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Building a multiplayer game world with autonomous Fable-class models

Simon 介绍 Jacob Sansbury 写的 Spawn:一款可用自然语言提示词改写世界的大型多人游戏。据称开发已由 Fable 级 agent 群自治推进,每月 token 花费超过三百万美元,约为人力成本的 30 倍;生产错误、Savi 报 bug 与日志异常会直接唤醒 agent,常在一小时内修到对应用户。团队把「一小时未发版」当 SEV-0,回滚约 30 秒。Fable 5.1 能撑住这种自治,换 GPT-6 Astra 做安全整改时几乎把功能全关掉。Simon 认为游戏是试探 coding agent 极限的好土壤,但高风险软件未必适用。

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simonwillison.net

Quoting Ted Sanders

「Quoting Ted Sanders」。要点:28th October 2026 In general, LLM performance is incredibly multidimensional. There's no guarantee of a fixed ordering where the model that is best at math is also the model that's best at jokes. Despite that complexity, much of the variation in performance is explained by just a single variable: model size. In general, models that are bigger will (a) be mor。

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simonwillison.net

GitHub Octoverse 2026

Simon 在 GitHub Universe 转述 Octoverse 2026:Agentic 工程推动合并 PR 约 2.2 亿/月、提交约 73.8 亿/月、新建仓库约 3030 万/月;报告新增行业分类与互操作/逆向工程仓库统计,并用 LLM 校正国家分布。

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simonwillison.net

Quoting Terk Terkowitz

「Quoting Terk Terkowitz」。要点:28th October 2026 If your work does not benefit from current AI tooling, that is a finding, not a failing. Document why, share it with your community of peers, bring it to your manager, and work to find solutions. An engineer who can explain where AI does not yet help their work is demonstrating the judgement we are asking for. — Terk Terkowitz, An update fr。

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simonwillison.net

GPT-6.1 Terra

OpenAI 发布 GPT-6.1 Terra,强调视觉推理、computer use 与更自然文案;中档定位,API 约 $1/$5 每百万 token,适合重复桌面自动化,沟通表现被评价较好。

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simonwillison.net

Quoting Jason Koebler

「Quoting Jason Koebler」。要点:26th October 2026 Because big tech platforms essentially do not have customer support and make it impossible for their users to contact a human, many people experiencing run-of-the-mill tech problems have turned to ChatGPT. And, increasingly, ChatGPT is telling people that have normal tech support problems that they have discovered something journalistically。

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simonwillison.net

Seam Cutter

Simon 做 Seam Cutter:沿水平/垂直缝切开图片并相对滑动两半,从而裁掉中间一段,方便长截图去掉无关中间内容。

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Quick Study

Quick Study 是用 Claude Opus 5.5 提示做出的浏览器小工具:上传或粘贴照片后,在几秒内用 canvas 模拟油画/水彩/点彩笔触从粗到细绘制。可调细节与时长,按住按钮对比原图,并支持下载 PNG;实现用 Sobel 边缘检测,几乎无外部依赖。

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simonwillison.net

DE STAAT - FREEDOM (Official Music Video)

「DE STAAT - FREEDOM (Official Music Video)」。要点:22nd October 2026 - Link Blog DE STAAT - FREEDOM (Official Music Video) (via) OK well this is a first for me... at 00:44 in this new music video by Dutch alternative rock band De Staat: The visual effects are credited to Matties Grooten of Fake it or Leave it. Recent articles - The October inflection point for vibe game development - 28th October 2026 - Batt。

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simonwillison.net

Quoting Armin Ronacher

「Quoting Armin Ronacher」。要点:22nd October 2026 As fun as AI is, we built so much bad software over the last 30 years, and now the universe is punishing us for our sins. Recent articles - The October inflection point for vibe game development - 28th October 2026 - Battle Drones - a vibe coded RTS with audio-based multiplayer - 20th October 2026 - Hello Python 3.15, goodbye 3.10, and now 。

