Claim · 2024-10-22 · revision · Stated in source · Supported

Anthropic published the Claude 3 model card; the copy read is its revision of October 22, 2024.

One recorded claim. The claim panel gives its qualification, the source passages with their place in each source, and how it was checked.

What it connects

Anthropic → published → The Claude 3 Model Family: Opus, Sonnet, Haiku

Where it appears

No collection page holds this claim. It is listed with its records in the explorer.

Claim and evidence

Anthropicpublished ↓The Claude 3 Model Family: Opus, Sonnet, Haiku

Machine-checkedStated in sourceSupported

Supporting evidence: primary · 1 source

Object version: The revision with update lines of June 20 and October 22, 2024 · Publication date unknown · Effective date not established · Revised 2024-10-22
Date: 2024-10-22 · revision Records dated 2024 →

Scope and limitsThe date recorded is the latest revision printed on the expression read, not a first publication date. Publication is not evidence that the evaluations described were carried out as described.

The evidence 02

primary sourceSupports the claim

The Claude 3 Model Family: Opus, Sonnet, Haiku

Anthropic · Publication date unknown

Cite the original source

Cite the original document, not Selekoa. Check these details against it.

Source excerpt

“Update (June 20, 2024): We have added an addendum covering Claude 3.5 Sonnet.”

Location in source Abstract, PDF p. 1

How it was read Retrieved directly from the publisher

Machine-checked · 2026-11-04

Source details and check notes

Authors: Anthropic
Version: Retrieved for the candidate pack on 2026-11-04 (SHA-256 88ae851f53c3034d436816164ce49a876b333fa9b550fb7ef29838182b59ba7d) directly from the publisher’s host. Retrieved again on 2026-11-03 with the same SHA-256. The copy read is the revision of October 22, 2024; its PDF pages 43 to 63 hold the two Claude 3.5 addenda, which are separate cards and were not read for this row. The cross-family check of 2026-11-04 retrieved the original 42-page expression from an Internet Archive capture of 2024-03-04 at an earlier address (https://www-cdn.anthropic.com/de8ba9b01c9ab7cbabf5c33b80b7bbc618857627/Model_Card_Claude_3.pdf); it is not recorded as this source's archive copy because its bytes are those of another expression.
Version date: 2024-10-22
Canonical address: Open the canonical source ↗
Accessed: 2026-11-04
Language: English (en)
Attribution: Anthropic, “The Claude 3 Model Family: Opus, Sonnet, Haiku”.
Reuse: No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution.
Check notes: Candidate pack passage, model cards compared (research/model-cards-2). The quotation (13 words) matched the card’s text retrieved for the candidate pack on 2026-11-04 (SHA-256 88ae851f53c3034d436816164ce49a876b333fa9b550fb7ef29838182b59ba7d) and again on 2026-11-04, after the adjudication, in a fresh retrieval with the same SHA-256. Matching ignored differences of whitespace, case, quotation marks, dashes, PDF line-break hyphens and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-11-04, item 41) checked this passage’s cell and agreed with the pack. No human editorial review.

primary sourceSupports the claim

The Claude 3 Model Family: Opus, Sonnet, Haiku

Anthropic · Publication date unknown

Cite the original source

Cite the original document, not Selekoa. Check these details against it.

Source excerpt

“Update (October 22, 2024): We have added an addendum covering an upgrade to Claude 3.5 Sonnet and Claude 3.5 Haiku.”

Location in source Abstract, PDF p. 1

How it was read Retrieved directly from the publisher

Machine-checked · 2026-11-04

Source details and check notes

Authors: Anthropic
Version: Retrieved for the candidate pack on 2026-11-04 (SHA-256 88ae851f53c3034d436816164ce49a876b333fa9b550fb7ef29838182b59ba7d) directly from the publisher’s host. Retrieved again on 2026-11-03 with the same SHA-256. The copy read is the revision of October 22, 2024; its PDF pages 43 to 63 hold the two Claude 3.5 addenda, which are separate cards and were not read for this row. The cross-family check of 2026-11-04 retrieved the original 42-page expression from an Internet Archive capture of 2024-03-04 at an earlier address (https://www-cdn.anthropic.com/de8ba9b01c9ab7cbabf5c33b80b7bbc618857627/Model_Card_Claude_3.pdf); it is not recorded as this source's archive copy because its bytes are those of another expression.
Version date: 2024-10-22
Canonical address: Open the canonical source ↗
Accessed: 2026-11-04
Language: English (en)
Attribution: Anthropic, “The Claude 3 Model Family: Opus, Sonnet, Haiku”.
Reuse: No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution.
Check notes: Candidate pack passage, model cards compared (research/model-cards-2). The quotation (20 words) matched the card’s text retrieved for the candidate pack on 2026-11-04 (SHA-256 88ae851f53c3034d436816164ce49a876b333fa9b550fb7ef29838182b59ba7d) and again on 2026-11-04, after the adjudication, in a fresh retrieval with the same SHA-256. Matching ignored differences of whitespace, case, quotation marks, dashes, PDF line-break hyphens and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-11-04, item 41) checked this passage’s cell and agreed with the pack. No human editorial review.

Status and meaning

Editorial status. Machine-checked. Machines found this record and checked it against its sources; no person accepted it individually. Each evidence record above shows how it was checked.

Relation. Publication of a specific document or version. Publication of a policy is not evidence of implementation.

Date. The later of the two update lines printed on the copy read; the card prints no issue date of its own. An earlier publication month on Anthropic's index was located but is not recorded here.

Record ID mc-anthropic-claude-3-card-published