Model comparison

Llama 3.2 90B vs o3-mini

o3-mini is the stronger model overall, scoring 36.7 to 27.5 on the Noometry Index.

Last verified October 10, 2026. 4 shared benchmarks.

Summary

They share 4 benchmarks with published results for both. Llama 3.2 90B scores higher in 2 categories and o3-mini in 2 categories; 3 gaps are clear of the uncertainty.
The widest gap is in math, where o3-mini leads 28.1 to 11.1.
The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.6% for Llama 3.2 90B and 76.9% for o3-mini.
Llama 3.2 90B has downloadable open weights; the other is API-only.

Side by side

Llama 3.2 90B and o3-mini specifications
	Llama 3.2 90B	o3-mini
Provider	Meta	OpenAI
Noometry Index	27.5	36.7
Released	2024-09-24	2024-12-20
Weights	Open	Proprietary
Context window	—	200K
Max output	—	100K
Input $ / M tokens	—	$1.10
Output $ / M tokens	—	$4.40
Results tracked	9	51

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Category by category

Coding Not comparable

Llama 3.2 90B: —, o3-mini: 40.8 (#132)

Coding benchmarks
Benchmark	Llama 3.2 90B	o3-mini
Aider Polyglot	—	60.4%
SciCode	—	39.8%
GSO	—	1.3%
WeirdML	—	43.7%
LiveBench Coding	—	82.7%
LMArena Coding	—	1378
CadEval	—	54%

Agentic & Tool Use Too close to call

Llama 3.2 90B: 30.0 (#80), o3-mini: 29.6 (#84)

Agentic & Tool Use benchmarks
Benchmark	Llama 3.2 90B	o3-mini
Cybench	—	22.5%
BALROG	27.3%	—

Reasoning Llama 3.2 90B leads

Llama 3.2 90B: 21.7 (#217), o3-mini: 16.3 (#305)

Reasoning benchmarks
Benchmark	Llama 3.2 90B	o3-mini
Epoch Capabilities Index	125.5	140.34
ARC-AGI-2	—	3%
SimpleBench	—	22.8%
ARC-AGI-1	—	34.5%
CritPt	—	0.3%
Chess Puzzles	—	17%
EnigmaEval	0.4%	—
LiveBench Reasoning	—	89.6%
LMArena Hard Prompts	—	1366
Mystery Game Puzzles	—	7%
DTBench	—	68.8%
LiveBench Data Analysis	—	70.6%
LMCA	—	19%
ForecastBench	—	59.6
LiveBench	—	75.9%

Math o3-mini leads

Llama 3.2 90B: 11.1 (#308), o3-mini: 28.1 (#244)

Math benchmarks
Benchmark	Llama 3.2 90B	o3-mini
OTIS Mock AIME 2024-2025	2.6%	76.9%
MATH Level 5	39.4%	96.5%
FrontierMath (Tiers 1-3)	—	18.6%
FrontierMath Tier 4	—	0%
LiveBench Math	—	77.3%
LMArena Math	—	1396
FrontierMath (Feb 2025 set)	—	12.4%
FrontierMath Tier 4 (v1)	—	4.2%

Knowledge o3-mini leads

Llama 3.2 90B: 21.7 (#274), o3-mini: 38.3 (#146)

Knowledge benchmarks
Benchmark	Llama 3.2 90B	o3-mini
GPQA Diamond	41%	77%
SimpleQA Verified	—	15.3%
Confabulations	—	17.9%
LMArena Expert	—	1364
MMLU	80.3%	—

Multimodal Not comparable

Llama 3.2 90B: 25.4 (#124), o3-mini: —

Multimodal benchmarks
Benchmark	Llama 3.2 90B	o3-mini
LMArena Vision	1000	—
GeoBench	52%	—

Multilingual Not comparable

Llama 3.2 90B: —, o3-mini: 45.7 (#164)

Multilingual benchmarks
Benchmark	Llama 3.2 90B	o3-mini
LMArena Non-English	—	1319
LMArena Chinese	—	1379
LMArena French	—	1334
LMArena German	—	1303
LMArena Japanese	—	1286
LMArena Korean	—	1314
LMArena Russian	—	1304
LMArena Spanish	—	1321

Instruction Following Not comparable

Llama 3.2 90B: —, o3-mini: 75.1 (#72)

Instruction Following benchmarks
Benchmark	Llama 3.2 90B	o3-mini
LiveBench Instruction Following	—	84.4%
LMArena Instruction Following	—	1337

Long Context Not comparable

Llama 3.2 90B: —, o3-mini: 33.8 (#256)

Long Context benchmarks
Benchmark	Llama 3.2 90B	o3-mini
Fiction.LiveBench	—	50%
LMArena Longer Query	—	1343

Writing & Preference Not comparable

Llama 3.2 90B: —, o3-mini: 50.3 (#182)

Writing & Preference benchmarks
Benchmark	Llama 3.2 90B	o3-mini
LMArena Text	—	1337
LMArena Creative Writing	—	1286
Short-Story Creative Writing	—	61.7%
LMArena Multi-Turn	—	1320
LiveBench Language	—	50.7%

Frequently asked questions

Is Llama 3.2 90B better than o3-mini?