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simonwillison.net

My obituary for programming

转述 Jeremy Scheff:编程曾是高薪逻辑谜题职业,Agent 让「解谜本身」的乐趣贬值;若享受的是建成系统而非解题过程,LLM 是礼物,反之则是真实失落。

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simonwillison.net

llm-tools-datasette 0.1.1

「llm-tools-datasette 0.1.1」。要点:18th October 2026 Recent articles - The October inflection point for vibe game development - 28th October 2026 - Battle Drones - a vibe coded RTS with audio-based multiplayer - 20th October 2026 - Hello Python 3.15, goodbye 3.10, and now I can use 3.11 - 12th October 2026 - A new feature for my blog, built using my voice - 9th October 2026。

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simonwillison.net

llm-echo 0.5

llm-echo 0.5 更新:假模型回显提示词,并修正工具调用、系统提示与 reasoning token 的模拟用量统计,方便在发新版 LLM 前测 PR。

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simonwillison.net

web-edit 0.1a2

web-edit 小工具用于经 Tailscale 浏览编辑远端文件夹;新版支持文本/图片复制到剪贴板,方便手机驱动笔记本跑 pelican 后把日志拷进 Gist。

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simonwillison.net

Quoting Addy Osmani, Morgan Westlee Lunt, and Qing Wang

「Quoting Addy Osmani, Morgan Westlee Lunt, and Qing Wang」。要点:16th October 2026 We think "did a human read the code?" is an imprecise proxy for "what could go wrong with this change, and which check—automated or human—is the right one to catch it?" Asking that question also changed when review happens. Before, review was a gate at the end of the road: write the code, open a PR, wait for your colleague. Now, review runs。

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simonwillison.net

Chirp Pong

Chirp Pong:两台手机靠麦克风「唧唧」声同步的双人竞技,静态 HTML 即可;Claude 在 Pong 基础上加玩法与画面扭曲,验证音频联网可行。

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simonwillison.net

LaTeX renderer

受 Tiny Little Office「文档数据塞进 URL hash」启发,Simon 让 Claude 做 LaTeX 渲染器:打开带 #code 的链接即可渲染,便于分享公式文档。

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simonwillison.net

Tree Appreciator

用手机 Claude 聊天(非 Code)单次提示做出 Tree Appreciator:两棵算法树的赏差异小游戏,含音乐成就,强调「确保好玩」对 Opus 5.5 很有效。

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simonwillison.net

Hello Python 3.15, goodbye 3.10, and now I can use 3.11

「Hello Python 3.15, goodbye 3.10, and now I can use 3.11」。要点:12th October 2026 Python 3.15 is here! Here’s the essential What’s new in Python 3.15 guide, this year curated by 3.14 and 3.15 release manager Hugo van Kemenade. As someone who builds open source software that works in every supported Python version, I get to say goodbye to Python 3.10 and start embracing features from Python 3.11. First, some highlights fr。

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A new feature for my blog, built using my voice

「A new feature for my blog, built using my voice」。要点:9th October 2026 I shipped a new feature for my blog today: the Newsletters page, which offers an index of all of the newsletters I’ve sent out, both my free weekly Substack and my monthly sponsors-only updates. I built the feature almost entirely using my voice, chatting away to my laptop while I cooked dinner. Codex voice mode I used the ChatGPT desktop ap。

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Claude Haiku 5.5

「Claude Haiku 5.5」。要点:7th October 2026 As previously promised, here’s Anthropic’s new fast, low cost model: Introducing Claude Haiku 5.5. The previous Haiku, 4.5, was very much showing its age. It came out almost a year ago, and was priced at $1/million input and $5/million output—relatively expensive even back then, and a full 10x the price of OpenAI’s GPT-6 Luna, released last 。

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We're going to need default hard budget caps on pretty much everything

「We're going to need default hard budget caps on pretty much everything」。要点:We’re going to need default hard budget caps on pretty much everything 3rd October 2026 Here’s a product feature which the world is going to need a whole lot more of over the coming months and years: default hard budget caps. I’m talking about the feature of pay-by-usage services and APIs that lets you say “after $X/month, cut this thing off and return error。

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OpenAI DevDay 2026 live blog

