OpenAI
GPT APIs (ChatGPT Models)
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Frontier models
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Image
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Realtime & audio
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Open-weight models
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Embedding models
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More models
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ChatGPT models
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Current version
gpt-5.5
- Release date
- April 23, 2026
- Security status
- Security tracking is not enabled for this product yet.
Source
Public release notes are linked for the latest stored release.
Release history
See the latest published releases stored for this product.
| Version | Published | Notes |
|---|---|---|
| gpt-5.5 | 2026-04-23 | Release Notes |
Vulnerability tracking
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