AI
RADAR
Beta
Drops
Issues
Tools
Landscape
Framework
← AI Radar
Codex
OpenAI's coding agent in ChatGPT.
Official site ↗
OpenAI News ↗
OpenAI Research index ↗
@OpenAI ↗
@OpenAIDevs ↗
Activity, last 6 months
by entry type
Drops this week
34
Drops this month
103
Mon
Wed
Fri
Dec
Jan
Feb
Mar
Apr
May
Jun
Less
More
Showing drops for
2026-04-23
×
Clear date
Compact view
Thursday, Apr 23, 2026
4 updates · Codex
▾
Codex
Introducing GPT-5.5
Product
Codex
GPT-5.5 System Card
Safety
Codex
GPT-5.5 Bio Bug Bounty
Safety