VoicesSimon Willison 8-Post Day - Sonnet 4.6 Review and Rodney v0.4.0simonwillison.net·high signalXBlueskyLinkedInCopy linkWillison published 8 posts covering Sonnet 4.6 SVG benchmarks, Rodney v0.4.0 browser automation, Chartroom CLI, and Qwen 3.5 analysis.SourceSource pagesimonwillison.net↳ Follow the threadShared entity / Stack layerSimon Willison reads OpenAI's spend chart and pins the late-July jump to internal GPT-6 Astra accesssimonwillison.netShared entity / Stack layerPattern: code decay has no physical ceiling, and agents remove the last friction that slowed itSimon WillisonShared entity / ContrastSimon Willison drove Blender from a coding agent on macOS and rendered a 3D pelican for $4.24 in Astra tokensSimon Willison's WeblogShared entity / Recurring source clusterTip: point a coding agent at the installed Blender app and it will write .blend files and render moviesSimon WillisonShared entity / Stack layerSimon Willison drives Blender from a coding agent on macOS and turns it into a reusable skillsimonwillison.net (TIL)Shared entity / Stack layerZach Kehs on why bad code has no floor, and what that means for LLM-accelerated teamsZach Kehs (via simonwillison.net)Update thread / Follow-up threadOpenAI's research-acceleration post shows daily coding-agent spend per researcher going from roughly $0 in February to about $600 in late AugustSimon Willison's Weblog / OpenAIStack layer / ContrastCROSS-CATEGORY: Four Independent Projects in 48 Hours Built the Portability Layer That Moves Lock-In Off the Agent VendorEngrim, Kit, Yurei and Crew (via Hacker News Show HN and Product Hunt)