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The cross-family check of 2026-11-05 located an Internet Archive capture of 2025-07-17 at the same address; it was not retrieved, so it is not recorded as this source's archive copy."],"evidenceUrl":["https://www-cdn.anthropic.com/07b2a3f9902ee19fe39a36ca638e5ae987bc64dd.pdf"],"language":["en"]}},"evidence":{"n":18,"fields":{"id":["mc-ev-anthropic-claude-4-card-published-1","mc-ev-claude-4-card-cites-rsp-v2-2-1","mc-ev-cell-anthropic-claude-4-q01-1","mc-ev-cell-anthropic-claude-4-q02-1","mc-ev-cell-anthropic-claude-4-q03-1","mc-ev-cell-anthropic-claude-4-q04-1","mc-ev-cell-anthropic-claude-4-q05-1","mc-ev-cell-anthropic-claude-4-q06-1","mc-ev-cell-anthropic-claude-4-q07-1","mc-ev-cell-anthropic-claude-4-q08-1","mc-ev-cell-anthropic-claude-4-q09-1","mc-ev-cell-anthropic-claude-4-q10-1","mc-ev-cell-anthropic-claude-4-q11-1","mc-ev-cell-anthropic-claude-4-q12-1","mc-ev-cell-anthropic-claude-4-q13-1","mc-ev-cell-anthropic-claude-4-q14-1","mc-ev-cell-anthropic-claude-4-q15-1","mc-ev-cell-anthropic-claude-4-q16-1"],"claimId":["mc-anthropic-claude-4-card-published","mc-claude-4-card-cites-rsp-v2-2","mc-cell-anthropic-claude-4-q01","mc-cell-anthropic-claude-4-q02","mc-cell-anthropic-claude-4-q03","mc-cell-anthropic-claude-4-q04","mc-cell-anthropic-claude-4-q05","mc-cell-anthropic-claude-4-q06","mc-cell-anthropic-claude-4-q07","mc-cell-anthropic-claude-4-q08","mc-cell-anthropic-claude-4-q09","mc-cell-anthropic-claude-4-q10","mc-cell-anthropic-claude-4-q11","mc-cell-anthropic-claude-4-q12","mc-cell-anthropic-claude-4-q13","mc-cell-anthropic-claude-4-q14","mc-cell-anthropic-claude-4-q15","mc-cell-anthropic-claude-4-q16"],"sourceId":["mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card","mc-src-claude-4-card"],"sourceRole":["primary","primary"],"support":["supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports","supports"],"verification":["machine_checked","machine_checked"],"retrievalRoute":["direct","direct"],"locator":["Cover, PDF p. 1","§4.1.7 Jailbreak and prefill susceptibility, PDF p. 42","§1.2.3 AI Safety Level determination process, PDF p. 9 (hyperlink annotation on policy name)","§1.2.3, PDF p. 9","§1.2.3 AI Safety Level determination process, PDF p. 9","§1.2.4 Conclusions, PDF p. 10","§1.2.4 Conclusions, PDF p. 10","§7.4 Cyber evaluations, Results, PDF p. 117","§7.3 Autonomy evaluations, PDF p. 105","§4 Alignment assessment, PDF p. 22","§4 Alignment assessment, PDF p. 22","§7.2.4.2 ASL-3 expert red teaming, PDF p. 94","§4.1.1.4 External scenario evaluations, PDF p. 30","§7.5 Third party assessments, PDF p. 122","§1.2.3, PDF p. 9","§4.2.1 Automated behavioral audits, PDF p. 48"],"passage":["May 2025","This style of prompting is not possible in Claude.ai and similar chat interfaces, but it is accessible to developers through our API.","please see the Responsible Scaling Policy","For more information on the requirements for these ASL Standards, please see the Responsible Scaling Policy","we have decided to release Claude Opus 4 under the ASL-3 Standard and Claude Sonnet 4 under the ASL-2 Standard.","The ASL-3 safeguards we have now activated for Claude Opus 4 represent significant investments in both deployment protections and security controls","we cannot clearly rule out ASL-3 risks for Claude Opus 4 (although we have ruled out that it needs the ASL-4 Standard).","Based on the evaluation results, we believe the models do not demonstrate catastrophically risky capabilities in the cyber domain.","Claude Opus 4 shows improvement over Claude Sonnet 3.7 in most AI research and software engineering capabilities, while remaining below the ASL-4 Autonomy threshold.","In this assessment, we aim to detect a cluster of related phenomena including: … attempts to manipulate users toward certain views. We conducted testing continuously throughout finetuning","None of the snapshots we tested showed significant signs of systematic deception or coherent hidden goals.","Red-teamers probed various scenarios over three days of testing","we contracted with Apollo Research to assess an early snapshot for propensities and capabilities related to sabotage","joint pre-deployment testing of the new Claude Opus 4 model was conducted by the US AI Safety Institute (US AISI) and the UK AI Security Institute (UK AISI).","Based on these assessments, we have decided to release Claude Opus 4 under the ASL-3 Standard and Claude Sonnet 4 under the ASL-2 Standard.","The absolute values of these metrics depend on our largely-arbitrary choice of auditor instructions."],"passageType":["quote","quote","quote","quote","quote","quote","quote","quote","quote","quote","quote","quote","quote","quote","quote","quote"]},"held":{"sourceRole":[0,1],"verification":[0,1],"retrievalRoute":[0,1],"locator":[2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],"passage":[2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],"passageType":[2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1]}}}}