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GPT 5.3 Chat Family - Related Models & Variants | AI Stats

GPT 5.3 Chat

GPT 5.3 Chat

GPT 5.3 Chat

OpenAI

Overview Family Timeline Benchmarks Providers Quickstart Performance

GPT 5.3 family

4 models

We track 4 siblings across 1 provider. Launch window Feb 2026 - Mar 2026.

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OpenAI

OpenAI

GPT 5.3 Chat

OpenAI

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Let us know if a new sibling or updated release date is missing and we'll add it to the family tree.

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Family members

Dive into each sibling for pricing, benchmarks, and availability.

OpenAI

OpenAI

GPT 5.3 Chat OpenAI

Available

Viewing now

Release window

Mar 2026

Timeline

about 22 hours ago

OpenAI

OpenAI

Rumoured

Release window

Date TBC

Timeline

Awaiting confirmation

OpenAI

OpenAI

GPT 5.3 Codex Spark OpenAI

Available

Release window

Feb 2026

Timeline

20 days ago

OpenAI

OpenAI

GPT 5.3 Codex OpenAI

Available

Release window

Feb 2026

Timeline

27 days ago