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Claude 3.7 Sonnet System Card states evaluation result ↓ The card states that ASL-2 safeguards remain appropriate for Claude 3.7 Sonnet, while reporting improved performance in all domains including some uplift in CBRN evaluations, and a substantial probability that the next model may require ASL-3 safeguards. The Claude 3.7 Sonnet System Card states that ASL-2 safeguards remain appropriate for the model, that its evaluations suggest improved performance in all domains including some uplift in CBRN evaluations, and that on what it observed in recent CBRN testing there is a substantial probability that the next model may require ASL-3 safeguards. Copy claim link
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Supporting evidence: primary · 1 source; Context: primary · 1 source
Date Date unknown Evaluated system Claude 3.7 Sonnet, final release model unless the card states otherwise What the report measured Whether the model reaches the ASL-3 capability threshold for CBRN, with biological risks the primary focus By what kind of method Automated knowledge and skill-testing evaluations, uplift studies designed to proxy real-world tasks, external expert red teaming and long-form agentic evaluations The result, in the report’s words ASL-2 safeguards remain appropriate; improved performance in all domains, including some uplift in CBRN evaluations; a substantial probability that the next model may require ASL-3 safeguards The caveats the report gives The card states that some specific evaluation thresholds and results in the CBRN domain are considered sensitive and are not shared publicly, and that how the model performs on expert-level evaluations may not directly translate to real-world capabilities. Scope and limits A developer's determination under its own policy, for the model and evaluations the card describes. The stated expectation about a next model is the card's own statement about the future, not a recorded event. The card also states that some specific CBRN thresholds and results are treated as sensitive and not published, so the published basis is incomplete. Only determination-level and caveat sentences are cited; the card's CBRN results section holds technical content, which is excluded.
The evidence 04 primary source Supports the claim
Claude 3.7 Sonnet System Card ↗ Anthropic · Publication date unknown
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Source excerpt “RSP safeguards required for Claude 3.7 Sonnet: ASL-2” Location in source PDF p. 23, §7 RSP Evaluations, heading line
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Anthropic Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6). 42-page PDF as served on 2026-10-28; the request to assets.anthropic.com redirected to https://www-cdn.anthropic.com/9ff93dfa8f445c932415d335c88852ef47f1201e.pdf. The document itself states no publication date; its references are dated February 2025. Retrieved again at admission on 2026-10-30 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6, the same bytes). Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Anthropic, “Claude 3.7 Sonnet System Card”. 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, AI and biosecurity (research/ai-bio). The quotation (8 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval whose SHA-256 equals the pack’s. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-30, item 47) re-read the record’s sources and found full support. No human editorial review. primary source Supports the claim
Claude 3.7 Sonnet System Card ↗ Anthropic · Publication date unknown
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Source excerpt “the results from our evaluations suggest improved performance in all domains, including some uplift in CBRN evaluations” Location in source PDF p. 24, §7.1 CBRN Evaluations, conclusion paragraph
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Anthropic Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6). 42-page PDF as served on 2026-10-28; the request to assets.anthropic.com redirected to https://www-cdn.anthropic.com/9ff93dfa8f445c932415d335c88852ef47f1201e.pdf. The document itself states no publication date; its references are dated February 2025. Retrieved again at admission on 2026-10-30 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6, the same bytes). Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Anthropic, “Claude 3.7 Sonnet System Card”. 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, AI and biosecurity (research/ai-bio). The quotation (17 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval whose SHA-256 equals the pack’s. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-30, item 47) re-read the record’s sources and found full support. No human editorial review. primary source Supports the claim
Claude 3.7 Sonnet System Card ↗ Anthropic · Publication date unknown
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Source excerpt “based on what we observed in our recent CBRN testing, we believe there is a substantial probability that our next model may require ASL-3 safeguards” Location in source PDF p. 24, §7.1, conclusion paragraph
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Anthropic Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6). 42-page PDF as served on 2026-10-28; the request to assets.anthropic.com redirected to https://www-cdn.anthropic.com/9ff93dfa8f445c932415d335c88852ef47f1201e.pdf. The document itself states no publication date; its references are dated February 2025. Retrieved again at admission on 2026-10-30 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6, the same bytes). Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Anthropic, “Claude 3.7 Sonnet System Card”. 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, AI and biosecurity (research/ai-bio). The quotation (25 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval whose SHA-256 equals the pack’s. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-30, item 47) re-read the record’s sources and found full support. No human editorial review. primary source Context only
Claude 3.7 Sonnet System Card ↗ Anthropic · Publication date unknown
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Source excerpt “Under our RSP framework, we consider some of the specific evaluation thresholds and results in the CBRN domain sensitive, and therefore we do not share them publicly.” Location in source PDF p. 23, §7.1, 'Threshold and evaluations' paragraph
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors Anthropic Version Retrieved for the candidate pack on 2026-10-28 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6). 42-page PDF as served on 2026-10-28; the request to assets.anthropic.com redirected to https://www-cdn.anthropic.com/9ff93dfa8f445c932415d335c88852ef47f1201e.pdf. The document itself states no publication date; its references are dated February 2025. Retrieved again at admission on 2026-10-30 (SHA-256 82947a46fc2d1b9a1d69501ef973fc3c5b328b703b9a17bd8a143c2672f8a1a6, the same bytes). Canonical address Open the canonical source ↗ Accessed 2026-10-28 Language English (en) Attribution Anthropic, “Claude 3.7 Sonnet System Card”. 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, AI and biosecurity (research/ai-bio). The quotation (27 words) matched the text retrieved for the candidate pack on 2026-10-28 and again at admission on 2026-10-30, in a fresh retrieval whose SHA-256 equals the pack’s. Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms, so the source’s typography can differ. The card's stated limit on what it publishes. A cross-family machine check (2026-10-30, item 47) re-read the record’s sources and found full support. No human editorial review. Status and meaning Editorial status. Not reviewed by an editor . An exploratory record that no editor has accepted. This status does not say whether a person has read any linked passage. Each evidence record above shows how it was checked.
Relation. A report states the result of an evaluation it ran or commissioned, in its own words, with what was measured, by what kind of method, and the caveats the report itself gives (schema 2.22). The record is the report’s statement, not a verified finding: it says nothing about another system, a later version or real-world risk, and a null or limiting result is not evidence that no effect exists.
Date. The card states no date; the determination is recorded as the card's, without a date.
Record ID ab-ev-claude37-asl2-determination