o3 and o4-mini system card
o3-and-o4-mini-system-card-5cbade98·2 events·first seen 28d agoAliases: o3 and o4-mini system card
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OpenAI o3 and o4-mini System Card
OpenAI has published the system card for its o3 and o4-mini models, which combine advanced reasoning capabilities with a full suite of integrated tools including web browsing, Python execution, image and file analysis, image generation, canvas, automations, file search, and memory. The system card documents safety evaluations and deployment considerations for these frontier reasoning models. This represents a significant capability expansion over prior o-series models by natively integrating tool use alongside chain-of-thought reasoning.
OpenAI Publishes System Card Addendum for Codex Agent and codex-1 Model
OpenAI released an addendum to the o3 and o4-mini system cards covering Codex, a cloud-based coding agent powered by codex-1—a variant of o3 fine-tuned for software engineering via reinforcement learning on real-world coding tasks. codex-1 is designed to produce code matching human style and PR conventions, follow instructions precisely, and iterate on tests until they pass. The addendum provides safety and capability documentation for this specialized agentic deployment.