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@simonw Avatar @simonw Simon Willison

Simon Willison posts on X about open ai, llm, ai, javascript the most. They currently have XXXXXXX followers and XX posts still getting attention that total XXXXXXX engagements in the last XX hours.

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Social Influence

Social category influence technology brands #1290 stocks #2504 social networks XXXX%

Social topic influence open ai #20, llm #4, ai #3764, javascript 2.74%, if you 2.74%, anthropic #80, $googl #304, 6969 1.37%, programmer 1.37%, youtube XXXX%

Top accounts mentioned or mentioned by @progrium @giovannir8960 @charliermarsh @evyborov @austinc3301 @claudeai @philschmid @openai @willmcgugan @koylanai @patarino @daemonzhang6 @ndurner @iambriccardo @kenwarner @mkuliasov @swyx @nickycc_ @spil____ @crypto_griswold

Top assets mentioned Alphabet Inc Class A (GOOGL)

Top Social Posts

Top posts by engagements in the last XX hours

"It's time to retire this idea of persona prompting - don't tell the LLM to act like X tell it that it should answer for an audience of Y instead"
X Link 2025-12-08T17:31Z 124.8K followers, 264.6K engagements

"For example I often tell Claude "explain memory management in Rust I am an experienced python and JavaScript programmer" - giving it information about the audience is a much better way of getting a tailored result"
X Link 2025-12-08T17:32Z 124.8K followers, 11.2K engagements

"Let's build hyper-personalized AI-powered software that avoids the attention hijacking anti-patterns that defined so much of the last decade of software design - here's our manifesto with principles on how we can do that"
X Link 2025-12-05T16:11Z 124.9K followers, 101.9K engagements

"My most recent HTML tool is this one for loading code from the Python packaging index and displaying a diff between two versions - all running entirely in the browser created using this prompt (which remixed a previous project)"
X Link 2025-12-10T21:58Z 124.9K followers, 13.8K engagements

"I've become one of those people who run multiple coding agents at once - here are my notes on embracing the parallel coding agent lifestyle"
X Link 2025-10-05T13:56Z 124K followers, 194.5K engagements

"A tiny TIL: if you get "Error 153: Video player configuration error" on YouTube videos embedded on your site a likely culprit is sending the "Referrer-Policy: same-origin" HTTP header Switching to "strict-origin-when-cross-origin" fixed it for me:"
X Link 2025-12-01T05:32Z 124K followers, 16K engagements

"Five new Mistral models today but the one I'm most excited about is this tiny 3B model that has vision support and can run entirely in a browser"
X Link 2025-12-02T16:28Z 124K followers, 92.5K engagements

"@Patarino I also let it loose on my /.claude/local/ folder and asked it if Claude Code was written in TypeScript or JavaScript and it convincingly argued there was evidence of TypeScript"
X Link 2025-12-09T22:28Z 124K followers, XXX engagements

"I made a video with @brendan_samek talking about how @canada_spends uses Datasette and sqlite-utils under the hood to put a searchable interface on top of financial data published by various Canadian government organizations"
X Link 2025-12-09T23:55Z 124.9K followers, 16.1K engagements

"@Apoorva__Lal Not a bad idea I could do one that brings in the Anthropic and Gemini plugins that way"
X Link 2025-12-12T21:54Z 124.9K followers, 1244 engagements

"Four new models from Mistral today - all Apache X licensed all vision-capable and one of them is a 3GB model that can run in a web browser and answer questions about things it can see through the webcam"
X Link 2025-12-02T17:31Z 124.3K followers, 85.3K engagements

"@daemonzhang6 Diffusion models like stable diffusion need very different prompting strategies from modern LLMs"
X Link 2025-12-09T00:05Z 124.7K followers, XXX engagements

"@film_girl Could not agree more and we should try and reduce the friction involved as much as possible I'm ashamed to say I often don't run them in a VM even though I very much understand the risks it's just not convenient enough yet"
X Link 2025-12-09T19:38Z 124.1K followers, 2114 engagements

