Does Anthropic Claude API train on your data?
Anthropic Claude API by AnthropicModel APIs and platformsVendor's pages read on
Not by default, according to the vendor's published terms.
The vendor states that inputs are not used for training unless the customer opts in on Claude API. Read on 12 Nov 2026. The plan your company actually holds, and any negotiated terms, decide what applies to you.
A summary of what the vendor publishes, not legal advice, not an assessment of the vendor and not an endorsement. How this page was made.
What the vendor states, plan by plan
| Plan | Trains on your data | Default retention | Human review of inputs | Single sign-on |
|---|---|---|---|---|
| Claude APIAPI | Only if the customer opts in | 30 days | Unknown | Unknown |
“Unknown” means the vendor's page that would answer this was not read, or could not be opened. It does not mean “no”.
Claude API
On Claude API, the vendor states that inputs are not used for training unless the customer opts in. Retention: 30 days. A zero-retention option is stated. Not verified: human review of inputs.
- Trains on customer data
- Only if the customer opts in
Feedback you submit, or data you otherwise choose to share, may be used for training.
“By default, we will not use your inputs or outputs from our commercial products”
The vendor states this on privacy.claude.com, read on 12 Nov 2026
- Default retention
- 30 days
Listed exceptions include services with longer retention under the customer's control and Usage Policy enforcement.
“we automatically delete inputs and outputs on our backend within 30 days of receipt or generation”
The vendor states this on privacy.claude.com, read on 12 Nov 2026
- Zero-retention option
- Yes
By agreement with Anthropic; the source lists the products covered.
“the only products to which zero data retention applies are eligible Anthropic APIs”
The vendor states this on privacy.claude.com, read on 12 Nov 2026
Unknown for this plan: Deletion on request; Human review of inputs; Single sign-on (SSO); SCIM provisioning; Audit logs; Admin console; Data residency options; Customer-managed keys.
Attestations and company facts the vendor states
- SOC 2 Type II
- Yes
Listed as a document in the vendor's trust centre.
“[Anthropic] 2025 Type 2 SOC 2 and CSA STAR L2 Report.pdf”
The vendor states this on trust.anthropic.com, read on 12 Nov 2026
- ISO/IEC 27001
- Yes
Listed as a document in the vendor's trust centre.
“[Anthropic] ISO 27001 Certificate (2025).pdf”
The vendor states this on trust.anthropic.com, read on 12 Nov 2026
- ISO/IEC 42001
- Yes
Listed as a document in the vendor's trust centre.
“[Anthropic] ISO 42001 Certificate (2025).pdf”
The vendor states this on trust.anthropic.com, read on 12 Nov 2026
- HIPAA BAA available
- Yes
Examples given: the Claude API with HIPAA configuration enabled and HIPAA-ready Enterprise plans.
“Anthropic's Business Associate Agreement (BAA) is available for Anthropic's HIPAA-ready services”
The vendor states this on privacy.claude.com, read on 12 Nov 2026
- GDPR DPA available
- Yes
The vendor publishes its Data Processing Addendum at this address.
“"Subprocessor" means an entity engaged by Anthropic to process Customer Personal Data.”
The vendor states this on anthropic.com, read on 12 Nov 2026
- Data processing location
- United States, and other countries outside the EEA and UK
“your personal data is transferred to our servers in the US, or to other countries outside the European Economic Area”
The vendor states this on anthropic.com, read on 12 Nov 2026
“Yes” means the vendor's page says so, with the page linked. GhostAudit has not audited the vendor. Scope by product is on the vendor's page.
What remains unknown
- Deletion on request
- Human review of inputs
- Single sign-on (SSO)
- SCIM provisioning
- Audit logs
- Admin console
- Data residency options
- Customer-managed keys
- FedRAMP
- Company headquarters
- Model providers used
None of these was guessed, inferred from another vendor or filled from memory. Ask the vendor, using the list below.
- Enterprise controls not verified. SSO, SCIM and audit logs have not been checked for this tool yet.
