Provision record
Anthropic · Claude Sonnet 5 System Card · View original document ↗

Hardcoded Absolute Refusal Behaviors

Medium severity High confidence Explicit document language Unique · 0 of 352 platforms
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Document Record

What it is

The document establishes a category of model behaviors that cannot be unlocked or modified by any operator or user instruction, including refusal to assist with weapons capable of mass casualties and refusal to generate sexual content involving minors.

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This analysis describes what Anthropic's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology

ConductAtlas Analysis

Why it matters (compliance & governance perspective)

This provision establishes a non-negotiable safety floor across all deployment contexts, meaning operators building products on the Claude API cannot contractually or technically override these restrictions, and users cannot prompt the model past them regardless of framing.

Consumer impact (what this means for users)

Under this provision, users of any Claude Sonnet 4.5-powered product will encounter absolute refusals in defined categories regardless of the operator's configuration or the user's instructions, as the document states these behaviors are structurally fixed at the model level.

Cross-platform context

See how other platforms handle Hardcoded Absolute Refusal Behaviors and similar clauses.

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▸ View Original Clause Language DOCUMENT RECORD
"
Hardcoded behaviors are things Claude should always or never do regardless of operator and user instructions. They are actions or abstentions whose potential harms to the world or to trust in Claude or Anthropic are so severe that we think no business or personal justification could outweigh the cost of engaging in them.

Excerpt from Anthropic's Claude Sonnet 5 System Card

ConductAtlas Analysis

Institutional analysis (regulatory & governance intelligence)

1.

Insight

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Enforcement risk, jurisdiction flags, contract triggers, and due diligence action items.

Applicable agencies

  • Federal Trade Commission (ftc)
    Oversees unfair or deceptive business practices and can investigate companies that mislead consumers about data collection, sharing, or use.
    Who can file: Anyone affected by the company's practices (US or international)
    What you need: Your account details, a timeline of relevant events, and a description of the specific issue
    What to expect: Complaints inform FTC enforcement priorities and investigations but do not result in individual resolution or compensation
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Provision details

Document information
Document
Claude Sonnet 5 System Card
Entity
Anthropic
Document last updated
July 6, 2026
Tracking information
First tracked
July 6, 2026
Last verified
July 6, 2026
Record ID
CA-P-013373
Document ID
CA-D-00921
Evidence Provenance
Source URL
Wayback Machine
Content hash (SHA-256)
cdf033accb28f24cdba717a62a97f374bbf1637875644a05d1e43ef6c3f7fa1a
Analysis generated
July 6, 2026 21:57 UTC
Methodology
Evidence
✓ Snapshot stored   ✓ Hash verified
Citation Record
Entity: Anthropic
Document: Claude Sonnet 5 System Card
Record ID: CA-P-013373
Captured: 2026-07-06 21:57:58 UTC
SHA-256: cdf033accb28f24c…
URL: https://conductatlas.com/platform/anthropic/claude-sonnet-5-system-card/provision/CA-P-013373/hardcoded-absolute-refusal-behaviors/
Accessed: Oct. 2, 2026
Permanent archival reference. Stable identifier suitable for legal filings, compliance documentation, and research citation.
Classification
Severity
Medium
Categories

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Frequently Asked Questions

What does Anthropic's Hardcoded Absolute Refusal Behaviors clause do?

This provision establishes a non-negotiable safety floor across all deployment contexts, meaning operators building products on the Claude API cannot contractually or technically override these restrictions, and users cannot prompt the model past them regardless of framing.

How does this clause affect you?

Under this provision, users of any Claude Sonnet 4.5-powered product will encounter absolute refusals in defined categories regardless of the operator's configuration or the user's instructions, as the document states these behaviors are structurally fixed at the model level.

Is ConductAtlas affiliated with Anthropic?

No. ConductAtlas is an independent monitoring service. We are not affiliated with, endorsed by, or sponsored by Anthropic.