Neptune

Metadata store for logging, comparing, and monitoring machine learning experiments.

License: proprietary
Open source: No

Editorial review

Neptune has not yet been editorially reviewed. User reviews and published field data below are unaffected — we say so rather than implying an editorial verdict.

Facts & attributes

Every value carries its evidence state. “—” means unknown — never a silent default (P-02).

Identity · Taxonomy

Tags(open-source;cloud-native): experiment tracking, MLOps, foundation models, discontinuedVerification pending

Platform · Deployment

Delivery model(SaaS;self-hosted;desktop;mobile;embedded;managed-cloud;appliance): SaaSVerification pending

Pricing · Licensing

License model(proprietary;open-source;source-available;dual-license): proprietaryVerification pending

Features · Product · Fit

Core capabilities(authoring;automation;analytics): Experiment tracking, Run metadata exploration, Dashboards and charts, ReportsVerification pending

Audience · Use · Case

Best for(Neutral editorial summary): No longer available: shut down March 5, 2026 after acquisition by OpenAI; existing data had to be exported before shutdownVerification pending
Primary use cases(build;monitor;automate): Experiment tracking for teams that train foundation modelsVerification pending
Skill level(beginner;intermediate;advanced;specialist): advancedVerification pending

Lifecycle · Versioning

Current version(1.12.3): 3.20251215Verified
Maintenance status(active;maintenance;deprecated;EOL;archived): EOLVerification pending

Vendor · Maintainer

Vendor type(commercial;foundation;community;government;consortium;individual): commercialVerification pending

User reviews

Review policy

No published reviews yet.