LG opens free API access to K-EXAONE 2.5 model

LG AI Research Institute has made the API of its K-EXAONE 2.5 model free for everyone. Developers, companies, and research groups can now use it at no cost for building services and running research.

The model is LG's own technology testbed, trained further on the version released in August, with a focus on agent skills that let it handle complex tasks on its own.

In tests like AutomationBench, SWE-Bench Pro, BrowseComp, and Claw-Eval, K-EXAONE 2.5 performs on par with top open-source models such as DeepSeek-V4.1-Flash and GLM-5.3, putting its agent skills in the first tier.