GPT-5.4 Thinking System Card
OpenAI published a system card for GPT-5.4 Thinking, a model in the GPT-5 family with explicit reasoning/thinking capabilities. The system card likely covers safety evaluations, capability assessments, and deployment considerations for this model. No body content was available for detailed analysis.
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GPT-5.5 System Card
OpenAI has published the system card for GPT-5.5, a new model in their GPT series. The system card documents safety evaluations, capability assessments, and deployment considerations for the model. As a tier 1 source announcement, this represents an official release document accompanying a new frontier model.
GPT-5.5 Instant System Card
OpenAI has published a system card for GPT-5.5 Instant, a model in their GPT-5 family. The system card likely covers safety evaluations, capability assessments, and deployment considerations for this model. No body content was provided, limiting detailed analysis of the specific findings or model characteristics.
GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum
OpenAI published a system card addendum for GPT-5.1 Instant and GPT-5.1 Thinking, providing updated safety metrics for both model variants. The addendum includes new evaluations specifically targeting mental health and emotional reliance risks. This follows the GPT-5 system card and extends safety documentation to the 5.1 generation of models.
GPT-5 System Card
OpenAI has published the system card for GPT-5, revealing a unified model routing architecture that dynamically selects among multiple sub-models: gpt-5-main, gpt-5-thinking, and lightweight variants such as gpt-5-thinking-nano. The routing system is designed to balance speed and capability depending on task requirements and deployment context. This document provides the first official safety and capability disclosure for the GPT-5 model family.
GPT-5.5: The System Card — Commentary
Zvi Mowshowitz's commentary on OpenAI's announcement of GPT-5.5 and GPT-5.5-Pro, analyzing the associated system card. The piece is a tier-2 analytical response to a major model release. Full content appears truncated, but the item covers the safety and capability disclosures accompanying the new model family.
GPT-5.3 Instant System Card
OpenAI has published the system card for GPT-5.3 Instant, a new model in the GPT-5 family. The system card documents safety evaluations, capability assessments, and deployment considerations for this release. As a tier-1 source announcement with minimal body content, specific technical details are not available from this item alone.
OpenAI GPT-4.5 System Card
OpenAI has released a research preview of GPT-4.5, described as their largest and most knowledgeable model to date. The system card accompanies the model release, providing safety evaluations and capability documentation. This represents a significant step in OpenAI's model scaling trajectory between GPT-4 and any future GPT-5 release.
GPT-4o System Card
OpenAI published the system card for GPT-4o, its flagship multimodal model. The document covers safety evaluations, capability assessments, and risk mitigations conducted prior to deployment. It provides transparency into the model's performance across modalities including text, audio, and vision, as well as alignment and red-teaming findings.