The document states that the system card was amended after initial publication on April 24, 2026 to add disclosures specific to the deployment of GPT-5.5 and GPT-5.5 Pro through the API.
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This provision establishes that material API safeguard information was added to the system card after the model's initial release, which is operationally significant for API users who may have assessed deployment risks based on the original document. Compliance teams should confirm they are reviewing the April 24, 2026 version of the system card.
API users of GPT-5.5 or GPT-5.5 Pro should note that the system card governing their deployment context was updated after initial publication to include additional safeguard disclosures specific to the API setting. Users who reviewed the document prior to April 24, 2026 should review the updated version.
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Compare across platforms →"This card was updated on April 24, 2026, to include additional information about safeguards for the deployment of GPT‑5.5 and GPT‑5.5 Pro in the API.Excerpt from OpenAI's GPT-5.5 System Card
(1) REGULATORY LANDSCAPE: Post-publication amendments to safety disclosure documents may interact with AI incident reporting obligations and transparency requirements under the EU AI Act, which contemplates ongoing documentation obligations for high-risk AI systems.
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This provision establishes that material API safeguard information was added to the system card after the model's initial release, which is operationally significant for API users who may have assessed deployment risks based on the original document. Compliance teams should confirm they are reviewing the April 24, 2026 version of the system card.
API users of GPT-5.5 or GPT-5.5 Pro should note that the system card governing their deployment context was updated after initial publication to include additional safeguard disclosures specific to the API setting. Users who reviewed the document prior to April 24, 2026 should review the updated version.
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