Model · Multimodal language model

GPT-5.2

The previous GPT-5 flagship generation for professional work with configurable reasoning effort, exposed as the gpt-5.2 alias over the gpt-5.2-2025-12-11 snapshot through OpenAI's managed developer API and Azure Foundry, without downloadable model weights.

Developer: OpenAI
Distribution: Developer API · Third-party hosting
Artifact licensing: Proprietary access
License scope: Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
Licenses: OpenAI Services Agreement
Boundary: This record represents the GPT-5.2 release whose API page identifies gpt-5.2-2025-12-11 as the fixed snapshot behind the gpt-5.2 alias; the API deprecation page carries no retirement entry for this base line as of review, while its chat-latest and codex variant endpoints shut down in July and August 2026. ChatGPT, the retired 5.2 chat and codex variants, later GPT releases including GPT-6 Astra, fine-tuned derivatives, and the OpenAI API platform itself are separate service, application, or model boundaries.

Risk statements

“High capability” · Precautionary

We are treating this launch as High capability in the Biological and Chemical domain, activating the associated Preparedness safeguards. We do not have definitive evidence that these models could meaningfully help a novice to create severe biological harm, our defined threshold for High capability, and these models remain on the cusp of being able to reach this capability.

Risk areas: Biological or chemical
Covers: The model itself

Read the developer's statement ↗ · 2026-10-09 · Research confidence: Medium

OpenAI names this release against “High capability” in biological or chemical capability, as a precaution. The statement covers the model itself. This is the developer's own statement, not an Atlas risk rating.

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