OpenAI has finalized an agreement to acquire Neptune, a startup known for its tools that monitor and debug AI model training processes. OpenAI has utilized Neptune's tools for over a year to conduct experiments and compare model versions. The acquisition will facilitate closer collaboration, with Neptune planning to gradually reduce its external services. Financial details of the deal remain undisclosed. OpenAI Chief Scientist Jakub Pachocki highlighted that Neptune's system enhances the analysis of complex training workflows, and OpenAI intends to integrate these tools into its training stack to improve understanding of model learning processes.