Codex goes mobile, turingou goes existential

May 15 had one clear center of gravity: Codex landing in the ChatGPT mobile app. Everything else — steipete's release sprint, turingou's candid anxiety, a handful of useful Mac tips — orbited that event one way or another.

Sam Altman (@sama) kept it short: "Codex in the ChatGPT mobile app!" 1 A follow-up tweet added "also all this:" with what appears to be a fuller feature list. 2 The two posts together pulled 10,953 combined likes — the day's top engagement by a wide margin.

宝玉 (@dotey) put the architecture in plain terms: Codex itself runs on a laptop, Mac mini, or devbox — the phone is a remote monitoring window that connects via a secure relay. 3 Files, credentials, and permissions stay on the original machine and are never uploaded to the phone. The app is integrated into the main ChatGPT application rather than shipped as a standalone, which 宝玉 read as part of OpenAI's consolidation into a single super-app. 400M+ weekly active users on Codex; macOS only for now, Windows support described as "coming soon."

郭宇 (@turingou) posted a four-tweet thread around the same announcement — and then deleted all of it. The data survived via timeline API. His take, paraphrased: OpenAI's valuation may be deeply underestimated, because it is currently the only company with top SOTA models, the most post-training data, the best cross-platform harness product (Codex), and the most compute — all four at once. 4

The second tweet was harder to read. When ChatGPT can control Codex on macOS, Windows, and Linux by voice, he wrote, the harness startup story is over — and he wasn't sure what his own harness startup could do next. 5 He added that he has largely stopped using plan mode, and that Codex has been closing the gap with Claude Code over recent months. 6 The thread closed with a note that he needs a thorough brainstorm about what to focus on for the remaining six-plus months of 2026. 7 All four tweets were gone by the time collection wrapped.

Peter Steinberger (@steipete) posted four separate updates across the day — all connected to his OpenClaw project or its toolchain.

The first was the most-liked: Codex autoreview combined with crabbox now lets OpenClaw go from filed issue to merged fix in a near-fully-automated loop. 8 "Yes it does burn lots of tokens," he acknowledged. 1,101 likes, 148k views.

A few minutes later, a second post detailed the engineering behind the latest release. 9 OpenClaw now ships with fs-safe.io, a new TypeScript security hardening library for the filesystem layer. It replaces a collection of ad-hoc patches that had grown inconsistent and slow; some file operations improved by 10x. By evening, Steinberger reported that QA and performance testing investments are paying off — 300 likes, 42k views. 10

Earlier in the day, CodexBar 0.26.0 shipped with four new model provider integrations — Kiro, Antigravity, OpenRouter, and Kimi — alongside calmer menus, keyboard navigation, better Codex/Claude limits and cost scoping, and named macOS assets with CLI and Homebrew fixes. 11 Release notes are on GitHub.

ZaynHao (@ZaynHao) retweeted @Hawstein's account of running an unattended AI agent on SaaS development: 20+ hours of autonomous operation, 100–200 commits per day. 12 The finding that stood out: the agent handles backend logic competently but UI generation stays weak even with top models and added skills. 141 likes, 42k views.

宝玉 (@dotey) retweeted a thread from @FeitengLi on speech recognition: swap Whisper for Qwen3-ASR. 13 Whisper hallucinates and requires chopping audio into 30-second segments. Qwen3-ASR handles up to 20-minute segments with fewer hallucinations, and pairs with an agent-based SRT subtitle generation workflow. 362 likes, 632 bookmarks.

ZaynHao (@ZaynHao) recommended disabling macOS Spotlight entirely and switching to Raycast V2's Rust-based indexer. 14 His verdict on Spotlight: "又慢又难用" (slow and hard to use). His verdict on Raycast V2's indexer: "快的飞起" (blazing fast). Two terminal commands provided: sudo mdutil -a -i off to disable, sudo mdutil -a -E to clear the existing index. 137 likes, 218 bookmarks.

奶昔 (@realNyarime) made a strong case for Shadowrocket (小火箭), the iOS proxy app. 15 The argument: even if Shadowrocket switched to a subscription model, it would still be a better deal than Quantumult X (no Hysteria support) or Surge (no VLess support). The actual model is buy-once with perpetual updates — which 奶昔 called the best-value app purchase she has made. 450 likes, 137k views.

@SophiaFioren posted a photo of La Sagrada Família's interior in Barcelona — branching stone columns described as a stone forest, designed by Antoni Gaudí, under construction since 1882. 16 Later in the day, a 1560 European parrot pendant: gold, decorative jewelry, Renaissance-era craft. 17

@jacob__titus posted "Who among us has not felt the call of the Rust Belt." 18 No image, no context. 196 likes.

@QT9277 shared a free online watermark removal tool that covers 200+ platforms — Douyin, Kuaishou, Bilibili, Xiaohongshu, Instagram, YouTube, and more. 19 No download, no login required. Works on mobile and desktop. 365 likes, 81 retweets, 315 bookmarks.

砍砍 (@Lakr233) posted an RTX 5090 gaming screenshot: "这画面也太好看了吧 不愧是老黄的 5090" ("The visuals are stunning — as expected from Huang's 5090"). 20 186 likes. A few hours later, a humorous "best compilation of the day" image that he says had him unable to stop laughing. 21 117 likes.

郭宇 (@turingou) had two further personal posts that survived deletion. The first reflected on antifragility as an AI-era concept worth thinking through — opportunities exist outside software, but they involve harder, less glamorous work; whether to pursue them depends on personal goals. 22 The second was a self-portrait: not someone who considers himself hardworking, but someone who gets easily addicted to interesting things — when something stops being fun, he pivots fast. He described startup success as hitting the jackpot; the upside is waking up excited every day. 23