OpenAI

OpenAI

59
releases

Everything OpenAI shipped in 54 days · Feb 2 – Mar 26, 2026

OpenAI
OpenAI
@OpenAI
OpenAI Devs
OpenAI Devs
@OpenAIDevs
Sam Altman
Sam Altman
@sama
Greg Brockman
Greg Brockman
@gdb
Romain Huet
Romain Huet
@romainhuet
Peter Welinder
Peter Welinder
@npew
Daniel Edrisian
Daniel Edrisian
@DanielEdrisian
Alex Embiricos
Alex Embiricos
@embirico
Michael Bolin
Michael Bolin
@bolinfest
Peter Steinberger
Peter Steinberger
@steipete
February 202625 releases
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
2
Codex App launch (macOS)
500K downloads day 1
Codex in GitHub AgentHQ
3
Codex in Xcode 26.3
Live workshop
4
Codex in VS Code
Agent HQ beta
5
GPT-5.3-Codex launch
New SOTA on SWE-bench
All paid plans
6
300M ChatGPT users
Codex hackathon recap
7
8
9
Codex in Cursor + GitHub
Ads test in ChatGPT
10
Deep Research → GPT-5.2
Export + follow-up Q
11
12
GPT-5.3-Codex-Spark
Cerebras partnership
NVIDIA ~30K engineers
13
14
15
@steipete joins OpenAI
Personal AI future
16
17
18
19
20
21
22
23
24
GPT-5.3-Codex in Responses API
All developers access
25
26
Code → Design → Code
Figma integration
27
28
March 202634 releases
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
2
3
GPT-5.3 Instant GA
Fewer refusals
Codex APAC hackathon
4
Codex for Windows
Native agent sandbox
5
GPT-5.4 launch
GPT-5.4 Thinking + Pro
Codex speed boost
6
Codex Security preview
Codex for OSS program
7
Codex Security → Pro
8
9
Acquiring Promptfoo
Evals + red-teaming
10
11
12
Automations now GA
GPT-5.4 #1 CursorBench
13
14
Codex goes global
Meetups in 20+ cities
15
16
Subagents in Codex
Codex × Notion
17
GPT-5.4 mini + nano
API + ChatGPT + Codex
3.3× Codex usage
18
OSS applications open
Community hub launch
19
Desktop global shortcut
India expansion
20
Codex for Students
$100 credits (US+CA)
21
Faster agent workflows
22
23
ChatGPT File Library
Plus / Pro / Business
24
25
Search in Codex app
Codex Creator Challenge
$10K API credits prize
26
27
28
29
30
31
@OpenAI · @OpenAIDevs · @sama · @gdb · @romainhuet · @npew · @DanielEdrisian · @embirico · @bolinfest · @steipete