EXAONE 4.5 33B vs GPT OSS 120B High
Both models are evenly matched across the benchmarks.
LG AI Research · OpenAI · Updated for 2026
Which is better?
EXAONE 4.5 33B outperforms in 2 benchmarks (AIME 2025, MMLU-Pro), while GPT OSS 120B High is better at 2 benchmarks (GPQA, LiveCodeBench v6). Both models are evenly matched across the benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose EXAONE 4.5 33B
- you want the most recent training data — it shipped Apr 2026
Choose GPT OSS 120B High
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
EXAONE 4.5 33B outperforms in 2 benchmarks (AIME 2025, MMLU-Pro), while GPT OSS 120B High is better at 2 benchmarks (GPQA, LiveCodeBench v6).
Both models are evenly matched across the benchmarks.
Arena Performance
Playground indexes and blind preference scores
Model Size
Parameter count comparison
GPT OSS 120B High has 83.8B more parameters than EXAONE 4.5 33B, making it 253.9% larger.
Context Window
Maximum input and output token capacity
Only GPT OSS 120B High specifies input context (131,072 tokens). Only GPT OSS 120B High specifies output context (131,072 tokens).
Input Capabilities
Supported data types and modalities
EXAONE 4.5 33B supports multimodal inputs, whereas GPT OSS 120B High does not.
EXAONE 4.5 33B can handle both text and other forms of data like images, making it suitable for multimodal applications.
EXAONE 4.5 33B
GPT OSS 120B High
License
Usage and distribution terms
EXAONE 4.5 33B is licensed under a proprietary license, while GPT OSS 120B High uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
EXAONE 4.5 33B was released on 2026-04-09, while GPT OSS 120B High was released on 2025-08-05.
EXAONE 4.5 33B is 8 months newer than GPT OSS 120B High.
Apr 9, 2026
4 months ago
8mo newerAug 5, 2025
1.1 years ago
Knowledge Cutoff
When training data ends
EXAONE 4.5 33B has a documented knowledge cutoff of 2024-12-01, while GPT OSS 120B High's cutoff date is not specified.
We can confirm EXAONE 4.5 33B's training data extends to 2024-12-01, but cannot make a direct comparison without GPT OSS 120B High's cutoff date.
Dec 2024
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Outputs Comparison
Judge for yourself.
Run your own prompts against EXAONE 4.5 33B and GPT OSS 120B High side-by-side, then vote on the output you prefer.
FAQ
Common questions about EXAONE 4.5 33B vs GPT OSS 120B High.