{"statement_id":"st_7454e1971bec50f340b0","subject":{"kind":"product","slug":"claude","name":"Claude","url":"https://sourcetier.com/products/claude"},"attribute":{"key":"entry_price_month_usd","label":"Entry price per month","unit":"USD","core":true},"scope":null,"region":null,"first_recorded_at":"2026-09-01T23:17:59.941Z","current":{"claim_id":"fbaacd50-9ec1-4094-a849-3b5f308211de","value":17,"unit":"USD","verification_state":"verified","confidence_recorded":90,"observed_on":"2026-09-01","recorded_at":"2026-09-04T12:37:37.280Z","ended_at":null,"ended_by":null,"superseded_by_claim_id":null,"withdrawal_reason":null,"valid_from":null,"extraction":null,"reader":null,"parser_version":null,"method":null,"excerpt":null,"sources":[{"url":"https://www.anthropic.com/pricing","tier":1,"type":"official_pricing","retrieved_on":"2026-09-01","role":"evidence"}]},"version_count":3,"versions":[{"claim_id":"9f910edc-adf8-41de-b994-1e07831a98fa","value":17,"unit":"USD","verification_state":"verified","confidence_recorded":90,"observed_on":"2026-09-01","recorded_at":"2026-09-01T23:17:59.941Z","ended_at":"2026-09-02T19:49:50.162Z","ended_by":"superseded","superseded_by_claim_id":"7cc3a45b-cea9-47ac-8fd2-02aafddc437b","withdrawal_reason":null,"valid_from":null,"extraction":null,"reader":null,"parser_version":null,"method":null,"excerpt":null,"sources":[{"url":"https://www.anthropic.com/pricing","tier":1,"type":"official_pricing","retrieved_on":"2026-09-01","role":"evidence"},{"url":"https://www.anthropic.com/pricing","tier":1,"type":"official_pricing","retrieved_on":"2026-09-02","role":"evidence"}]},{"claim_id":"7cc3a45b-cea9-47ac-8fd2-02aafddc437b","value":null,"unit":"USD","verification_state":"unknown","confidence_recorded":0,"observed_on":"2026-09-02","recorded_at":"2026-09-02T19:49:50.162Z","ended_at":"2026-09-04T12:37:37.280Z","ended_by":"superseded","superseded_by_claim_id":"fbaacd50-9ec1-4094-a849-3b5f308211de","withdrawal_reason":null,"valid_from":null,"extraction":null,"reader":null,"parser_version":null,"method":null,"excerpt":null,"sources":[{"url":"https://www.anthropic.com/pricing","tier":1,"type":"official_pricing","retrieved_on":"2026-09-02","role":"checked_without_finding"},{"url":"https://www.anthropic.com/pricing","tier":1,"type":"official_pricing","retrieved_on":"2026-09-03","role":"checked_without_finding"},{"url":"https://www.anthropic.com/pricing","tier":1,"type":"official_pricing","retrieved_on":"2026-09-04","role":"checked_without_finding"}]},{"claim_id":"fbaacd50-9ec1-4094-a849-3b5f308211de","value":17,"unit":"USD","verification_state":"verified","confidence_recorded":90,"observed_on":"2026-09-01","recorded_at":"2026-09-04T12:37:37.280Z","ended_at":null,"ended_by":null,"superseded_by_claim_id":null,"withdrawal_reason":null,"valid_from":null,"extraction":null,"reader":null,"parser_version":null,"method":null,"excerpt":null,"sources":[{"url":"https://www.anthropic.com/pricing","tier":1,"type":"official_pricing","retrieved_on":"2026-09-01","role":"evidence"}]}],"changes":[{"id":"13","type":"documented","label":"First documented","material":true,"sentence":"Claude: Entry price per month documented as 17 (verified). A first finding of ours, not a change at the vendor.","noticed_at":"2026-09-01T23:17:59.941Z","subject":{"kind":"product","slug":"claude","name":"Claude"},"before":null,"after":{"value":17,"verification_state":"verified","confidence":90},"claim_id":"9f910edc-adf8-41de-b994-1e07831a98fa","statement_id":"st_7454e1971bec50f340b0","corrected":null},{"id":"63733","type":"research_update","label":"Research update","material":false,"sentence":"Claude: Entry price per month is no longer documented as 17; that value was withdrawn and is now recorded as not measured. This describes our measurement, not a change at the vendor. Corrected on 2026-09-04: the value returned to the earlier form; two of our own readers write it differently, and this was not a change at the vendor.","noticed_at":"2026-09-02T19:49:50.162Z","subject":{"kind":"product","slug":"claude","name":"Claude"},"before":{"value":17,"verification_state":"verified","confidence":90},"after":{"value":null,"verification_state":"unknown","confidence":0},"claim_id":"7cc3a45b-cea9-47ac-8fd2-02aafddc437b","statement_id":"st_7454e1971bec50f340b0","corrected":{"by_event_id":"75588","on":"2026-09-04","reason":"the same value returned on 2026-09-04; two of our own readers write it differently. This was not a change at the vendor."}},{"id":"75588","type":"documented","label":"First documented","material":true,"sentence":"Claude: Entry price per month documented as 17 (verified). A first finding of ours, not a change at the vendor.","noticed_at":"2026-09-04T12:37:37.280Z","subject":{"kind":"product","slug":"claude","name":"Claude"},"before":{"value":null,"verification_state":"unknown","confidence":0},"after":{"value":17,"verification_state":"verified","confidence":90},"claim_id":"fbaacd50-9ec1-4094-a849-3b5f308211de","statement_id":"st_7454e1971bec50f340b0","corrected":null}],"page_url":"https://sourcetier.com/statements/st_7454e1971bec50f340b0","contract":"A statement is the question a claim answers: one subject, one attribute, one scope and region. statement_id stays the same when a new value supersedes the old one, when we withdraw it and when two duplicate entities are merged (the old id then redirects). claim_id identifies one version. versions lists every version oldest first; ended_by is superseded, withdrawn or null for the current one. confidence_recorded is the confidence stored when that version was written, not a recomputation. unknown describes our research, never the product."}