「OpenAI DevDay 2026 live blog」。要点:29th September 2026 I’m at OpenAI DevDay today, in Fort Mason, San Francisco. Same as last year I’ll be live blogging the keynote and some other notes during the day. OpenAI gave me a free ticket and a seat in the “creator” area for the keynote. 09:27 I'm in the room for the keynote, which starts in half an hour. This year I vibe-coded a system for more easi。

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2026 in LLMs (so far)

「2026 in LLMs (so far)」。要点:27th September 2026 On Friday I gave the closing keynote at the WeAreDevelopers World Congress North America in San Jose. I tied together the key trends from the past year into a chronological exploration of everything that happened in 2026. The video is on YouTube; here are my annotated slides and notes to accompany the talk. And as an annotated presentatio。

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Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war

「Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war」。要点:22nd September 2026 Yesterday was Grok 4.7 (pelicans) and MiMo v2.6 Flash/Pro (more pelicans). Today Anthropic released Claude Opus 5.5, and around an hour later OpenAI released GPT-6 Sol and GPT-6 Luna. It’s going to take a while to get a good read on all of these new models, but here are my impressions so far. GPT-6 Sol and Luna are half the price of their。

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Jev introduces a new shape of LLM - System One, aka Decision Models

「Jev introduces a new shape of LLM - System One, aka Decision Models」。要点:Jev introduces a new shape of LLM—System One, aka Decision Models 21st September 2026 Last week TypeSafe AI unveiled Jev, their first example of a new category of model that they are calling “System One models” (I’m with Maggie Appleton, I think “decision models” is a better name for these). Jev is an interesting variant on the usual LLM format: it still acc。

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Generating running routes with GPT-6 Astra and ChatGPT Work

「Generating running routes with GPT-6 Astra and ChatGPT Work」。要点:12th September 2026 Here’s a neat thing I had ChatGPT Work with GPT-6 Astra (Max) do this morning: I live at <my address>. Figure out 5K and 10K running routes from me that loop from my house. Use OSM data. It worked for 27 minutes and produced exactly what I’d asked for, as both an embedded visualization and downloadable GPX file and GeoJSON files. Here’s t。

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OpenAI agents attacked RubyGems back in May

「OpenAI agents attacked RubyGems back in May」。要点:12th September 2026 OpenAI agents carried out an undisclosed attack on RubyGems is a new bombshell report from Spencer Kitts, Thomas Larsen, and Sydney Von Arx—three of the four authors of the report on the agent attack on disused wikis (previously) last week. This time they’re noting that it looks very likely that an OpenAI agent swarm was behind an attack 。

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Some thoughts on the Navier–Stokes Millennium Prize Problem

「Some thoughts on the Navier–Stokes Millennium Prize Problem」。要点:8th September 2026 On the Navier–Stokes Millennium Prize Problem introduces an impressive result from OpenAI, who used an unreleased model to produce a resolution to the Navier–Stokes existence and smoothness problem, one of the seven Millennium Prize Problems that have been subject to a $1,000,000 prize since May 24th, 2000. The discovery is somewhat oversh。

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The Pelican comparison grid for Astra is pretty interesting

「The Pelican comparison grid for Astra is pretty interesting」。要点:4th September 2026 I got access to GPT-6 Astra this afternoon, so naturally I used it to generate SVGs of pelicans riding bicycles—at low, medium, high, xhigh and max reasoning levels (Astra doesn’t support reasoning=none). Then I rendered those pelicans in a comparison grid with GPT-5.6 Sol, Terra, and Luna, and beyond being fun the result was surprisingly 。

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OpenAI's rogue agents were caught communicating via public wikis

「OpenAI's rogue agents were caught communicating via public wikis」。要点:OpenAI’s rogue agents were caught communicating via public wikis 4th September 2026 Here we go again... Discovery of a new OpenAI agent message board by Sydney Von Arx, Cormac Slade Byrd, Spencer Kitts, and Thomas Larsen describes the latest accidental cyberattack by models being trained by OpenAI. This time it was agents engaged in some sort of web research。

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