Tag: tool utilization
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Simon Willison’s Weblog: GPT-5-Codex
Source URL: https://simonwillison.net/2025/Sep/23/gpt-5-codex/#atom-everything Source: Simon Willison’s Weblog Title: GPT-5-Codex Feedly Summary: GPT-5-Codex OpenAI half-relased this model earlier this month, adding it to their Codex CLI tool but not their API. Today they’ve fixed that – the new model can now be accessed as gpt-5-codex. It’s priced the same as regular GPT-5: $1.25/million input tokens, $10/million…
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Simon Willison’s Weblog: Magistral 1.2
Source URL: https://simonwillison.net/2025/Sep/19/magistral/ Source: Simon Willison’s Weblog Title: Magistral 1.2 Feedly Summary: Mistral quietly released two new models yesterday: Magistral Small 1.2 (Apache 2.0, 96.1 GB on Hugging Face) and Magistral Medium 1.2 (not open weights same as Mistral’s other “medium" models.) Despite being described as "minor updates" to the Magistral 1.1 models these have…
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Tomasz Tunguz: 10 Months into AI Agents : Which Are Used Most?
Source URL: https://www.tomtunguz.com/mcp-server-activity/ Source: Tomasz Tunguz Title: 10 Months into AI Agents : Which Are Used Most? Feedly Summary: When Anthropic introduced the Model Context Protocol, they promised to simplify using agents. MCP enables an AI to understand which tools rest at its disposal : web search, file editing, & email drafting for example. Ten…
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Simon Willison’s Weblog: Agentic Coding: The Future of Software Development with Agents
Source URL: https://simonwillison.net/2025/Jun/29/agentic-coding/ Source: Simon Willison’s Weblog Title: Agentic Coding: The Future of Software Development with Agents Feedly Summary: Agentic Coding: The Future of Software Development with Agents Armin Ronacher delivers a 37 minute YouTube talk describing his adventures so far with Claude Code and agentic coding methods. I picked up a bunch of useful…
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CSA: Primer on Model Context Protocol (MCP) Implementation
Source URL: https://cloudsecurityalliance.org/articles/a-primer-on-model-context-protocol-mcp-secure-implementation Source: CSA Title: Primer on Model Context Protocol (MCP) Implementation Feedly Summary: AI Summary and Description: Yes **Summary:** The text serves as a comprehensive implementation guide for deploying the Model Context Protocol (MCP) with a security-focused lens, emphasizing threat modeling using the MAESTRO framework. It offers practical insights into building secure Large…
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Simon Willison’s Weblog: The last year six months in LLMs, illustrated by pelicans on bicycles
Source URL: https://simonwillison.net/2025/Jun/6/six-months-in-llms/#atom-everything Source: Simon Willison’s Weblog Title: The last year six months in LLMs, illustrated by pelicans on bicycles Feedly Summary: I presented an invited keynote at the AI Engineer World’s Fair in San Francisco this week. This is my third time speaking at the event – here’s my talks from October 2023 and…
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Simon Willison’s Weblog: Highlights from the Claude 4 system prompt
Source URL: https://simonwillison.net/2025/May/25/claude-4-system-prompt/ Source: Simon Willison’s Weblog Title: Highlights from the Claude 4 system prompt Feedly Summary: Anthropic publish most of the system prompts for their chat models as part of their release notes. They recently shared the new prompts for both Claude Opus 4 and Claude Sonnet 4. I enjoyed digging through the prompts,…
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Simon Willison’s Weblog: Quoting Luke Kanies
Source URL: https://simonwillison.net/2025/May/13/luke-kanies/#atom-everything Source: Simon Willison’s Weblog Title: Quoting Luke Kanies Feedly Summary: I did find one area where LLMs absolutely excel, and I’d never want to be without them: AIs can find your syntax error 100x faster than you can. They’ve been a useful tool in multiple areas, to my surprise. But this is…
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Simon Willison’s Weblog: Introducing OpenAI o3 and o4-mini
Source URL: https://simonwillison.net/2025/Apr/16/introducing-openai-o3-and-o4-mini/ Source: Simon Willison’s Weblog Title: Introducing OpenAI o3 and o4-mini Feedly Summary: Introducing OpenAI o3 and o4-mini OpenAI are really emphasizing tool use with these: For the first time, our reasoning models can agentically use and combine every tool within ChatGPT—this includes searching the web, analyzing uploaded files and other data with…