Non-EU vendorAIHeadquarters: US

Weights & Biases: sovereignty score and 8 European alternatives

Weights & Biases provides tools for tracking machine-learning experiments, managing a model registry, evaluating models and tracing applications built on large language models. Teams use it as a hosted service, on multi-tenant or dedicated infrastructure. The company was founded in 2017 and is headquartered in San Francisco. CoreWeave, a cloud company with its address in Livingston, New Jersey, acquired Weights & Biases in May 2025, and the platform now operates as part of CoreWeave Forge.

Weights & Biases is a US company, and its parent CoreWeave is also US-based, so US legal process can reach data held by either. The company says its platform is in alignment with GDPR requirements for processing personal information, and it lists ISO/IEC 27001, 27017 and 27018, SOC 2, HIPAA and NIST 800-53 alignment. Its homepage and about page do not state the regions where customer data is hosted, or whether a data processing agreement or EU-only hosting is available. Before sending regulated data, a European organisation should check the dedicated hosting option and the contract terms.

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Sovereignty score

17 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-210
Headquartered in the US: CLOUD Act and FISA 702
Data residency SOV-30
No hosting in Europe (US)
Cryptographic key sovereignty SOV-320
Key management with a non-European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-615
Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 11, 2026

Headquarters	US (US)Verified by hand
EU adequacy decision	Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty model	Vendor-hosted (non-EU)Verified by hand
Data hosting	USVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	AI
Type	Product
Website	wandb.ai ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Weights & Biases

The European alternatives to Weights & Biases come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

56 European AI vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Weights & Biases

Weights & Biases is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.

Weights & Biases hosts data outside the EU (US). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

Weights & Biases is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Weights & Biases together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Weights & Biases?

It depends on your use case. Strong EU alternatives to Weights & Biases include Aleph Alpha, Almato and Almawave. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Weights & Biases?

Our list of EU alternatives to Weights & Biases is mostly commercial options. Browse the category on the map for open-source choices.

Is Weights & Biases GDPR-compliant and where is the data hosted?

Weights & Biases is headquartered in US and hosts data in US. Its GDPR compliance is limited or unclear. For full EU data residency the EU alternatives on this page usually offer more certainty.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 11, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in AI

AI: Artificial intelligence — large language models, translation, generative AI. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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