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Claude Opus 4.1 vs Gemma 3 12B

Claude Opus 4.1 leads Gemma 3 12B on the Artificial Analysis Intelligence Index, 22.8 to 3.8, and Gemma 3 12B costs 461.5x less per output token ($0.1625 vs $75.00 per million). Updated October 22, 2026; 29 benchmarks have a result for both.

Replace Claude Opus 4.1 Replace Gemma 3 12B
Claude Opus 4.1Anthropic
Coding
No data
Overall
50.2
Output $/M
$75.00
29
Gemma 3 12BGoogle
Coding
No data
Overall
28.0
Output $/M
$0.1625
0
vs boards won of 29 shared

Claude Opus 4.1 or Gemma 3 12B: which to pick

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

Pick Claude Opus 4.1 for a larger context window (200K against 131K tokens).

Model AClaude Opus 4.1AnthropicNot benchmarked1 independent benchmarkNo cost per solved taskModel BGemma 3 12BGoogleNot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
29
Claude Opus 4.1 only
44
Gemma 3 12B only
14
Like-for-like categories
6 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
Claude Opus 4.1 not benchmarked, Gemma 3 12B not benchmarked.
Widest category
Math, 29.7 points apart on average over 3 shared benchmarks.
Widest single gap
OTIS Mock AIME: Claude Opus 4.1 68.9% against Gemma 3 12B 16.7%, 52.2 points apart on a 0 to 100 scale.
Output price
Claude Opus 4.1 $75.00 against Gemma 3 12B $0.1625 per million output tokens, 461.5x apart.
Context window
Claude Opus 4.1 takes 200K tokens, Gemma 3 12B 131K.

