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Gemma 4 26B A4B vs Solar Pro 4

Solar Pro 4 leads Gemma 4 26B A4B on the Artificial Analysis Intelligence Index, 28.2 to 16.7, at about the same output price ($0.60 vs $0.60 per million). Updated October 22, 2026; 34 benchmarks have a result for both.

Replace Gemma 4 26B A4B Replace Solar Pro 4
Gemma 4 26B A4BGoogle
Coding
No data
Overall
54.7
Output $/M
$0.60
25
Solar Pro 4Upstage
Coding
No data
Overall
No data
Output $/M
$0.60
9
vs boards won of 34 shared

Gemma 4 26B A4B or Solar Pro 4: which to pick

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

Pick Gemma 4 26B A4B for work measured by LMArena WebDev or AA Coding Index, where it leads.

Model AGemma 4 26B A4BGoogleNot benchmarked1 independent benchmarkNo cost per solved taskModel BSolar Pro 4UpstageNot benchmarked1 independent benchmarkNo cost per solved task
Shared results
34
Gemma 4 26B A4B only
21
Solar Pro 4 only
11
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
Gemma 4 26B A4B not benchmarked, Solar Pro 4 not benchmarked.
Widest category
Intelligence, 11.5 points apart on average over 1 shared benchmark.
Widest single gap
ALE-Bench: Gemma 4 26B A4B 927.2 against Solar Pro 4 179.3, 24.9 points apart on a 0 to 100 scale.
Output price
Both cost $0.60 per million output tokens.
Context window
Gemma 4 26B A4B takes 262K tokens, Solar Pro 4 524K.

