Commercial Terms of Service changed Anthropic, May 1, 2026

1. +Added: A.1. Overview. Subject to these Terms, Anthropic gives Customer permission to use the Services, including to power products and services Customer makes available to its own customers and end users (" Users ").
2. +Added: A.2. Third Party Features. Customer may elect (in its sole discretion) to use features, services or other content made available by third parties to Customer through the Services (" Third Party Features "). Customer acknowledges and agrees that Third Party Features are not Services and, accordingly, Anthropic is not responsible for them.
3. +Added: A.3. Feedback. If Customer provides (in its sole discretion) Anthropic with feedback regarding the Services, Anthropic may use that feedback at its own risk and without obligation to Customer.
4. -Removed: Overview. Subject to these Terms, Anthropic gives Customer permission to use the Services, including to power products and services Customer makes available to its own customers and end users (" Users ").
5. -Removed: Third Party Features. Customer may elect (in its sole discretion) to use features, services or other content made available by third parties to Customer through the Services (" Third Party Features "). Customer acknowledges and agrees that Third Party Features are not Services and, accordingly, Anthropic is not responsible for them.
6. -Removed: Feedback. If Customer provides (in its sole discretion) Anthropic with feedback regarding the Services, Anthropic may use that feedback at its own risk and without obligation to Customer.
7. +Added: D.1. Compliance. Each party will comply with all laws applicable to the provision (for Anthropic) and use (for Customer) of the Services, including any applicable data privacy laws.
8. +Added: D.2. Policies and Service Terms. Customer and its Users may only use the Services in compliance with these Terms, including (a) the Usage Policy (" Usage Policy ", which was previously referred to as the Acceptable Use Policy), (b) our policy on the countries and regions Anthropic currently supports (" Supported Regions Policy ") and (c) our Service Specific Terms , each of which is incorporated by reference into these Terms. Customer must cooperate with reasonable requests for information from Anthropic to support compliance with its Usage Policy, including to verify Customer's identity and use of the Services.
9. +Added: D.3. Limitations of Outputs; Notice to Users. It is Customer's responsibility to evaluate whether Outputs are appropriate for Customer's use case, including where human review is appropriate, before using or sharing Outputs. Customer acknowledges, and must notify its Users, that factual assertions in Outputs should not be relied upon without independently checking their accuracy, as they may be false, incomplete, misleading or not reflective of recent events or information. Customer further acknowledges that Outputs may contain content inconsistent with Anthropic's views.
10. +Added: D.4. Use Restrictions. Customer may not and must not attempt to (a) access the Services to build a competing product or service, including to train competing AI models or resell the Services except as expressly approved by Anthropic; (b) reverse engineer or duplicate the Services; or (c) support any third party's attempt at any of the conduct restricted in this sentence.
11. +Added: D.5. Service Account. Customer is responsible for all activity under its account. Customer will promptly notify Anthropic if Customer believes the account it uses to access the Services has been compromised, or is subject to a denial of service or similar malicious attack that may negatively impact the Services.
12. +Added: E.1. Confidential Information. The parties may share information that is identified as confidential, proprietary, or similar, or that a party would reasonably understand to be confidential or proprietary ( "Confidential Information" ). Customer Content is Customer's Confidential Information.
13. +Added: E.2. Obligations of Parties. The receiving party ( "Recipient" ) may only use Confidential Information of the disclosing party ( "Discloser" ) to exercise its rights and perform its obligations under these Terms. Recipient may only share Discloser's Confidential Information to Recipient's employees, agents, and advisors that have a need to know such Confidential Information and who are bound to obligations of confidentiality at least as protective as those provided in these Terms ( "Representatives" ). Recipient will protect Discloser's Confidential Information from unauthorized use, access, or disclosure in the same manner as Recipient protects its own Confidential Information, and with no less than reasonable care. Recipient is responsible for all acts and omissions of its Representatives.
14. +Added: E.3. Exclusions. Confidential Information excludes information that: (a) becomes publicly available through no fault of Recipient; (b) is obtained by Recipient from a third party without a breach of the third party's obligations of confidentiality; or (c) is independently developed by Recipient without use of Confidential Information. Recipient may disclose Discloser's Confidential Information to the extent it is required by law, or court or administrative order, and will, except where expressly prohibited, notify Discloser of the required disclosure promptly and fully cooperate with Discloser's efforts to prevent or narrow the scope of disclosure.
