neptune.ai
Neptune is a leading experiment tracker designed specifically for AI researchers and ML teams. It enables users to monitor and debug foundation model training at scale, providing a comprehensive solution for logging thousands of metrics across all layers of models. With a focus on reliability and performance, Neptune supports self-hosted deployments and offers a user-friendly interface that enhances collaboration among teams. The platform is trusted by over 60,000 researchers and has been recognized as a top AI startup, making it a strong contender in the MLOps space.
neptune.ai
Neptune is a leading experiment tracker designed specifically for AI researchers and ML teams. It enables users to monitor and debug foundation model training at scale, providing a comprehensive solution for logging thousands of metrics across all layers of models. With a focus on reliability and performance, Neptune supports self-hosted deployments and offers a user-friendly interface that enhances collaboration among teams. The platform is trusted by over 60,000 researchers and has been recognized as a top AI startup, making it a strong contender in the MLOps space.
TL;DR
Product: Experiment-tracking and training-observability platform for foundation models with per-layer metrics
Deployment: Supports self-hosted deployments
Customers: Used by tens of thousands of researchers
Acquisition: Entered definitive agreement to be acquired by OpenAI (announced Dec 3, 2025)
Sunset date: Standalone services to sunset March 5, 2026
Company Overview
Problem Domain
MLOps: experiment tracking and training observability for large-scale/foundation model training
Founded
2017
Industry
Machine learning / MLOps
Funding Track Record
Investor Signal
“Investors include Almaz Capital, b2venture, TDJ Pitango Ventures, Rheingau Founders, and several angel investors”