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 A4BBarsSolar Pro 4Ties
Coding35
Intelligence01
Reasoning32
Math20
Knowledge40
General131
All shared boards259
CodingLike-for-likeSix of these boards feed the Vibe Coding Index35
Coding benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
LMArena WebDev13601371Solar Pro 4
AA Coding Index39.352.7Solar Pro 4
SciCode40.0%48.0%Solar Pro 4
Terminal-Bench Hard (Artificial Analysis run)25.0%Not measuredOnly Gemma 4 26B A4B measured
WeirdML35.2%Not measuredOnly Gemma 4 26B A4B measured
ALE-Bench927.2179.3Gemma 4 26B A4B
LMArena Text: coding14461438Gemma 4 26B A4B
LMArena Text: software and IT14541431Gemma 4 26B A4B
LMArena WebDev: React13511363Solar Pro 4
LMArena WebDev: HTML13621371Solar Pro 4
Neither model has a result on the other 29 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
AA Intelligence Index16.728.2Solar Pro 4
Epoch Capabilities Index141.9Not measuredOnly Gemma 4 26B A4B measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
Agentic work benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
AA Agentic Index2.9Not measuredOnly Gemma 4 26B A4B measured
Design Arena: agents building web appsNot measured1105Only Solar Pro 4 measured
τ²-Bench Telecom43.6%Not measuredOnly Gemma 4 26B A4B measured
Neither model has a result on the other 38 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index32
Reasoning benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
GPQA Diamond (Artificial Analysis run)79.2%89.1%Solar Pro 4
Humanity's Last Exam (Artificial Analysis run)19.3%29.8%Solar Pro 4
GPQA Diamond (Epoch AI run)73.2%Not measuredOnly Gemma 4 26B A4B measured
LMArena Text: hard prompts14381400Gemma 4 26B A4B
LMArena Text: expert14471428Gemma 4 26B A4B
LMArena Text: hard prompts in English14481427Gemma 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 14 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
OTIS Mock AIME82.2%Not measuredOnly Gemma 4 26B A4B measured
LMArena Text: math14701421Gemma 4 26B A4B
LMArena Text: mathematical work14751427Gemma 4 26B A4B
Neither model has a result on the other 10 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
Knowledge benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
LMArena Text: science14461404Gemma 4 26B A4B
LMArena Text: medicine and healthcare14281374Gemma 4 26B A4B
LMArena Text: legal and government14571383Gemma 4 26B A4B
LMArena Text: business and finance14291381Gemma 4 26B A4B
FACTS Benchmark Suite42.7%Not measuredOnly Gemma 4 26B A4B measured
Neither model has a result on the other 13 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Web design benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
Design Arena: websitesNot measured1176Only Solar Pro 4 measured
Design Arena: UI componentsNot measured1147Only Solar Pro 4 measured
Design Arena: game devNot measured1169Only Solar Pro 4 measured
Design Arena: data vizNot measured1177Only Solar Pro 4 measured
Design Arena: 3DNot measured1178Only Solar Pro 4 measured
Design Arena: all code categoriesNot measured1182Only Solar Pro 4 measured
Neither model has a result on the other 3 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index131
General benchmarks for Gemma 4 26B A4B and Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
IFBench72.4%Not measuredOnly Gemma 4 26B A4B measured
Long context reasoning (AA-LCR)65.7%70.7%Solar Pro 4
DTBench74.9%Not measuredOnly Gemma 4 26B A4B measured
LMCA29.7%Not measuredOnly Gemma 4 26B A4B measured
LMArena Text14341388Gemma 4 26B A4B
LMArena Text: instruction following14201375Gemma 4 26B A4B
LMArena Text: creative writing14001317Gemma 4 26B A4B
LMArena Vision1260Not measuredOnly Gemma 4 26B A4B measured
LMArena Text: English14441414Gemma 4 26B A4B
LMArena Text: non-English14211363Gemma 4 26B A4B
LMArena Text: Chinese14951422Gemma 4 26B A4B
LMArena Text: GermanNot measured1358Only Solar Pro 4 measured
LMArena Text: JapaneseNot measured1320Only Solar Pro 4 measured
LMArena Text: KoreanNot measured1383Only Solar Pro 4 measured
LMArena Text: French14601400Gemma 4 26B A4B
LMArena Text: Spanish14151409Gemma 4 26B A4B
LMArena Text: Russian14341357Gemma 4 26B A4B
LMArena Text: PolishNot measured1304Only Solar Pro 4 measured
LMArena Text: multi-turn14411385Gemma 4 26B A4B
LMArena Text: longer queries14271382Gemma 4 26B A4B
LMArena Text: writing and language14051344Gemma 4 26B A4B
LMArena Text: entertainment and media14031332Gemma 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 17 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 Solar Pro 4
BenchmarkGemma 4 26B A4BSolar Pro 4Leader
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$0.0004Fits in one request
Solar Pro 4$0.0004Fits in one request

Same cost

Repository review

50K input + 3K output tokens

Gemma 4 26B A4B$0.0093Fits in one request
Solar Pro 4$0.0093Fits in one request

Same cost

Agent loop

200K input + 10K output tokens

Gemma 4 26B A4B$0.036Fits in one request
Solar Pro 4$0.036Fits in one request

Same cost

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 Solar Pro 4
SpecificationGoogle Gemma 4 26B A4BUpstage Solar Pro 4
MakerGoogleUpstage
WeightsOpen weightsNo public weights listed
ReleasedApril 3, 2026August 10, 2026
Context window262K524K
Input $/Mtok$0.15$0.15
Output $/Mtok$0.60$0.60
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it11
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemma 4 26B A4B better than Solar Pro 4 for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Gemma 4 26B A4B for work measured by LMArena WebDev or AA Coding Index, where it leads.

Which is cheaper, Gemma 4 26B A4B or Solar Pro 4?

Gemma 4 26B A4B costs $0.15 per million input tokens and $0.60 per million output tokens; Solar Pro 4 costs $0.15 and $0.60. Cost per solved task is known for neither of them.

Which has the bigger context window, Gemma 4 26B A4B or Solar Pro 4?

Solar Pro 4, with 524K tokens against 262K.

How many benchmarks is the Gemma 4 26B A4B vs Solar Pro 4 comparison based on?

34 benchmarks have a result for both models as of October 22, 2026. Gemma 4 26B A4B's coding index rests on 1 independent benchmark and Solar Pro 4's on 1. Where only one model has a result, the page says so instead of naming a winner.

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