15. +Added: E.4. Destruction Request. Recipient will destroy Discloser's Confidential Information promptly upon request, except where retained to comply with law or copies in Recipient's automated back-up systems, which will remain subject to these obligations of confidentiality while maintained.
16. -Removed: Compliance. Each party will comply with all laws applicable to the provision (for Anthropic) and use (for Customer) of the Services, including any applicable data privacy laws.
17. -Removed: Policies and Service Terms. Customer and its Users may only use the Services in compliance with these Terms, including (a) the Usage Policy (" Usage Policy ", which was previously referred to as the Acceptable Use Policy), (b) our policy on the countries and regions Anthropic currently supports (" Supported Regions Policy ") and (c) our Service Specific Terms , each of which is incorporated by reference into these Terms. Customer must cooperate with reasonable requests for information from Anthropic to support compliance with its Usage Policy, including to verify Customer's identity and use of the Services.
18. -Removed: Limitations of Outputs; Notice to Users. It is Customer's responsibility to evaluate whether Outputs are appropriate for Customer's use case, including where human review is appropriate, before using or sharing Outputs. Customer acknowledges, and must notify its Users, that factual assertions in Outputs should not be relied upon without independently checking their accuracy, as they may be false, incomplete, misleading or not reflective of recent events or information. Customer further acknowledges that Outputs may contain content inconsistent with Anthropic's views.
19. -Removed: Use Restrictions. Customer may not and must not attempt to (a) access the Services to build a competing product or service, including to train competing AI models or resell the Services except as expressly approved by Anthropic; (b) reverse engineer or duplicate the Services; or (c) support any third party's attempt at any of the conduct restricted in this sentence.
20. -Removed: Service Account. Customer is responsible for all activity under its account. Customer will promptly notify Anthropic if Customer believes the account it uses to access the Services has been compromised, or is subject to a denial of service or similar malicious attack that may negatively impact the Services.
21. -Removed: Confidential Information. The parties may share information that is identified as confidential, proprietary, or similar, or that a party would reasonably understand to be confidential or proprietary ( "Confidential Information" ). Customer Content is Customer's Confidential Information.
22. -Removed: Obligations of Parties. The receiving party ( "Recipient" ) may only use Confidential Information of the disclosing party ( "Discloser" ) to exercise its rights and perform its obligations under these Terms. Recipient may only share Discloser's Confidential Information to Recipient's employees, agents, and advisors that have a need to know such Confidential Information and who are bound to obligations of confidentiality at least as protective as those provided in these Terms ( "Representatives" ). Recipient will protect Discloser's Confidential Information from unauthorized use, access, or disclosure in the same manner as Recipient protects its own Confidential Information, and with no less than reasonable care. Recipient is responsible for all acts and omissions of its Representatives.
23. -Removed: Exclusions. Confidential Information excludes information that: (a) becomes publicly available through no fault of Recipient; (b) is obtained by Recipient from a third party without a breach of the third party's obligations of confidentiality; or (c) is independently developed by Recipient without use of Confidential Information. Recipient may disclose Discloser's Confidential Information to the extent it is required by law, or court or administrative order, and will, except where expressly prohibited, notify Discloser of the required disclosure promptly and fully cooperate with Discloser's efforts to prevent or narrow the scope of disclosure.
24. -Removed: Destruction Request. Recipient will destroy Discloser's Confidential Information promptly upon request, except where retained to comply with law or copies in Recipient's automated back-up systems, which will remain subject to these obligations of confidentiality while maintained.
25. +Added: H.1. Payment of Fees. Customer is responsible for fees incurred by its account, at the rates specified on the Model Pricing Page , unless otherwise agreed by the parties. Anthropic may require prepayment for the Services in the form of credits or offer other types of credits, all of which are subject to Anthropic's Supplemental Credits Terms . Anthropic may update the published rates, to be effective the earlier of 30 days after the updates are posted by Anthropic or Customer otherwise receives Notice.
