transformers/docs/source/en/model_doc/exaone4.md

This model was released on 2025-07-15 and added to Hugging Face Transformers on 2025-07-26.

EXAONE 4

EXAONE 4.0 combines a Non-reasoning mode and a Reasoning mode to merge the usability of EXAONE 3.5 with the advanced reasoning of EXAONE Deep. It introduces agentic tool-use capabilities and expands multilingual support to include Spanish alongside English and Korean. The model series includes a 32B version for high performance and a 1.2B version for on-device use. EXAONE 4.0 outperforms comparable open-weight models, remains competitive with frontier models, and is publicly available for research on Hugging Face.

import torch
from transformers import pipeline

pipeline = pipeline(task="text-generation", model="LGAI-EXAONE/EXAONE-4.0-32B", dtype="auto")
pipeline("Plants generate energy through a process known as  ")

import torch
from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained("LGAI-EXAONE/EXAONE-4.0-32B", dtype="auto")
tokenizer = AutoTokenizer.from_pretrained("LGAI-EXAONE/EXAONE-4.0-32B")

messages = [{"role": "user", "content": "How do plants generate energy?"}]
input_ids = tokenizer.apply_chat_template(messages, tokenize=True, add_generation_prompt=True, return_tensors="pt")

outputs = model.generate(input_ids, max_new_tokens=100, do_sample=True, temperature=0.3,)
print(tokenizer.decode(outputs[0]))

Usage tips

• EXAONE 4.0 models have reasoning capabilities for complex problems. Activate reasoning mode with enable_thinking=True in the tokenizer. This opens a reasoning block starting with <think> tag without closing it. Model generation with reasoning mode is sensitive to sampling parameters. Check the Usage Guideline on the official GitHub page for better quality.
• EXAONE 4.0 models work as agents with tool calling capabilities. Provide tool schemas to the model for effective tool calling.

Exaone4Config

autodoc Exaone4Config

Exaone4Model

autodoc Exaone4Model - forward

Exaone4ForCausalLM

autodoc Exaone4ForCausalLM - forward

Exaone4ForSequenceClassification

autodoc Exaone4ForSequenceClassification - forward

Exaone4ForTokenClassification

autodoc Exaone4ForTokenClassification - forward

Exaone4ForQuestionAnswering

autodoc Exaone4ForQuestionAnswering - forward