EXAONE 4.5

Training compute

3.9×10²⁴ FLOP

Parameters

33.2B

Published

Apr 9, 2026

EXAONE 4.5 is an AI model developed by LG AI Research (South Korea), first published in April 2026. It works in the language and multimodal domain, on tasks such as language modeling/generation and question answering.

Training it took an estimated 3.9×10²⁴ FLOP of compute. The model has 33,200,000,000 parameters.

Access: Open weights (restricted use). Its weights are openly available. Epoch AI rates the confidence of this record as confident.

Full record

Organization: LG AI Research
Country of organization: South Korea
Domain: Language, Multimodal
Task: Language modeling/generation, Question answering
Training compute: 3.9×10²⁴ FLOP
Parameters: 33,200,000,000
Model accessibility: Open weights (restricted use)
Open weights: Yes
Epoch confidence: Confident