Not legal advice · Summaries of vendors' public pages, which change often. Verify with the vendor and your contract before relying on anything here.
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Does Claude API train on your data?

Anthropic · Model API · Last verified

Doesn't train by default

Doesn't train on business data by default.

Short answer: No

Anthropic does not train on inputs/outputs from commercial products, including the Anthropic API, unless you opt in or submit feedback.

Source: privacy.anthropic.com/en/articles/7996868-is-my-data-used-for-model-training

Why this matters: A "no" keeps your prompts and files out of Anthropic's models, where they couldn't be removed later. Confirm it covers the plan you use. Why training matters →

3/7 assurances found·5 of 9 fields confirmed from vendor pages

Below: retention, SOC 2, ISO 27001/42001, DPA, BAA, data residency and zero-retention for Claude API, each linked to Anthropic's own page.

Summary of Anthropic's public pages as of Oct 17, 2026. Not legal advice: terms vary by plan and contract and can change. Confirm with Anthropic before relying on it.

Trains on your data by default

No

Anthropic does not train on inputs/outputs from commercial products, including the Anthropic API, unless you opt in or submit feedback.

Source:

Data retention

30 days

Inputs and outputs automatically deleted within 30 days, with exceptions (Files API, ZDR, usage policy, law).

Source:

SOC 2 Type II

Unknown

Not stated on the Anthropic pages we checked.

Pages checked:

ISO/IEC 27001

Unknown

Not stated on the Anthropic pages we checked.

Pages checked:

ISO/IEC 42001

Unknown

Not stated on the Anthropic pages we checked.

Pages checked:

DPA available

Yes

References the Anthropic Data Processing Addendum.

Source:

BAA / HIPAA

Yes

BAA available for HIPAA-ready services such as the Claude API with HIPAA configuration.

Source:

Data residency options

Unknown

Not stated on the Anthropic pages we checked.

Pages checked:

Zero-retention option

Yes

Zero data retention agreements available; article lists which products they apply to.

Source:

Vendor pages we monitor for this tool

We save a fingerprint (SHA-256 of the page's visible text) on every check so we can spot when a vendor edits its terms.

PageCheckedFingerprint
https://privacy.anthropic.com/en/articles/7996866-how-long-do-you-store-my-organization-s-dataOct 17, 20265fdc322f9033…
https://privacy.anthropic.com/en/articles/8956058-i-have-a-zero-data-retention-agreement-with-anthropic-what-products-does-it-apply-toOct 17, 202612d6959b8c3e…
https://privacy.anthropic.com/en/articles/8114513-business-associate-agreements-baa-for-commercial-customersOct 17, 2026e000d3499687…

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