Model comparison

Gemma 4 26B A4B IT vs GPT-5.2 Pro

GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 43.1 on the Noometry Index. Gemma 4 26B A4B IT costs 477× less per token, which makes it the better buy when GPT-5.2 Pro's lead doesn't matter for your workload.

Last verified October 10, 2026. 1 shared benchmarks.

Gemma 4 26B A4B IT

Google

43.1

Rank #88 Confirmed

GPT-5.2 Pro OpenAI

52.2

Rank #34 Reported

Summary

They share 1 benchmark with published results for both. Gemma 4 26B A4B IT scores higher in 0 categories and GPT-5.2 Pro in 2 categories; 2 gaps are clear of the uncertainty.
The widest gap is in reasoning, where GPT-5.2 Pro leads 51.8 to 21.1.
Gemma 4 26B A4B IT is cheaper at $0.0765 / $0.26 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
GPT-5.2 Pro accepts more context: 400K tokens versus 262K.
Gemma 4 26B A4B IT has downloadable open weights; the other is API-only.

Side by side

Gemma 4 26B A4B IT and GPT-5.2 Pro specifications
	Gemma 4 26B A4B IT	GPT-5.2 Pro
Provider	Google	OpenAI
Noometry Index	43.1	52.2
Released	2026-04-02	2025-12-11
Weights	Open	Proprietary
Context window	262K	400K
Max output	33K	128K
Input $ / M tokens	$0.0765	$21
Output $ / M tokens	$0.26	$168
Results tracked	28	8

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Category by category

Coding Not comparable

Gemma 4 26B A4B IT: 38.8 (#156), GPT-5.2 Pro: —

Coding benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
LMArena WebDev	1359	—
SciCode	40%	—
WeirdML	35.2%	—
LMArena Coding	1446	—
ALE-Bench	927.17	—

Reasoning GPT-5.2 Pro leads

Gemma 4 26B A4B IT: 21.1 (#205), GPT-5.2 Pro: 51.8 (#31)

Reasoning benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
Epoch Capabilities Index	141.85	155.41
ARC-AGI-2	—	54.2%
SimpleBench	—	57.4%
NYT Connections (extended)	—	79.3%
ARC-AGI-1	—	90.5%
CritPt	0%	—
Chess Puzzles	6%	—
LMArena Hard Prompts	1438	—
DTBench	74.9%	—
LMCA	29.7%	—

Math GPT-5.2 Pro leads

Gemma 4 26B A4B IT: 45.7 (#61), GPT-5.2 Pro: 64.8 (#23)

Math benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
FrontierMath (Tiers 1-3)	—	74%
FrontierMath Tier 4	—	46%
OTIS Mock AIME 2024-2025	82.2%	—
LMArena Math	1469	—
FrontierMath Tier 4 (v1)	—	31.3%

Knowledge Not comparable

Gemma 4 26B A4B IT: 45.6 (#79), GPT-5.2 Pro: —

Knowledge benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
GPQA Diamond	73.2%	—
Vectara Hallucination Rate	5.2%	—
LMArena Expert	1447	—

Multimodal Not comparable

Gemma 4 26B A4B IT: 39.9 (#43), GPT-5.2 Pro: —

Multimodal benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
LMArena Vision	1260	—

Multilingual Not comparable

Gemma 4 26B A4B IT: 53.3 (#68), GPT-5.2 Pro: —

Multilingual benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
LMArena Non-English	1422	—
LMArena Chinese	1495	—
LMArena French	1459	—
LMArena Russian	1434	—
LMArena Spanish	1415	—

Instruction Following Not comparable

Gemma 4 26B A4B IT: 75.0 (#78), GPT-5.2 Pro: —

Instruction Following benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
LMArena Instruction Following	1420	—

Long Context Not comparable

Gemma 4 26B A4B IT: 43.6 (#87), GPT-5.2 Pro: —

Long Context benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
LMArena Longer Query	1427	—

Writing & Preference Not comparable

Gemma 4 26B A4B IT: 58.8 (#110), GPT-5.2 Pro: —

Writing & Preference benchmarks
Benchmark	Gemma 4 26B A4B IT	GPT-5.2 Pro
LMArena Text	1434	—
LMArena Creative Writing	1401	—
EQ-Bench Creative Writing	1305	—
LMArena Multi-Turn	1442	—

Frequently asked questions

Is Gemma 4 26B A4B IT better than GPT-5.2 Pro?

Which is cheaper, Gemma 4 26B A4B IT or GPT-5.2 Pro?

Gemma 4 26B A4B IT is cheaper. It lists at $0.0765 per million input tokens and $0.26 per million output tokens; GPT-5.2 Pro lists at $21 and $168.

Which has the bigger context window?

GPT-5.2 Pro does, with 400K tokens against 262K.

How many benchmarks do Gemma 4 26B A4B IT and GPT-5.2 Pro share?

1 benchmark has published results for both models. Gemma 4 26B A4B IT has 28 scored results on Noometry and GPT-5.2 Pro has 8.