The @github folks are amazing!
CODE
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GPT-5.5 Available via Codex API Backdoor for Image Generation
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GPT-5.5 may not be in the official OpenAI API… but it's available via the apparently approved-of Codex API backdoor So I used that to make these pelicans (default and xhigh)! https://
simonwillison.net/2026/Apr/23/gp
t-5-5/
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GPT-5.5 Builds Playable Three.js Game in One Shot
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This is the game GPT-5.5 built for me in one shot, featured on the release page.
— Pietro Schirano (@skirano) 23 avril 2026
What makes it different from previous AI-generated games is how fun it actually feels to play.
The controls are smooth, and every shape is generated from scratch in Three.js. pic.twitter.com/dMQE2JbZvzThis is the game GPT-5.5 built for me in one shot, featured on the release page. What makes it different from previous AI-generated games is how fun it actually feels to play. The controls are smooth, and every shape is generated from scratch in Three.js.
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OpenAI Rolls Out Codex to Enterprise Customers
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we're rolling codex out to whole companies/enterprises. ping me gdb@openai.com if of interest!
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New Drone Game Mode: Soldier to Drone Switching Mechanic
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Here is the new game mode for https://t.co/jtocKZvg8c
— @levelsio (@levelsio) 23 avril 2026
You start as a soldier but then you press F and you switch to one of the 3 drones in your backpack
It helps you attack places where you can't go easily yourself (like high roofs etc) to neutralize enemies
But of course you… https://t.co/ngFDlGcNRQ pic.twitter.com/8hc7PX0nNnHere is the new game mode for http://
drone.pieter.com You start as a soldier but then you press F and you switch to one of the 3 drones in your backpack It helps you attack places where you can't go easily yourself (like high roofs etc) to neutralize enemies But of course you -
NVIDIA Advances Codex and GPT-5.5 Development at HQ
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Codex + GPT-5.5 is moving fast here at NVIDIA HQ.
— NVIDIA AI (@NVIDIAAI) 23 avril 2026
We’ve even got our own Codex Lab for NVIDIANs to get started. https://t.co/PTqytJWp0f pic.twitter.com/zWnSnKfansCodex + GPT-5.5 is moving fast here at NVIDIA HQ. We’ve even got our own Codex Lab for NVIDIANs to get started.
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NVIDIA Codex rollout success across enterprise company
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We tried a new thing with NVIDIA to roll out Codex across a whole company and it was awesome to see it work. Let us know if you'd like to do it at your company!
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Drone Simulation Game Progress: Sound Editing and Soldier Integration
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✨ A lot of progress on my drone sim https://t.co/jtocKZvg8c today which has now evolved to a kind of soldier + drone sim (my entry to the #vibejam even though I can't win of course)
— @levelsio (@levelsio) 23 avril 2026
Today I changed the sounds from synth to real sounds, I edited a lot in Audacity to make these… https://t.co/ENd7U15y0S pic.twitter.com/oWFEaFjtjgA lot of progress on my drone sim http://
drone.pieter.com today which has now evolved to a kind of soldier + drone sim (my entry to the #vibejam even though I can't win of course) Today I changed the sounds from synth to real sounds, I edited a lot in Audacity to make these -
Replit Launches Startup Program Offering Up to $25K in Credits
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Replit for Startups is live. Up to $25K in credits to build your product, ship fast, and scale. If you're building on Replit, this is for you. http://
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GPT 5.5 Frontend Design Issues Persist Despite Updates
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En mi carta a Santa Claus puse que ojalá GPT 5.5 arreglara por fin el problema de diseño de frontends, pero claro… en Abril no viene Santa Claus.
— Carlos Santana (@DotCSV) 23 avril 2026
Noto ligeras mejoras pero ahí están, las cajas azules rodeándolo todo.https://t.co/BMoRdNcIxDIn my letter to Santa Claus, I wrote that I hoped GPT 5.5 would finally fix the frontend design problem, but of course… Santa Claus doesn't come in April. I notice slight improvements but there they are, the blue boxes surrounding everything.