26. +Added: H.2. Taxes. Fees do not include any taxes, duties, or assessments that may be owed by Customer for use of the Services (" Taxes "), unless otherwise specified in the applicable invoice. Customer is responsible for remitting any necessary withholding Taxes to the relevant authority on a timely basis and providing Anthropic with evidence of the same upon request. Where law provides for the reduction or elimination of withholding taxes, including via tax treaty, the parties will collaborate in good faith to do so. For clarity, Customer must pay Anthropic the amount (" Gross-up Payment ") that will ensure that Anthropic receives the same total amount that it would have received if no such withholding or reduction by Customer had been required (taking into account any and all applicable Taxes (including any Taxes imposed on the Gross-up Payment)).
27. +Added: H.3. Billing. Failure to pay Anthropic all amounts owed when due may result in suspension or termination of Customer's access to the Services. Anthropic reserves any other rights of collection it may have.
28. +Added: I.1. Term. These Terms start on the Effective Date and continue until terminated (the " Term ").
29. +Added: I.2.a. Each party may terminate these Terms at any time for convenience with Notice, except Anthropic must provide 30 days prior Notice.
30. +Added: I.2.b. Either party may terminate these Terms for the other party's material breach by providing 30 days prior Notice detailing the nature of the breach unless cured within that time.
31. +Added: I.2.c. Anthropic may terminate these Terms immediately with Notice if Anthropic reasonably believes or determines that Anthropic's provision of the Services to Customer is prohibited by applicable law.
32. +Added: I.3.a. Anthropic may suspend Customer's access to any portion or all of the Services if: (a) Anthropic reasonably believes or determines that (i) there is a risk to or attack on any of the Services; (ii) Customer or any User is using the Services in violation of Sections D.1 (Compliance), D.2 (Policies and Service Terms) or D.4 (Use Restrictions); or (iii) Anthropic's provision of the Services to Customer is prohibited by applicable law or would result in a material increase in the cost of providing the Services; or (b) any vendor suspends or terminates Anthropic's use of any third-party services or products required to enable Customer to access the Services (each, a " Service Suspension ").
33. +Added: I.3.b. Anthropic will use reasonable efforts to provide written notice of any Service Suspension to Customer, and resume providing access to the Services, as soon as reasonably possible after the event giving rise to the Service Suspension is cured, where curable. Anthropic will have no liability for any damage, liabilities, losses (including any loss of data or profits), or any other consequences that Customer may incur because of a Service Suspension.
34. +Added: I.4. Effect of Termination. Upon termination, Customer may no longer access the Services. The following provisions will survive termination or expiration of these Terms: (a) Sections E (Confidentiality), G (Publicity), H (Fees), I (Termination and Suspension), J (Disputes), K (Indemnification), L.2 (Disclaimer of Warranties), L.3 (Limits on Liability), and M (Miscellaneous); (b) any provision or condition that must survive to fulfill its essential purpose.
35. +Added: J.1. Disputes. In the event of a dispute, claim or controversy relating to these Terms (" Dispute "), the parties will first attempt in good faith to informally resolve the matter. The party raising the Dispute must notify the other party (" Dispute Notice "). The other party will respond to the Dispute Notice in a timely manner. If the parties have not resolved the dispute within 45 days of delivery of the Dispute Notice, either party may seek to resolve the dispute through arbitration as stated in Section J.2 (Arbitration).
36. +Added: J.2. Arbitration. Any Dispute will be determined in English by final, binding arbitration according to the region-specific processes below. Judgment on any award issued through the arbitration process in this Section J.2 (Arbitration) may be entered in any court having jurisdiction. EACH PARTY AGREES THEY ARE WAIVING THE RIGHT TO A TRIAL BY JURY, AND THE RIGHT TO JOIN AND PARTICIPATE IN A CLASS ACTION, TO THE FULLEST EXTENT PERMITTED UNDER THE LAW IN CONNECTION WITH THESE TERMS.
37. +Added: J.2.a. For Customers residing in the EEA, Switzerland or UK, Disputes will be determined by a sole arbitrator in Dublin, Ireland pursuant the UNCITRAL Arbitration Rules as at present in force. The appointing authority shall be the President for the time being of the Law Society of Ireland.
38. +Added: J.2.b. For Customers residing anywhere else, Disputes will be determined by a sole arbitrator in San Francisco, CA pursuant to the Comprehensive Arbitration Rules and Procedures of Judicial Arbitration and Mediation Services, Inc.
