnly Gemma 3 27B measured
Surface Evolver BenchNot measured93.1%Only GPT-5.6 Sol measured
Furniture assemblyNot measured56.7%Only GPT-5.6 Sol measured
LMArena Text13581457GPT-5.6 Sol
LMArena Text: instruction following13211483GPT-5.6 Sol
LMArena Text: creative writing13451449GPT-5.6 Sol
LMArena Vision11651281GPT-5.6 Sol
LMArena Text: English13771457GPT-5.6 Sol
LMArena Text: non-English13341451GPT-5.6 Sol
LMArena Text: Chinese13461525GPT-5.6 Sol
LMArena Text: German13621476GPT-5.6 Sol
LMArena Text: Japanese12871472GPT-5.6 Sol
LMArena Text: Korean13081442GPT-5.6 Sol
LMArena Text: French13681472GPT-5.6 Sol
LMArena Text: Spanish13491443GPT-5.6 Sol
LMArena Text: Russian13491471GPT-5.6 Sol
LMArena Text: Polish13451459GPT-5.6 Sol
LMArena Text: multi-turn13451461GPT-5.6 Sol
LMArena Text: longer queries13331481GPT-5.6 Sol
LMArena Text: writing and language13471462GPT-5.6 Sol
LMArena Text: entertainment and media13201450GPT-5.6 Sol
LMArena Vision: English11881280GPT-5.6 Sol
LMArena Vision: Chinese11641313GPT-5.6 Sol
LMArena Vision: reading text11561290GPT-5.6 Sol
LMArena Vision: humor11661246GPT-5.6 Sol
LMArena Vision: captioning1151Not measuredOnly Gemma 3 27B measured
LMArena Vision: recognizing things1196Not measuredOnly Gemma 3 27B measured
LMArena Vision: creative writing11771283GPT-5.6 Sol
LMArena DocumentNot measured1483Only GPT-5.6 Sol measured
Neither model has a result on the other 7 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 GPT-5.6 Sol
BenchmarkGemma 3 27BGPT-5.6 SolLeader
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$0.0003Fits in one request
GPT-5.6 Sol$0.014Fits in one request

Gemma 3 27B costs less

Repository review

50K input + 3K output tokens

Gemma 3 27B$0.0050Fits in one request
GPT-5.6 Sol$0.260Fits in one request

Gemma 3 27B costs less

Agent loop

200K input + 10K output tokens

Gemma 3 27B$0.019Exceeds the context window
GPT-5.6 Sol$1.00Fits in one request

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 GPT-5.6 Sol
SpecificationGoogle Gemma 3 27BOpenAI GPT-5.6 Sol
MakerGoogleOpenAI
WeightsOpen weightsNo public weights listed
ReleasedMarch 12, 2025July 9, 2026
Context window131K1.05M
Input $/Mtok$0.08$4.00
Output $/Mtok$0.35$20.00
Coding index4.976.7
Independent measurements behind it12
Cost per solved taskNot computable$1.20
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemma 3 27B better than GPT-5.6 Sol for coding?

Pick GPT-5.6 Sol for coding: it scores 76.7 on the Vibe Coding Index against 4.9 for Gemma 3 27B. Pick Gemma 3 27B when output tokens cost 57.1x less.

Which is cheaper, Gemma 3 27B or GPT-5.6 Sol?

Gemma 3 27B costs $0.08 per million input tokens and $0.35 per million output tokens; GPT-5.6 Sol costs $4.00 and $20.00. Cost per solved task is known for GPT-5.6 Sol only.

Which has the bigger context window, Gemma 3 27B or GPT-5.6 Sol?

GPT-5.6 Sol, with 1.05M tokens against 131K.

How many benchmarks is the Gemma 3 27B vs GPT-5.6 Sol comparison based on?

51 benchmarks have a result for both models as of October 21, 2026. Gemma 3 27B's coding index rests on 1 independent benchmark and GPT-5.6 Sol's on 2. Where only one model has a result, the page says so instead of naming a winner.

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