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Simon Willison’s Weblog: OpenAI o3 and o4-mini System Card

Apr 21, 2025

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Source URL: https://simonwillison.net/2025/Apr/21/openai-o3-and-o4-mini-system-card/ Source: Simon Willison’s Weblog Title: OpenAI o3 and o4-mini System Card Feedly Summary: OpenAI o3 and o4-mini System Card I’m surprised to see a combined System Card for o3 and o4-mini in the same document – I’d expect to see these covered separately. The opening paragraph calls out the most interesting new…

Simon Willison’s Weblog: AI assisted search-based research actually works now

Apr 21, 2025

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Kurt Seifried

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Source URL: https://simonwillison.net/2025/Apr/21/ai-assisted-search/#atom-everything Source: Simon Willison’s Weblog Title: AI assisted search-based research actually works now Feedly Summary: For the past two and a half years the feature I’ve most wanted from LLMs is the ability to take on search-based research tasks on my behalf. We saw the first glimpses of this back in early 2023,…

The Register: Everything you need to get up and running with MCP – Anthropic’s USB-C for AI

Apr 21, 2025

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Kurt Seifried

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Source URL: https://www.theregister.com/2025/04/21/mcp_guide/ Source: The Register Title: Everything you need to get up and running with MCP – Anthropic’s USB-C for AI Feedly Summary: Wrangling your data into LLMs just got easier, though it’s not all sunshine and rainbows Hands On Getting large language models to actually do something useful usually means wiring them up…

Simon Willison’s Weblog: Note on 20th April 2025

Apr 20, 2025

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Kurt Seifried

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Source URL: https://simonwillison.net/2025/Apr/20/janky-license/#atom-everything Source: Simon Willison’s Weblog Title: Note on 20th April 2025 Feedly Summary: Now that Llama has very real competition in open weight models (Gemma 3, latest Mistrals, DeepSeek, Qwen) I think their janky license is becoming much more of a liability for them. It’s just limiting enough that it could be the…

Simon Willison’s Weblog: llm-fragments-github 0.2

Apr 20, 2025

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Kurt Seifried

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Source URL: https://simonwillison.net/2025/Apr/20/llm-fragments-github/#atom-everything Source: Simon Willison’s Weblog Title: llm-fragments-github 0.2 Feedly Summary: llm-fragments-github 0.2 I upgraded my llm-fragments-github plugin to add a new fragment type called issue. It lets you pull the entire content of a GitHub issue thread into your prompt as a concatenated Markdown file. (If you haven’t seen fragments before I introduced…

Simon Willison’s Weblog: Maybe Meta’s Llama claims to be open source because of the EU AI act

Apr 20, 2025

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Kurt Seifried

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Source URL: https://simonwillison.net/2025/Apr/19/llama-eu-ai-act/#atom-everything Source: Simon Willison’s Weblog Title: Maybe Meta’s Llama claims to be open source because of the EU AI act Feedly Summary: I encountered a theory a while ago that one of the reasons Meta insist on using the term “open source” for their Llama models despite the Llama license not actually conforming…

Simon Willison’s Weblog: Claude Code: Best practices for agentic coding

Apr 19, 2025

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Kurt Seifried

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Source URL: https://simonwillison.net/2025/Apr/19/claude-code-best-practices/#atom-everything Source: Simon Willison’s Weblog Title: Claude Code: Best practices for agentic coding Feedly Summary: Claude Code: Best practices for agentic coding Extensive new documentation from Anthropic on how to get the best results out of their Claude Code CLI coding agent tool, which includes this fascinating tip: We recommend using the word…

Wired: An AI Customer Service Chatbot Made Up a Company Policy—and Created a Mess

Apr 19, 2025

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Kurt Seifried

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Source URL: https://arstechnica.com/ai/2025/04/cursor-ai-support-bot-invents-fake-policy-and-triggers-user-uproar/ Source: Wired Title: An AI Customer Service Chatbot Made Up a Company Policy—and Created a Mess Feedly Summary: When an AI model for code-editing company Cursor hallucinated a new rule, users revolted. AI Summary and Description: Yes Summary: The incident involving Cursor’s AI model highlights critical concerns regarding AI reliability and user…

Simon Willison’s Weblog: Quoting Andrew Ng

Apr 18, 2025

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Kurt Seifried

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Source URL: https://simonwillison.net/2025/Apr/18/andrew-ng/ Source: Simon Willison’s Weblog Title: Quoting Andrew Ng Feedly Summary: To me, a successful eval meets the following criteria. Say, we currently have system A, and we might tweak it to get a system B: If A works significantly better than B according to a skilled human judge, the eval should give…

AWS Open Source Blog: Modernizing Snowflake Corporate’s Kubernetes Infrastructure with Bottlerocket and Karpenter

Apr 18, 2025

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Kurt Seifried

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Source URL: https://aws.amazon.com/blogs/opensource/modernizing-snowflake-corporates-kubernetes-infrastructure-with-bottlerocket-and-karpenter/ Source: AWS Open Source Blog Title: Modernizing Snowflake Corporate’s Kubernetes Infrastructure with Bottlerocket and Karpenter Feedly Summary: Snowflake Corporate IT Cloud Operations reached a critical juncture in its cloud infrastructure evolution. Managing large-scale containerized workloads on Amazon Elastic Kubernetes Service (Amazon EKS) demanded a modern, secure, and efficient operating system. The existing…

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