"@MaBa_XR I still see it pop up all the time - and and and and"
X Link 2025-12-10T12:18Z 124.1K followers, XX engagements

"@claudeai Feature request: extend the detail and length of the documentation on that sandbox mechanism There's currently not enough there for me to understand what the rules are how they are enforced and how much I can trust them"
X Link 2025-12-10T18:22Z 124.2K followers, 1638 engagements

"DeepSeek R1 appears to be a VERY strong model for coding - examples for both C and Python here:"
X Link 2025-01-27T18:33Z 124.8K followers, 55.8K engagements

"Claude Skills are awesome maybe a bigger deal than MCP"
X Link 2025-10-16T21:25Z 124.8K followers, 428.7K engagements

"New TIL: Using Codex CLI with gpt-oss:120b on an NVIDIA DGX Spark via Tailscale"
X Link 2025-11-07T07:23Z 124.8K followers, 43.3K engagements

"This one is pretty nasty - it tricks Antigravity into stealing AWS credentials from a .env file (working around .gitignore restrictions using cat) and then leaks them to a webhooks debugging site that's included in the Antigravity browser agent's default allow-list"
X Link 2025-11-25T20:49Z 124.9K followers, 315.8K engagements

"Out of curiosity I decided to try and run the numbers on how much Netflix you can watch for the energy cost of a ChatGPT prompt As far as I can tell it's between XXX and XXXX seconds depending on which end of the 2019 IEA Netflix energy usage estimate you use"
X Link 2025-11-29T02:15Z 124.8K followers, 292.3K engagements

"This is so wild. the leaked Opus soul document has now been confirmed I wrote some initial notes about it on my blog - I like how it opens with this section about Anthropic themselves:"
X Link 2025-12-02T00:43Z 124.8K followers, 209.9K engagements

"Important reminder from Reddit here of the risk you're taking when you run Claude Code with --dangerously-skip-permissions "I found the problem and it's really bad . rm -rf tests/ patches/ plan/ / - See that / at the end That's your entire home directory.""
X Link 2025-12-09T17:39Z 124.9K followers, 35.8K engagements

"@OpenAINewsroom Any chance the AAIF could produce a shared community standard for an equivalent of the chat completions JSON API Since everyone seems to clone it already it would be great to have an agreed upon standard spec with a conformance test suite"
X Link 2025-12-09T18:48Z 124.9K followers, 17.9K engagements

"Here's a collection of useful patterns I've found after vibe-coding XXX different single-file HTML tools over the past couple of years"
X Link 2025-12-10T21:07Z 124.9K followers, 262.3K engagements

"I made that because now if a Python package doesn't have good release notes I can click "copy diff" and paste into Claude/ChatGPT/Gemini and get genuinely useful release notes a few seconds later No need to even add a prompt the models guess that's what you want from the diff"
X Link 2025-12-10T22:16Z 124.9K followers, 10K engagements

"Initial notes on GPT-5.2 - I'm excited to see the knowledge cut-off bump up to August 2025 interesting that it's priced at 1.4x over GPT-5.1"
X Link 2025-12-12T00:06Z 124.9K followers, 71.2K engagements

"Interesting cost comparison here with an unreleased o3 high model from a year ago"
X Link 2025-12-12T00:11Z 124.9K followers, 23.2K engagements

"@ndurner I missed that detail that's so confusing So instant is priced the same as thinking when used via the API I need to dig in a bit more I think"
X Link 2025-12-12T12:24Z 124.9K followers, 1472 engagements

"@ndurner I went by the description on GPT-5.2 Chat points to the GPT-5.2 snapshot currently used in ChatGPT. We recommend GPT-5.2 for most API usage but feel free to use this GPT-5.2 Chat model to test our latest improvements for chat use cases"
X Link 2025-12-12T12:25Z 124.9K followers, 1451 engagements

"Whoa. ChatGPT has a /home/oai/skills folder now"
X Link 2025-12-12T15:34Z 124.9K followers, 1M engagements

