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App version: 3.20251124

Neptune Acquisition & Shutdown – Transition Hub

Neptune has entered into a definitive agreement to be acquired by OpenAI, subject to closing conditions. You can read more about it here.

We will wind down the hosted (SaaS) service after a 3‑month transition period ending on March 4, 2026. Self-hosted customers have been contacted by their account manager to work on a smooth transition path.

This page is your single source of truth for key dates, data export, migration, and any other information regarding the transition.

Changelog​

  • December 3, 2025: Initial announcement and FAQ published.

FAQ​

Will this interrupt my service right away?

No, not immediately. If you're on the hosted (SaaS) plan, you have full access until March 4, 2026. If you are a self-hosted customer, your account manager has already reached out (or will reach out) to coordinate the best path forward.

I am a SaaS customer. What happens to me?

Nothing changes immediately. If you're on the hosted (SaaS) plan, you have until March 4, 2026 to keep using Neptune, export your data, and migrate.

  • Until March 4, 2026: Service remains available; we'll provide guidance and resources.

  • On March 4, 2026, at 10 am PST: The hosted app and API will be turned off. Any remaining hosted data will be securely and irreversibly deleted as part of the shutdown.

  • Action: Please complete your export and migration before March 4, 2026. If you need help, email support@neptune.ai.

I am a self-hosted customer. What happens to me?

We're working with each self-hosted customer to ensure a smooth transition and an appropriate runway. Your account manager will reach out to discuss timelines, licensing, and support options. If you haven't heard from us, email support@neptune.ai with your company name and deployment details.

Do I need to move to a different vendor?

Yes, eventually.

  • Hosted (SaaS) users must export data and migrate to an alternative tool before March 4, 2026.
  • Our team will provide resources and guidance during this transition period. Contact support@neptune.ai.
What are the key dates I should remember?
  • Transition period: December 3, 2025 → March 4, 2026
  • Service shutdown (sunset): March 4, 2026, at 10 am PST
  • Hosted data deletion: March 4, 2026 (deletion begins at shutdown)
How do I export my data?

Use the Neptune Exporter tool. The API is available until March 4, 2026.

For assistance, email support@neptune.ai.

(info) How to tell which Neptune version you're using

Check your version through the app, or use the following methods:

  • Docs URL:

  • Python packages/imports:

    • If you use neptune-scale and/or neptune-query (from neptune_scale import ...), you're on 3.x.
    • If you use the neptune package (import neptune), you're likely on 2.x.

Not sure? Email us a snippet of your requirements.txt/pyproject.toml (or pip show) at support@neptune.ai and we'll confirm.

Where can I find export instructions for versions 3.x and 2.x?

First, confirm your version through the app or the info note above. Then follow the appropriate guide:

Can I keep using Neptune after the sunset date?

If you are a self-hosted customer, your account manager will be reaching out to you to discuss a transition timeline. If you are a SaaS customer or user, the service will be discontinued on March 4, 2026.

Which tools can I migrate to?

We'll list a small set of well-supported alternatives and provide mapping notes (features, metadata, artifacts). For now, see the migration overview and contact support@neptune.ai for guidance.

Will you offer migration guides or scripts to other tools?

Yes. We'll publish how-to guides and scripts for common destinations (Weights & Biases and MLflow), as well as downloading your Neptune data to Parquet:

(We'll keep this page updated as new resources are published.)

Can I start a new trial or sign up today?

No. New sign-ups and trials are closed. Existing SaaS customers retain access during the next 3 months ending on March 4, 2026. We are discussing a transition period on a case-by-case basis with each self-hosted customer.

Will customer support be available during the transition?

Yes. Our team is available Mon–Fri, 9–17 CET (GMT+2).

How do I contact you?

Email support@neptune.ai. Please include your org name, plan (SaaS/self-hosted), and topic (export, migration, billing, etc.) for fastest routing.

What happens to my data if I do nothing?

Hosted customer data that remains in our systems at 10 am PST on March 4, 2026 will be securely and irreversibly deleted as part of the shutdown.

Can I request early deletion?

Yes. Email support@neptune.ai with subject "Early Deletion Request". We can process early deletion until March 4, 2026.

Will any of my data be transferred to OpenAI?

No. We will not transfer customer content or PII to the acquirer.

What happens to the docs, SDKs, and GitHub repos?
  • Docs: Our documentation will be available at docs.neptune.ai and docs-legacy.neptune.ai until March 4, 2026. After that, we'll keep the docs archive live on the GitHub pages (links will be provided closer to the March 4, 2026).
  • GitHub repos: Switched to archived (read-only) and README updated to point here.
How will billing and renewals work during the transition period?
  • Auto-renewals stop immediately as of December 3, 2025.
  • Transition period billing for hosted (SaaS): we'll refund you for any paid but unused service time, whether it falls after March 4, 2026 or results from an early migration.
  • Self-hosted annual customers: your account managers have already or will be reaching out to you to discuss a smooth transition. You can also contact us at support@neptune.ai.
Where can I download past invoices and receipts?
  • Neptune 2.x: In the workspace settings, go to Billing & Payments → Invoices. Invoices are available only through March 4, 2026.
  • Neptune 3.x: Contact support@neptune.ai.
How will I be notified about updates or changes?

We'll add dated notes to the Changelog at the top of this page and, if applicable, send reminder emails during the transition period.