GPT-5.3 Chat (latest) deprecated

OpenAI has deprecated its GPT-5.3 Chat (latest) model, released on 2026-03-03, with no announced retirement date. The model, identified as gpt-5.3-chat-latest, supports text and image inputs with a 128k context window and 16k max output tokens. Developers using the model are advised to monitor its status via tools like llmstatus.ai to prepare for potential retirement.

OA◑ Deprecating GPT-5.3 Chat latest OpenAI · gpt-5.3-chat-latest Released2026-03-03 Retiresno announced date gpttext+image128k context16k max out also matches: gpt-5.3-chat-latest openai/gpt-5.3-chat-latest provider announcement → https://models.dev/openai/gpt-5.3-chat-latest Does your code call GPT-5.3 Chat latest ? $ curl -fsSL https://llmstatus.ai/install.sh | bash Then mm status in any repo — it finds every model you use and flags the ones on a clock. No account, nothing uploaded. Get alerted before it retires → /sign-up