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#openai-codex

@ScarletKc: The most entertaining ongoing saga in Silicon Valley's AI scene just reached its Day 28 finale. Quick recap: on one side, there's Tibo from OpenAI, who heads Codex and the personal agent Dot. Because he has a habit of resetting users' quotas at the slightest provocation, the community jokingly dubbed the company Reset Company (later renamed Token Company). He launched a 28-day challenge in early October: every day, he'd either ship a new feature or reset everyone's quota. On the other side is Lauren (aka poteto), a former core member of Meta's React compiler team, now at SpaceXSI. Known for her extremely rigorous agent engineering workflow and merging over a thousand PRs a month, she calls herself Ship Company (building rockets and shipping releases at high frequency). The two have been trading intense jabs and playful provocations on X for over a hundred rounds, to the point where some netizens built three dedicated websites to track their interactions in real time. Just a few days ago, Tibo got into a spat with Meta's Alexandr Wang over their respective Dot and Meta's Muse, and then turned around and bought http://poteto.com, pulling off a massive stunt that garnered 3 million views. At the time, poteto quipped that she couldn't afford http://tibo.com, then quietly dropped a Day 28 teaser. Today, on Day 28, she spent $5.99 to buy the domain http://tibo.dog and built an incredibly polished Vampire Survivors-style web game using Grok Bot and Cursor, so complete that it can even be launched and played directly inside an X tweet card. The most amazing part? The game was started four days ago, with the premise of Tibo surviving a screen full of monster swarms with a pack of dogs. And just hours before the game's release, Tibo happened to tweet about how his phone's autocorrect kept changing his own agent Dot to dog, leaving him with a bunch of hilarious messages like "I love my dog so much, yesterday it even helped me book a haircut." The two sides coincidentally collided at exactly the right moment, and the comedic effect was off the charts. Beyond that, the game turns quota resets into a core mechanic, and sneakily worked in Meta's Muse and Alexandr Wang memes as Easter eggs. What seemed like just another meme game turned out, based on the technical retrospective she posted, to be a textbook example of AI-assisted engineering practice: The entire project was kicked off in her spare time four days ago. Over those four days, agents submitted and merged approximately 1,150 PRs. The core of her workflow: every time she spotted an issue in the code, instead of fixing it herself, she had the Bot write a lint rule targeting that problem. She even banned writing comments outright via lint rules — if a piece of code needed explaining, the only acceptable fixes were a better variable name or an additional test. To prevent the game from stuttering, she encoded context directly into file paths. All hot-path code that runs every frame or tick is in files with a .hot.ts extension, paired with dedicated lint rules forbidding memory allocations in these files — no object literals, closures, or new. This means the main loop produces almost zero garbage collection pressure, eliminating GC-induced frame drops at the source. The state machine portion heavily uses TLA+ for formal verification, with dedicated formal verification skills for the storyline, cutscenes, and core systems to hunt down bugs. Beyond using three.js to render the 3D scenes, she hand-wrote the physics simulation, post-processing, and audio engine. And the entire simulation layer is fully deterministic — every playthrough can be precisely replayed from its input sequence. When you upload a high score, the server replays your entire run to verify there was no cheating. Even more extreme: the project contains no external audio or image asset files whatsoever. All pixel art is generated purely in code and automatically packed into sprite sheets at build time. All music and sound effects are synthesized in real time in the browser — a Game Boy-style chip synthesizer plus a synthwave layer, all written in code. Even the sheet music is plain text in the source code, and melodies seamlessly transition when switching maps. To ensure it fits and runs inside X's tweet card, the build pipeline enforces strict size budgets: the first bundle is only 124 KB after gzip, and exceeding the limit causes the build to fail outright. On mid-range phones, it maintains a solid 60 FPS with 500 enemies on screen, supports localization in 10 languages, and dynamically generates share images for results screens. Even the difficulty curves were tuned through headless Bot simulations targeting specific survival rates. Using the most hardcore formal verification, zero-memory-allocation constraints, and a deterministic engine to build a $5.99-domain meme game — this is probably the most authentic day-to-day reality of top engineers using coding agents well. Generating code is no longer impressive; the real differentiator is how you use compiler thinking, lint rules, and automated verification to keep agents firmly in line.

