Noometry

Model comparison

Gemma 4 26B A4B IT vs GPT-5.3 Chat

Gemma 4 26B A4B IT and GPT-5.3 Chat score almost the same on the Noometry Index (43.5 vs 42.8), so choose on price, context window or the category you care about most.

Last verified . 15 shared benchmarks.

Gemma 4 26B A4B IT Google

43.5

Rank #92 Confirmed

GPT-5.3 Chat OpenAI

42.8

Rank #109 Confirmed

Summary

  • They share 15 benchmarks with published results for both. Gemma 4 26B A4B IT scores higher in 5 categories and GPT-5.3 Chat in 3 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Gemma 4 26B A4B IT leads 47.6 to 38.2.
  • Gemma 4 26B A4B IT is cheaper at $0.0675 / $0.23 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Chat.
  • Gemma 4 26B A4B IT accepts more context: 262K tokens versus 128K.
  • Gemma 4 26B A4B IT has downloadable open weights; the other is API-only.

Side by side

Gemma 4 26B A4B ITGPT-5.3 Chat
ProviderGoogleOpenAI
Noometry Index43.542.8
Released2026-04-022026-03-03
WeightsOpenProprietary
Context window262K128K
Max output33K16K
Input $ / M tokens$0.0675$1.75
Output $ / M tokens$0.23$14
Results tracked2818

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Category by category

Coding GPT-5.3 Chat leads

Gemma 4 26B A4B IT: 39.0 (#164), GPT-5.3 Chat: 41.4 (#124)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Coding14471408
LMArena WebDev1359—
SciCode40%—
WeirdML35.2%—
ALE-Bench927.17—

Reasoning GPT-5.3 Chat leads

Gemma 4 26B A4B IT: 21.8 (#213), GPT-5.3 Chat: 28.5 (#102)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Hard Prompts14391399
CritPt0%—
Chess Puzzles6%—
DTBench74.9%—
LMCA29.7%—
Epoch Capabilities Index141.85—

Math Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 47.6 (#67), GPT-5.3 Chat: 38.2 (#142)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Math14701389
OTIS Mock AIME 2024-202582.2%—

Knowledge Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 45.7 (#85), GPT-5.3 Chat: 38.8 (#140)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Expert14471397
GPQA Diamond73.2%—
Vectara Hallucination Rate5.2%—

Multimodal Not comparable

Gemma 4 26B A4B IT: 40.6 (#46), GPT-5.3 Chat: —

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Vision1260—

Multilingual Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 53.1 (#71), GPT-5.3 Chat: 50.3 (#124)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Non-English14211382
LMArena Chinese14951432
LMArena French14601397
LMArena Russian14341400
LMArena Spanish14171371
LMArena German—1384
LMArena Japanese—1352
LMArena Korean—1346

Instruction Following Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 74.8 (#82), GPT-5.3 Chat: 72.8 (#129)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Instruction Following14201378

Long Context Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 43.6 (#91), GPT-5.3 Chat: 42.6 (#120)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Longer Query14281396

Writing & Preference GPT-5.3 Chat leads

Gemma 4 26B A4B IT: 58.6 (#115), GPT-5.3 Chat: 63.1 (#68)

BenchmarkGemma 4 26B A4B ITGPT-5.3 Chat
LMArena Text14341389
LMArena Creative Writing14021355
EQ-Bench Creative Writing13051690
LMArena Multi-Turn14411412

Frequently asked questions

Is Gemma 4 26B A4B IT better than GPT-5.3 Chat?

Gemma 4 26B A4B IT and GPT-5.3 Chat score almost the same on the Noometry Index (43.5 vs 42.8), so choose on price, context window or the category you care about most.

Which is cheaper, Gemma 4 26B A4B IT or GPT-5.3 Chat?

Gemma 4 26B A4B IT is cheaper. It lists at $0.0675 per million input tokens and $0.23 per million output tokens; GPT-5.3 Chat lists at $1.75 and $14.

Is Gemma 4 26B A4B IT or GPT-5.3 Chat better for coding?

GPT-5.3 Chat scores higher on coding benchmarks: 41.4 versus 39.0 in the Noometry coding category.

Which has the bigger context window?

Gemma 4 26B A4B IT does, with 262K tokens against 128K.

How many benchmarks do Gemma 4 26B A4B IT and GPT-5.3 Chat share?

15 benchmarks have published results for both models. Gemma 4 26B A4B IT has 28 scored results on Noometry and GPT-5.3 Chat has 18.

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