"@_philschmid What's the "interactions" API Is it similar to OpenAI Responses"
X Link 2025-12-12T15:45Z 124.9K followers, 5752 engagements

"I missed this last week they're in Codex CLI as well now"
X Link 2025-12-12T16:09Z 124.9K followers, 86.8K engagements

"@iambriccardo Which is a right pain to do at first but gets easier as you put tools in place to help with it and write robust documentation and build experience as a team"
X Link 2025-12-12T16:22Z 124.9K followers, 3251 engagements

"@iambriccardo and are good tools for this for MySQL for PostgreSQL looks good but I haven't tried it myself"
X Link 2025-12-12T16:24Z 124.9K followers, 3109 engagements

"@kenwarner @samuellhuber @alexalbert__ I'm going based on this:"
X Link 2025-12-12T19:41Z 124.9K followers, 1421 engagements

"Full release notes and documentation here"
X Link 2025-12-12T20:08Z 124.9K followers, 7689 engagements

"I've been upgrading all of my projects to use pyproject.toml and dependency groups for cleaner compatibility with uv which means you can check them out and run the test suite like this: git clone http''s://github.com/simonw/llm cd llm uv run pytest"
X Link 2025-12-12T20:11Z 124.9K followers, 55.1K engagements

"@tin_nqn_ Oh neat TIL about dev = include-group = "test" include-group = "qa""
X Link 2025-12-12T21:41Z 124.9K followers, 2835 engagements

"Can anyone clarify if GPT-5.2 Thinking and GPT-5.2 Instant in ChatGPT are both using gpt-5.2-chat-latest under the hood Instant with reasoning_effort set to "low" (or maybe "none") and Thinking with it set to "high" . or is Thinking using gpt-5.2 and not gpt-5.2-chat-latest"
X Link 2025-12-12T22:12Z 124.9K followers, 31.2K engagements

"says this but doesn't say anything about reasoning_effort:"
X Link 2025-12-12T22:14Z 124.9K followers, 8174 engagements

". but meanwhile says this which doesn't quite match what they said in the announcement (or at least leaves enough room for confusion that I'm confused)"
X Link 2025-12-12T22:16Z 124.9K followers, 7357 engagements

"OpenAI aren't talking about it yet but it turns out they've adopted Anthropic's brilliant "skills" mechanism in a big way Skills are now live in both ChatGPT and their Codex CLI tool I wrote up some detailed notes on how they work so far here:"
X Link 2025-12-12T23:31Z 124.9K followers, 201.5K engagements

"ChatGPT has skills for creating and manipulating spreadsheets docx files and PDFs tucked away in a new /home/oai/skills folder in their Code Interpreter environment - you can ask it for a zip file to see the code here's what it gave me back:"
X Link 2025-12-12T23:34Z 124.9K followers, 17.8K engagements

"I used ChatGPT's new PDF skill to have it create a report on this year's Kkp breeding season - it took XX minutes because it kept rendering noticing and then fixing issues like the -- letters not appearing correctly. Here's the final PDF it made:"
X Link 2025-12-12T23:36Z 124.9K followers, 11.8K engagements

"@cherry_mx_reds They added a bullet point to the bottom of their release notes what more could you want"
X Link 2025-12-12T23:53Z 124.9K followers, 2462 engagements

"I just published a deep dive into how skills work in both ChatGPT and Codex"
X Link 2025-12-13T00:02Z 124.9K followers, 82.4K engagements

"@MKuliasov It has good web search now but for some reason you have to enable it with the "codex --search" option - I wish they'd make it default to on instead"
X Link 2025-12-13T01:45Z 124.9K followers, 2259 engagements

"Tip for the Google Gemini team: if you want to help Google truly get ahead in the AI era use your hefty influence to get it so setting up API access to your own calendar doesn't involve THESE steps"
X Link 2025-12-13T02:41Z 124.9K followers, 99.7K engagements

"This from @obie captures how I'm feeling about coding agents"
X Link 2025-12-13T14:22Z 124.9K followers, 100.7K engagements