NinjaCodex compared AI models building the same 3D harbor game: Gemini 4 Argon for $0.46 vs Claude Opus 5.5 for $16.40. Opus added more detail and prettier water, but Argon still got a working harbor running. Credit: @N1njaCodex

LuminaBench compared one voxel pagoda scene across Gemini 4 Argon, Gemini 4 Carbon, Opus 5.5 and Sonnet 5.5. It says Carbon is noticeably higher quality than Argon but 2-4x slower. Credit: @LuminaBench

If you deploy on Railway: rotate every API key and database password you store there. Railway disclosed that an attacker may have read some customers' environment variables. Don't wait for their email. What I saw: my OpenRouter keys stored on Railway were switched off. If your app suddenly gets 401 "User not found" from OpenRouter, that's likely why. A new key with a spend limit fixes it. Quick checklist: - Start with keys that can spend money: OpenRouter, OpenAI, Anthropic, Stripe - New keys, each with a spend limit; auto top-up off - Check usage at those providers for calls you didn't make - Rotate database passwords and GitHub tokens - If builds are still paused, swaps that need a redeploy wait until they're back

Anpei Chen says coding agents like Codex can already handle much of real-to-sim, but 3D vision isn't solved. Plumb is an early exploration that recovers physics from video, shown on a Newton's cradle. Credit: @AnpeiC

Frog King Simulator says this game was made entirely with Opus 5.5 and three.js, after a month of working without leaving the Claude terminal. Credit: @Belbizaz

Blender is working on a native Android version: the team showed the project at its BCON26 conference, where you can orbit the viewport on a tablet, and a demo APK is available. Credit: @Blender

Binkg says Gemini 4 Carbon made this 3D cola bottle as an SVG-style render, in the Arena with only about 5 minutes of generation. Credit: @dummerspast39

Bee says Gemini 4 made this mechanical flower fully in three.js in about 1 hour 43 minutes, and even added a small bee that wasn't in the prompt. Credit: @thtbee_

Flight 15 of Starship could attempt the first double catch, with both the ship and the booster caught, per Everyday Astronaut. It would be an orbital mission again. Credit: @Erdayastronaut

Leon Lin says Opus 5.5 made this paper-cut fox film, all in JavaScript with no assets used. Credit: @LexnLin

Waymo says riders in Las Vegas now have airport access, with more riders to be welcomed in the coming weeks. Credit: @Waymo

Lucy Cai says she and a collaborator gave GPT-6 Astra a robot arm named Podrick and a kitchen to see if it can host a dinner party. First task: garnishing each cup of water with a lemon slice. Credit: @lucyjcai

Qiayuan Liao says SuperMimic scales humanoid motion control with over 1000x fewer GPU-hours: surpassing the state of the art (128 GPUs, 7 days) across 129,514 motions with 1 GPU in 3 hours. Credit: @qiayuanliao

Google says it fed raw LiDAR scans and archives of Chaco Canyon to Gemini 4 Argon, using Blender MCP to build an explorable 3D model of the 1,000-year-old ruins. Credit: @Google

Salio shares a 3D castle scene he says was generated by Gemini 4 Carbon, and calls the 3D generation quality very strong. Early demo, worth a look. Credit: @Mr_Salio

Rocket Lab says it has rotated the Neutron Stage 2 tank assembly horizontal, a key step in handling large rocket sections for integration. The stage is next to ship to LC-3. Credit: @RocketLab

GitHub Next says PDD Kit, from Microsoft Research, turns your plan into a formal spec, then proves the agent's code meets that spec for every input. Aimed at verifying AI-written code. Credit: @GitHubNext

Anthropic says Claude Duet, now a research preview, is a proactive agent app. It surfaces what needs your attention, works while you're away, and checks with you before acting on your behalf. Credit: @claudeai

Google DeepMind says Gemini 4 Argon combined three open-source datasets into an interactive 3D model of human anatomy. Toggle layers in motion, isolate muscles, or zoom inside a beating heart. Credit: @GoogleDeepMind

Meng To says he made an open-source skill that turns your app into an HTML demo: sharp at any size, loops, scrubs to any step, and respects reduced motion. Built for coding agents. Credit: @MengTo

A year after building her companion robot Jiji, Summer Roh says version 2 starts today, with a new brain on an NVIDIA Jetson Orin Nano. Solo hardware build. Credit: @summerrexe