X AI KOLs Timeline ↗ · 2026-11-02 Cached

Lauren (poteto) 为结束与 OpenAI 的 Tibo 的 28 天互怼挑战,用 Grok Bot 和 Cursor 花 4 天开发了一个可嵌入 X 推文卡片的类吸血鬼幸存者网页游戏,技术复盘展示了 1150 个 Agent PR、TLA+ 形式化验证、零内存分配 lint 约束和确定性引擎等硬核 AI 辅助工程实践。

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#openai-codex

@akitabtc: From the perspective of coding agent product line delivery, OpenAI has now been left two lengths behind by Anthropic. A…

X AI KOLs Following ↗ · 2026-10-09

从编程智能体产品线交付的角度评论认为,Anthropic 已领先 OpenAI 两个身位,OpenAI Codex 经过数月迭代后用户体验变得过度防御、过度思考和过度工程化。

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#openai-codex

@QuixiAI: I've been working on writing my compiler since February. I've tried very hard to build it with OpenAI Codex, but it jus…

X AI KOLs Timeline ↗ · 2026-09-27 Cached

The author shares their experience of struggling to build a compiler with OpenAI Codex but finding success with Claude AI.

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#openai-codex

Analyzing Frontier Model Progress with My Favourite Game: Prince of Persia

Hacker News Top ↗ · 2026-09-25 Cached

An experiment where the author used various AI models like Claude and Codex to port the game Prince of Persia from Apple II assembly to C#, demonstrating the progress in frontier models for code generation.

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#openai-codex

@corbin_braun: WE ARE BACK YOUTUBE TIME

X AI KOLs Timeline ↗ · 2026-09-12 Cached

A tweet announces that Cursor's new update surpasses OpenAI Codex and Claude Code by solving context decay, urging viewers to watch for more details.

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#openai-codex

@dotey: This episode of the podcast is an interview by The Pragmatic Engineer with Thibault (Tibo), the head of the OpenAI Code…

X AI KOLs Timeline ↗ · 2026-09-11 Cached

An interview with Thibault, head of OpenAI's Codex team, discussing Codex's development, the choice of Rust for its core, open-source strategy, and shifts in engineering practices at OpenAI.

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#openai-codex

How a researcher uses Codex and ChatGPT to search for new antimicrobial molecules

OpenAI Blog ↗ · 2026-09-10 Cached

A researcher uses OpenAI's Codex and ChatGPT to accelerate the discovery of new antimicrobial molecules by treating biology as information and leveraging AI to search vast datasets for functional patterns.

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#openai-codex

How GPT-5.6 Sol helps run quantum computing experiments

OpenAI Blog ↗ · 2026-09-08 Cached

The article describes how MIT graduate student Beatriz Yankelevich used GPT-5.6 Sol with Codex to automate quantum computing experiments, saving time and enabling more focus on analysis and design.

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#openai-codex

@sairahul1: How to use Claude Code all day without hitting limits. This setup saves at least 60% of your Claude token consumption —…

X AI KOLs Timeline ↗ · 2026-08-21 Cached

This guide provides a step-by-step method to use Claude Code with the OpenAI Codex plugin and a 3-model workflow involving GPT-5.6 variants to reduce token consumption by at least 60% and avoid usage limits.

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#openai-codex

Asana cleared 5 years of engineering work in 2 weeks with Codex

OpenAI Blog ↗ · 2026-08-18 Cached

Asana used OpenAI Codex to remove the outdated Enzyme testing system in two weeks, completing a task estimated to take five years and saving approximately $6 million in costs.

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#openai-codex

@GitHub_Daily: AI guru Karpathy previously built an autoresearch script that lets the model automatically run hundreds of rounds of experimental tuning overnight. The Autoresearch open-source project brings the same approach to Claude Code and Codex. Give it a goal and quantifiable metrics, …

X AI KOLs Timeline ↗ · 2026-08-01 Cached

The Autoresearch open-source project ports Karpathy's autoresearch approach to Claude Code, OpenCode, and Codex, letting AI agents automatically loop through code changes, run validation, and roll back based on goals and quantitative metrics. It provides 14 subcommands and 9 safety hooks.