39. +Added: J.3. Equitable Relief. This Section J (Disputes) does not limit either party from seeking equitable relief.
40. +Added: K.1. Claims Against Customer. Anthropic will defend Customer and its personnel, successors, and assigns from and against any Customer Claim (as defined below) and indemnify them for any judgment that a court of competent jurisdiction grants a third party on such Customer Claim or that an arbitrator awards a third party under any Anthropic-approved settlement of such Customer Claim. " Customer Claim " means a third-party claim, suit, or proceeding alleging that Customer's paid use of the Services (which includes data Anthropic has used to train a model that is part of the Services) in accordance with these Terms or Outputs generated through such authorized use violates any third-party intellectual property right.
41. +Added: K.2. Claims Against Anthropic. Customer will defend Anthropic and its personnel, successors, and assigns from and against any Anthropic Claim (as defined below) and indemnify them for any judgment that a court of competent jurisdiction grants a third party on such Anthropic Claim or that an arbitrator awards a third party under any Customer-approved settlement of such Anthropic Claim. " Anthropic Claim " means any third-party claim, suit, or proceeding related to Customer's or its Users' (a) Inputs or other data provided by Customer, or (b) use of the Services in violation of the Usage Policy, the Service Specific Terms, or Section D.4 (Use Restrictions). Anthropic Claims and Customer Claims are each a " Claim ", as applicable.
42. +Added: K.3. Exclusions. Neither party's defense or indemnification obligations will apply to the extent the underlying allegation arises from the indemnified party's fraud, willful misconduct, violations of law, or breach of the Agreement. Additionally, Anthropic's defense and indemnification obligations will not apply to the extent the Customer Claim arises from: (a) modifications made by Customer to the Services or Outputs; (b) the combination of the Services or Outputs with technology or content not provided by Anthropic; (c) Inputs or other data provided by Customer; (d) use of the Services or Outputs in a manner that Customer knows or reasonably should know violates or infringes the rights of others; (e) the practice of a patented invention contained in an Output; or (f) an alleged violation of trademark based on use of an Output in trade or commerce.
43. +Added: K.4. Process. The indemnified party must promptly notify the indemnifying party of the relevant Claim, and will reasonably cooperate in the defense. The indemnifying party will retain the right to control the defense of any such Claim, including the selection of counsel, the strategy and course of any litigation or appeals, and any negotiations or settlement or compromise, except that the indemnified party will have the right, not to be exercised unreasonably, to reject any settlement or compromise that requires that it admit wrongdoing or liability or subjects it to an ongoing affirmative obligation. The indemnifying party's obligations will be excused if either of the following materially prejudices the defense: (a) failure of the indemnified party to provide prompt notice of the Claim; or (b) failure to reasonably cooperate in the defense.
44. +Added: K.5. Sole Remedy. To the extent covered under this Section K (Indemnification), indemnification is each party's sole and exclusive remedy under these Terms for any third-party claims.
45. -Removed: Payment of Fees. Customer is responsible for fees incurred by its account, at the rates specified on the Model Pricing Page , unless otherwise agreed by the parties. Anthropic may require prepayment for the Services in the form of credits or offer other types of credits, all of which are subject to Anthropic's Supplemental Credits Terms . Anthropic may update the published rates, to be effective the earlier of 30 days after the updates are posted by Anthropic or Customer otherwise receives Notice.
46. -Removed: Taxes. Fees do not include any taxes, duties, or assessments that may be owed by Customer for use of the Services (" Taxes "), unless otherwise specified in the applicable invoice. Customer is responsible for remitting any necessary withholding Taxes to the relevant authority on a timely basis and providing Anthropic with evidence of the same upon request. Where law provides for the reduction or elimination of withholding taxes, including via tax treaty, the parties will collaborate in good faith to do so. For clarity, Customer must pay Anthropic the amount (" Gross-up Payment ") that will ensure that Anthropic receives the same total amount that it would have received if no such withholding or reduction by Customer had been required (taking into account any and all applicable Taxes (including any Taxes imposed on the Gross-up Payment)).
47. -Removed: Billing. Failure to pay Anthropic all amounts owed when due may result in suspension or termination of Customer's access to the Services. Anthropic reserves any other rights of collection it may have.
