model

GPT-5.3

modelactiveprovisionalgpt-5-3-6e66728f·2 events·first seen 2d ago

Aliases: GPT-5.3

Co-occurring entities

OpenAI Responses API ChatGPT Completions API

More like this (12)

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Recent events (2)

5Openai Release Notes·2d ago·source ↗

OpenAI releases gpt-5.3-chat-latest to Chat Completions and Responses API

OpenAI has made gpt-5.3-chat-latest available via the Chat Completions and Responses API, pointing to the GPT-5.3 Instant snapshot currently powering ChatGPT. This release gives API developers access to the same model version deployed in the consumer product. The update is a routine API availability expansion rather than a new model capability announcement.

Frontier Model Releases Inference Economics Responses API ChatGPT OpenAI +2 more

3Openai Release Notes·2d ago·source ↗

OpenAI updates gpt-5.3-chat-latest API slug to current ChatGPT model

OpenAI updated the gpt-5.3-chat-latest API alias to point to the latest model deployed in ChatGPT. This is a routing change for API consumers who rely on the versioned slug rather than pinned model identifiers. The update signals a model version bump within the GPT-5.3 series.

Frontier Model Releases OpenAI GPT-5.3