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#openai-codex

Existing Codex session kept progressing for 17 hours after usage reached zero — reproduced twice

Reddit r/AI_Agents ↗ · 2026-07-30

A user reports reproducing a Codex Desktop behavior where existing sessions continue processing for up to 17 hours after usage limits hit zero, raising questions about how in-flight tasks are governed.

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#openai-codex

@Cognizant: Every technology wave reshapes what expertise looks like. AI is no different. As frontier AI becomes more capable, the …

X AI KOLs Timeline ↗ · 2026-07-30 Cached

Cognizant hosted its first-ever OpenAI Codex Hackathon with 10,000 associates across six Indian cities, aiming to build AI fluency and translate skills into enterprise solutions.

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#openai-codex

This may be controversial, but hear me out… OpenClaw is dying if it’s not already dead…

Reddit r/openclaw ↗ · 2026-07-14

The article argues that OpenClaw, an open-source AI coding agent, is declining or dead, pointing to its creator Peter Steinberger's move to OpenAI, and the rapid development of competing tools like Anthropic's Claude Code and OpenAI's Codex.

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#openai-codex

I open-sourced Aletheia - an agent loop for investigating questions without a clear verifier.

Reddit r/AI_Agents ↗ · 2026-07-05

Aletheia is an open-source agent loop designed for investigating questions where answers cannot be easily verified, such as vendor credibility or financial health. It maintains an explicit belief state, chooses searches to maximize information gain, and can stop without forcing a conclusion when evidence is insufficient.

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#openai-codex

Do You Think AI Workflows Will Be Bigger Than Chatbots?

Reddit r/ArtificialInteligence ↗ · 2026-06-29

A new paper on OpenAI Codex reveals agentic AI usage grew over fivefold in the first half of 2026, with adoption expanding beyond software developers, indicating AI workflows may surpass chatbots.

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#openai-codex

@shmidtqq: https://x.com/shmidtqq/status/2068704187492221405

X AI KOLs Timeline ↗ · 2026-06-21 Cached

An in-depth guide to loop engineering for AI coding agents, explaining how to build automated loops that repeatedly prompt agents, verify results, and avoid runaway costs, illustrated with a case study of one engineer shipping 259 PRs in a month.

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#openai-codex

@php_martin: OpenAI Codex is now free. But what really shocked me isn't the free part — it's that local open-source models can deliver AI Agent performance close to the cloud experience. The video demonstrates 4 real-world scenarios: fixing a crashed space game, building a Whac-A-Mole web game in minutes, generating an Apple-style product homepage, and even launching a browser to search, download, and save files on its own.

X AI KOLs Timeline ↗ · 2026-06-16 Cached

OpenAI Codex is now free, but even more surprising is that local open-source models can achieve AI Agent performance close to the cloud, demonstrating scenarios like fixing games and developing web games without requiring API keys or internet.

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#openai-codex

@seclink: Vercel Launches HarnessAgent to Easily Switch AI Frameworks: On June 12, Vercel released HarnessAgent in the Canary version of AI SDK 7. This tool provides a unified API supporting switching among Anthr…

X AI KOLs Following ↗ · 2026-06-13

Vercel released HarnessAgent in the Canary version of AI SDK 7, providing a unified API to switch between multiple AI agent runtime environments, simplifying development workflow.

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#openai-codex

@GoSailGlobal: The Big Three Most Worth Watching for Agent Development Trends: OpenAI Codex, Claude Code, Manus – compiled all core team members, now a summary. OpenAI Codex (13 people): Leadership @romainhuet @thsott…

X AI KOLs Timeline ↗ · 2026-06-13 Cached

A comprehensive list of core team members from three AI Agent development teams – OpenAI Codex, Claude Code, and Manus – covering leadership, API, ecosystem, security, and more, for readers interested in Agent development trends.

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