48. -Removed: Term. These Terms start on the Effective Date and continue until terminated (the " Term ").
49. -Removed: Each party may terminate these Terms at any time for convenience with Notice, except Anthropic must provide 30 days prior Notice.
50. -Removed: Either party may terminate these Terms for the other party's material breach by providing 30 days prior Notice detailing the nature of the breach unless cured within that time.
51. -Removed: Anthropic may terminate these Terms immediately with Notice if Anthropic reasonably believes or determines that Anthropic's provision of the Services to Customer is prohibited by applicable law.
52. -Removed: Anthropic may suspend Customer's access to any portion or all of the Services if: (a) Anthropic reasonably believes or determines that (i) there is a risk to or attack on any of the Services; (ii) Customer or any User is using the Services in violation of Sections D.1 (Compliance), D.2 (Policies and Service Terms) or D.4 (Use Restrictions); or (iii) Anthropic's provision of the Services to Customer is prohibited by applicable law or would result in a material increase in the cost of providing the Services; or (b) any vendor suspends or terminates Anthropic's use of any third-party services or products required to enable Customer to access the Services (each, a " Service Suspension ").
53. -Removed: Anthropic will use reasonable efforts to provide written notice of any Service Suspension to Customer, and resume providing access to the Services, as soon as reasonably possible after the event giving rise to the Service Suspension is cured, where curable. Anthropic will have no liability for any damage, liabilities, losses (including any loss of data or profits), or any other consequences that Customer may incur because of a Service Suspension.
54. -Removed: Effect of Termination. Upon termination, Customer may no longer access the Services. The following provisions will survive termination or expiration of these Terms: (a) Sections E (Confidentiality), G (Publicity), H (Fees), I (Termination and Suspension), J (Disputes), K (Indemnification), L.2 (Disclaimer of Warranties), L.3 (Limits on Liability), and M (Miscellaneous); (b) any provision or condition that must survive to fulfill its essential purpose.
55. -Removed: Disputes. In the event of a dispute, claim or controversy relating to these Terms (" Dispute "), the parties will first attempt in good faith to informally resolve the matter. The party raising the Dispute must notify the other party (" Dispute Notice "). The other party will respond to the Dispute Notice in a timely manner. If the parties have not resolved the dispute within 45 days of delivery of the Dispute Notice, either party may seek to resolve the dispute through arbitration as stated in Section J.2 (Arbitration).
56. -Removed: Arbitration. Any Dispute will be determined in English by final, binding arbitration according to the region-specific processes below. Judgment on any award issued through the arbitration process in this Section J.2 (Arbitration) may be entered in any court having jurisdiction. EACH PARTY AGREES THEY ARE WAIVING THE RIGHT TO A TRIAL BY JURY, AND THE RIGHT TO JOIN AND PARTICIPATE IN A CLASS ACTION, TO THE FULLEST EXTENT PERMITTED UNDER THE LAW IN CONNECTION WITH THESE TERMS.
57. -Removed: For Customers residing in the EEA, Switzerland or UK, Disputes will be determined by a sole arbitrator in Dublin, Ireland pursuant the UNCITRAL Arbitration Rules as at present in force. The appointing authority shall be the President for the time being of the Law Society of Ireland.
58. -Removed: For Customers residing anywhere else, Disputes will be determined by a sole arbitrator in San Francisco, CA pursuant to the Comprehensive Arbitration Rules and Procedures of Judicial Arbitration and Mediation Services, Inc.
59. -Removed: Equitable Relief. This Section J (Disputes) does not limit either party from seeking equitable relief.
60. -Removed: Claims Against Customer. Anthropic will defend Customer and its personnel, successors, and assigns from and against any Customer Claim (as defined below) and indemnify them for any judgment that a court of competent jurisdiction grants a third party on such Customer Claim or that an arbitrator awards a third party under any Anthropic-approved settlement of such Customer Claim. " Customer Claim " means a third-party claim, suit, or proceeding alleging that Customer's paid use of the Services (which includes data Anthropic has used to train a model that is part of the Services) in accordance with these Terms or Outputs generated through such authorized use violates any third-party intellectual property right.

38 more changed paragraphs are on the page itself.