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
CategoryClaude Opus 4.1BarsGemma 3 12BTies
Coding30
Intelligence20
Reasoning40
Math30
Knowledge40
General130
All shared boards290
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
Coding benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
LMArena WebDev1390Not measuredOnly Claude Opus 4.1 measured
AA Coding IndexNot measured5.8Only Gemma 3 12B measured
LiveCodeBench (Vals AI)66.5%Not measuredOnly Claude Opus 4.1 measured
LiveCodeBench (Artificial Analysis run)Not measured13.7%Only Gemma 3 12B measured
SciCodeNot measured16.4%Only Gemma 3 12B measured
Terminal-Bench Hard (Artificial Analysis run)Not measured0.8%Only Gemma 3 12B measured
Terminal-Bench38.0%Not measuredOnly Claude Opus 4.1 measured
WeirdML45.9%Not measuredOnly Claude Opus 4.1 measured
Cybench42.0%Not measuredOnly Claude Opus 4.1 measured
LMArena Text: coding14791281Claude Opus 4.1
LMArena Text: software and IT14561313Claude Opus 4.1
LMArena WebDev: HTML1399Not measuredOnly Claude Opus 4.1 measured
SciCode4.6%0.0%Claude Opus 4.1
Neither model has a result on the other 26 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
AA Intelligence Index22.83.8Claude Opus 4.1
Epoch Capabilities Index144.1123.5Claude Opus 4.1
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Agentic work benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
AA Agentic IndexNot measured0.1Only Gemma 3 12B measured
τ²-Bench TelecomNot measured10.8%Only Gemma 3 12B measured
METR time horizons66.8%Not measuredOnly Claude Opus 4.1 measured
GDPval43.6%Not measuredOnly Claude Opus 4.1 measured
DeepResearch Bench48.3%Not measuredOnly Claude Opus 4.1 measured
Berkeley Function Calling Leaderboard (BFCL)Not measured30.4%Only Gemma 3 12B measured
Neither model has a result on the other 35 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index40
Reasoning benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
GPQA Diamond76.3%Not measuredOnly Claude Opus 4.1 measured
MMMU Pro (Vals AI)77.5%Not measuredOnly Claude Opus 4.1 measured
GPQA Diamond (Artificial Analysis run)Not measured34.9%Only Gemma 3 12B measured
Humanity's Last Exam (Artificial Analysis run)Not measured4.2%Only Gemma 3 12B measured
GPQA Diamond (Epoch AI run)77.3%39.5%Claude Opus 4.1
SimpleBench60.0%Not measuredOnly Claude Opus 4.1 measured
Mystery game puzzles21.0%Not measuredOnly Claude Opus 4.1 measured
EBR-bench7.9%Not measuredOnly Claude Opus 4.1 measured
VPCT35.0%Not measuredOnly Claude Opus 4.1 measured
LMArena Text: hard prompts14421309Claude Opus 4.1
LMArena Text: expert14381248Claude Opus 4.1
LMArena Text: hard prompts in English14511318Claude Opus 4.1
Neither model has a result on the other 10 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
AIME78.2%Not measuredOnly Claude Opus 4.1 measured
MATH 500 (Vals AI)95.4%Not measuredOnly Claude Opus 4.1 measured
MGSM (Vals AI)94.4%Not measuredOnly Claude Opus 4.1 measured
AA Math IndexNot measured18.3Only Gemma 3 12B measured
AIME 2025 (Artificial Analysis run)Not measured18.3%Only Gemma 3 12B measured
OTIS Mock AIME68.9%16.7%Claude Opus 4.1
FrontierMath, tiers 1 to 312.6%Not measuredOnly Claude Opus 4.1 measured
FrontierMath, tier 42.4%Not measuredOnly Claude Opus 4.1 measured
LMArena Text: math14311307Claude Opus 4.1
LMArena Text: mathematical work14341336Claude Opus 4.1
Neither model has a result on the other 3 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
MMLU Pro87.9%Not measuredOnly Claude Opus 4.1 measured
LegalBench (Vals AI)83.5%Not measuredOnly Claude Opus 4.1 measured
TaxEval (Vals AI)73.7%Not measuredOnly Claude Opus 4.1 measured
MortgageTax (Vals AI)61.1%Not measuredOnly Claude Opus 4.1 measured
MedQA (Vals AI)93.6%Not measuredOnly Claude Opus 4.1 measured
MedCode (Vals AI)47.2%Not measuredOnly Claude Opus 4.1 measured
MMLU Pro (Artificial Analysis run)Not measured59.5%Only Gemma 3 12B measured
LMArena Text: science14221366Claude Opus 4.1
LMArena Text: medicine and healthcare14161334Claude Opus 4.1
LMArena Text: legal and government14211381Claude Opus 4.1
LMArena Text: business and finance14061376Claude Opus 4.1
FACTS Benchmark Suite40.4%Not measuredOnly Claude Opus 4.1 measured
Neither model has a result on the other 6 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
Design Arena: websites1176Not measuredOnly Claude Opus 4.1 measured
Design Arena: UI components1162Not measuredOnly Claude Opus 4.1 measured
Design Arena: game dev1171Not measuredOnly Claude Opus 4.1 measured
Design Arena: data viz1166Not measuredOnly Claude Opus 4.1 measured
Design Arena: 3D1152Not measuredOnly Claude Opus 4.1 measured
Design Arena: all code categories1170Not measuredOnly Claude Opus 4.1 measured
Design Arena: SVG1152Not measuredOnly Claude Opus 4.1 measured
Design Arena: ASCII art1167Not measuredOnly Claude Opus 4.1 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index130
General benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
SAGE (Vals AI)31.4%Not measuredOnly Claude Opus 4.1 measured
MedScribe (Vals AI)73.9%Not measuredOnly Claude Opus 4.1 measured
IFBenchNot measured36.7%Only Gemma 3 12B measured
Long context reasoning (AA-LCR)Not measured8.3%Only Gemma 3 12B measured
DTBench80.0%48.8%Claude Opus 4.1
LMCA37.1%4.5%Claude Opus 4.1
Creative writing (Lech Mazur)84.7%Not measuredOnly Claude Opus 4.1 measured
LMArena Text14191334Claude Opus 4.1
LMArena Text: instruction following14351299Claude Opus 4.1
LMArena Text: creative writing14121331Claude Opus 4.1
LMArena Text: English14331349Claude Opus 4.1
LMArena Text: non-English14051318Claude Opus 4.1
LMArena Text: Chinese1427Not measuredOnly Claude Opus 4.1 measured
LMArena Text: German14131370Claude Opus 4.1
LMArena Text: Japanese1377Not measuredOnly Claude Opus 4.1 measured
LMArena Text: Korean1381Not measuredOnly Claude Opus 4.1 measured
LMArena Text: French1433Not measuredOnly Claude Opus 4.1 measured
LMArena Text: Spanish1448Not measuredOnly Claude Opus 4.1 measured
LMArena Text: Russian14221335Claude Opus 4.1
LMArena Text: Polish1413Not measuredOnly Claude Opus 4.1 measured
LMArena Text: multi-turn14441334Claude Opus 4.1
LMArena Text: longer queries14551317Claude Opus 4.1
LMArena Text: writing and language14181307Claude Opus 4.1
LMArena Text: entertainment and media13981297Claude Opus 4.1
Neither model has a result on the other 22 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Opus 4.1 and Gemma 3 12B
BenchmarkClaude Opus 4.1Gemma 3 12BLeader
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

Claude Opus 4.1$0.052Fits in one request
Gemma 3 12B$0.0002Fits in one request

Gemma 3 12B costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.1$0.975Fits in one request
Gemma 3 12B$0.0042Fits in one request

Gemma 3 12B costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.1$3.75Exceeds the context window
Gemma 3 12B$0.017Exceeds the context window

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 Claude Opus 4.1 and Gemma 3 12B
SpecificationAnthropic Claude Opus 4.1Google Gemma 3 12B
MakerAnthropicGoogle
WeightsNo public weights listedOpen weights
ReleasedAugust 5, 2025March 13, 2025
Context window200K131K
Input $/Mtok$15.00$0.075
Output $/Mtok$75.00$0.1625
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it10
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Opus 4.1 better than Gemma 3 12B for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Claude Opus 4.1 for a larger context window (200K against 131K tokens).

Which is cheaper, Claude Opus 4.1 or Gemma 3 12B?

Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens; Gemma 3 12B costs $0.075 and $0.1625. Cost per solved task is known for neither of them.

Which has the bigger context window, Claude Opus 4.1 or Gemma 3 12B?

Claude Opus 4.1, with 200K tokens against 131K.

How many benchmarks is the Claude Opus 4.1 vs Gemma 3 12B comparison based on?

29 benchmarks have a result for both models as of October 22, 2026. Claude Opus 4.1's coding index rests on 1 independent benchmark and Gemma 3 12B's on 0. Where only one model has a result, the page says so instead of naming a winner.

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