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Simon Willison’s Weblog: Agents are models using tools in a loop
Source URL: https://simonwillison.net/2025/May/22/tools-in-a-loop/#atom-everything Source: Simon Willison’s Weblog Title: Agents are models using tools in a loop Feedly Summary: I was going slightly spare at the fact that every talk at this Anthropic developer conference has used the word “agents" dozens of times, but nobody ever stopped to provide a useful definition. I’m now in the…
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Simon Willison’s Weblog: llm-anthropic 0.16
Source URL: https://simonwillison.net/2025/May/22/llm-anthropic-016/#atom-everything Source: Simon Willison’s Weblog Title: llm-anthropic 0.16 Feedly Summary: llm-anthropic 0.16 New release of my LLM plugin for Anthropic adding the new Claude 4 Opus and Sonnet models. You can see pelicans on bicycles generated using the new plugin at the bottom of my live blog covering the release. I also released…
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Simon Willison’s Weblog: Live blog: Claude 4 launch at Code with Claude
Source URL: https://simonwillison.net/2025/May/22/code-with-claude-live-blog/ Source: Simon Willison’s Weblog Title: Live blog: Claude 4 launch at Code with Claude Feedly Summary: I’m at Anthropic’s Code with Claude event, where they are launching Claude 4. I’ll be live blogging the keynote here. Tags: llm-release, liveblogging, anthropic, claude, generative-ai, ai, llms AI Summary and Description: Yes Summary: The text…
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Simon Willison’s Weblog: Devstral
Source URL: https://simonwillison.net/2025/May/21/devstral/#atom-everything Source: Simon Willison’s Weblog Title: Devstral Feedly Summary: Devstral New Apache 2.0 licensed LLM release from Mistral, this time specifically trained for code. Devstral achieves a score of 46.8% on SWE-Bench Verified, outperforming prior open-source SoTA models by more than 6% points. When evaluated under the same test scaffold (OpenHands, provided by…
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Simon Willison’s Weblog: Gemini Diffusion
Source URL: https://simonwillison.net/2025/May/21/gemini-diffusion/ Source: Simon Willison’s Weblog Title: Gemini Diffusion Feedly Summary: Gemini Diffusion Another of the announcements from Google I/O yesterday was Gemini Diffusion, Google’s first LLM to use diffusion (similar to image models like Imagen and Stable Diffusion) in place of transformers. Google describe it like this: Traditional autoregressive language models generate text…
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Simon Willison’s Weblog: I really don’t like ChatGPT’s new memory feature
Source URL: https://simonwillison.net/2025/May/21/chatgpt-new-memory/#atom-everything Source: Simon Willison’s Weblog Title: I really don’t like ChatGPT’s new memory feature Feedly Summary: Last month ChatGPT got a major upgrade. As far as I can tell the closest to an official announcement was this tweet from @OpenAI: Starting today [April 10th 2025], memory in ChatGPT can now reference all of…
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Simon Willison’s Weblog: We did the math on AI’s energy footprint. Here’s the story you haven’t heard.
Source URL: https://simonwillison.net/2025/May/20/ai-energy-footprint/#atom-everything Source: Simon Willison’s Weblog Title: We did the math on AI’s energy footprint. Here’s the story you haven’t heard. Feedly Summary: We did the math on AI’s energy footprint. Here’s the story you haven’t heard. James O’Donnell and Casey Crownhart try to pull together a detailed account of AI energy usage for…
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Simon Willison’s Weblog: Gemini 2.5: Our most intelligent models are getting even better
Source URL: https://simonwillison.net/2025/May/20/gemini-25/#atom-everything Source: Simon Willison’s Weblog Title: Gemini 2.5: Our most intelligent models are getting even better Feedly Summary: Gemini 2.5: Our most intelligent models are getting even better A bunch of new Gemini 2.5 announcements at Google I/O today. 2.5 Flash and 2.5 Pro are both getting audio output (previously previewed in Gemini…
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Simon Willison’s Weblog: Jules
Source URL: https://simonwillison.net/2025/May/19/jules/#atom-everything Source: Simon Willison’s Weblog Title: Jules Feedly Summary: Jules It seems like everyone is rolling out AI coding assistants that attach to your GitHub account and submit PRs for you right now. We had OpenAI Codex last week, today Microsoft announced GitHub Copilot coding agent (confusingly not the same thing as Copilot…
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Simon Willison’s Weblog: llm-pdf-to-images
Source URL: https://simonwillison.net/2025/May/18/llm-pdf-to-images/#atom-everything Source: Simon Willison’s Weblog Title: llm-pdf-to-images Feedly Summary: llm-pdf-to-images Inspired by my previous llm-video-frames plugin, I thought it would be neat to have a plugin for LLM that can take a PDF and turn that into an image-per-page so you can feed PDFs into models that support image inputs but don’t yet…