How to check Anthropic Claude API in your own company
- 01Find out which plan each account is on. People who signed up with a personal address are on the personal terms, whatever the company bought.
- 02Open the account or administrator settings and look for the data-controls or model-training setting the vendor's page describes. Note what it is set to today and who is able to change it.
- 03Read the vendor's own page, linked under each fact below, and check that the sentence quoted here is still there. Pages change; the date shows when this one was read.
- 04Compare with your contract or order form. Where a data processing agreement or negotiated terms exist, they take precedence over the public pages.
- 05Record the plan, the setting and the date in your AI inventory, so that the answer exists the next time a customer or auditor asks.
What to ask the vendor
Neutral questions for the points the vendor's public pages left open. Ask for the answer in writing.
- 01How do we request deletion of our data, and within how many days is it completed, including backups?
- 02Can your staff or contractors read our inputs? In which cases, and is that access logged?
- 03Is single sign-on available on our plan, and can sign-in with personal accounts be blocked for our domain?
- 04Is SCIM provisioning available, so that leavers lose access automatically?
- 05Are audit logs available to administrators, and can they be exported to our security tooling?
- 06Is there an administrator console where data controls can be set for every account in our organisation?
- 07Where is our data processed and stored, and can a region be chosen?
- 08Can we hold the encryption keys for our data?
- 09Which third-party model providers process our inputs, and under what retention and training terms?
- 10Do the statements on your public pages apply to our contract as written, or do negotiated terms override them?
Questions about Anthropic Claude API
- Does Anthropic Claude API train on your data?
- Not by default, according to the vendor's published terms. The vendor states that inputs are not used for training unless the customer opts in on Claude API. Read on 12 Nov 2026. The plan your company actually holds, and any negotiated terms, decide what applies to you.
- Is Anthropic Claude API safe to use at work?
- GhostAudit does not rate tools. Whether Anthropic Claude API is acceptable for your company depends on the plan you hold, the data people put into it and your own policy. This page records what the vendor states, with the wording and the source, so that decision can be made on facts: Claude API: only if the customer opts in (training on customer data).
- How long does Anthropic Claude API keep data?
- The vendor states: 30 days. This is the default the vendor's page describes for one plan; other plans may differ, and the table on this page shows each.
- Which attestations does the vendor of Anthropic Claude API state?
- The vendor's pages state: SOC 2 Type II, ISO/IEC 27001, ISO/IEC 42001, HIPAA BAA available and GDPR DPA available. This is the vendor's statement, with the page linked; GhostAudit has not audited the vendor, and the scope by product is on the vendor's page.
- When were these facts checked, and how do I report an error?
- The vendor's pages were read on 12 Nov 2026. Every quotation was checked against the stored text of its source page on that date. To report an inaccuracy, email [email protected] with the page that shows the current wording.
How this page was made, and how to correct it
Every fact above is a statement found on a page Anthropic itself publishes. The page was fetched and reduced to text, the statement was recorded with its exact wording, and the quotation was checked against the stored text of the page. Quotations are at most 25 words. Search results, blogs and third-party summaries were not used.
These are summaries of statements the vendor publishes, as read on the date shown. They are not legal advice, not an assessment of the vendor and not an endorsement. Vendors change their terms: open the linked source and check your own contract before you rely on a statement.
Found an error, or are you the vendor? Report an inaccuracy with the page that shows the current wording. The page is re-read; the fact, its quotation and its date are corrected, or the fact is set to unknown if the page cannot be opened. The full method.
The vendor's official pages
- Privacy policyanthropic.com
- Termsanthropic.com
- Data processing agreementanthropic.com
- Subprocessorstrust.anthropic.com
- Trust centretrust.anthropic.com
Anthropic Claude API is a product of Anthropic. GhostAudit is not affiliated with, endorsed by or sponsored by Anthropic.
Is Anthropic Claude API in use at your company, and on which plan?
GhostAudit shows which AI tools your people use, from Google Workspace or Microsoft 365 and from the browser, and sets each one beside the terms on this page. It records tool names and time, never prompts.