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EXAONE 4.0 - LG's large-scale hybrid reasoning model

EXAONE 4.0 is a self-developed hybrid reasoning model launched by LG AI Research in South Korea. The model integrates general natural language processing and advanced reasoning capabilities, and supports Korean, English, and Spanish. The model is available in a 32B professional version and a 1.2B version...

What is EXAONE 4.0?

EXAONE 4.0 is a self-developed hybrid inference model launched by LG AI Research in South Korea. The model integrates general natural language processing and advanced inference capabilities, supporting Korean, English, and Spanish. The model is available in two versions: a 32B professional version based on multiple national certification exams, suitable for highly specialized fields; and a 1.2B edge version, which is smaller, higher-performance, and supports local operation, suitable for scenarios with high privacy and security requirements. EXAONE 4.0 has demonstrated excellent performance in challenging international benchmark tests, such as MMLU-Pro (81.8 points) and AIME 2025 (85.3 points), showcasing its powerful ability to handle complex tasks.

Main features of EXAONE 4.0

  • Advanced reasoning abilityEXAONE 4.0 excels in complex tasks such as science, mathematics, and programming, supporting step-by-step thinking and logical reasoning to solve highly difficult problems.
  • Multilingual supportSupports Korean, English, and Spanish, enhancing its global applicability.
  • Function calls and MCP interfaceIt supports function calls and the MCP (Model Context Protocol) interface, providing underlying support for Agent-type applications and facilitating integration with other systems.
  • Professional Edition and Client-Side Edition:
    • Professional version (32B)Based on six national certification exams in law, accounting, medicine, etc., it is applicable to highly specialized fields.
    • End-side version (1.2B)It is small in size, supports local operation, and is suitable for scenarios with high requirements for privacy and security.
  • Education and Business ApplicationsIt supports free use by educational institutions and provides commercial API services to facilitate rapid integration and application by enterprises.

The technical principles of EXAONE 4.0

  • Hybrid Inference ArchitectureEXAONE 4.0 combines general natural language processing capabilities with advanced reasoning abilities, solving complex problems based on step-by-step thinking and logical reasoning. Its hybrid reasoning architecture enables it to excel in handling highly challenging tasks.
  • Deep learning and neural networksBased on deep learning techniques, especially the Transformer architecture, and trained on large-scale data to optimize model performance, the model can understand and generate natural language, performing exceptionally well in complex tasks.
  • MCP and Function CallsIt supports MCP (Model Context Protocol) and function call functionality, enabling models to interact with other systems and tools and automate more complex tasks.
  • Optimization and CompressionThe edge version uses model compression technology to reduce the size by 50% while maintaining high performance, making it suitable for running on resource-constrained devices.
  • Multilingual trainingTrained on multilingual data, supporting Korean, English, and Spanish, enhancing the model's global applicability.

EXAONE 4.0 project address

  • Project official website: https://www.lgresearch.ai/blog/view?seq=575
  • HuggingFace model library:https://huggingface.co/collections/LGAI-EXAONE/exaone-40-686b2e0069800c835ed48375
  • Technical Papers: https://www.lgresearch.ai/data/cdn/upload/EXAONE_4_0.pdf

Application scenarios of EXAONE 4.0

  • Intelligent Customer ServiceWe respond quickly to customer inquiries, provide multilingual support, accurately answer complex questions, and improve customer satisfaction.
  • Educational SupportThe model can generate practice questions, grade assignments, and provide personalized learning suggestions, thus contributing to the personalized development of education.
  • HealthcareIt assists doctors in making diagnoses, provides access to medical knowledge, helps patients understand medical advice, and improves the efficiency of medical services.
  • Programming aidsThe model can generate code snippets, debug code, and provide programming suggestions, significantly improving development efficiency and helping programmers work efficiently.
  • Corporate OfficeIt can automatically generate reports, organize data, and schedule meetings, improving enterprise office efficiency and optimizing workflows.