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Public story · 2026-02-22 · source-backed
No new posts today. Willison's Feb 17-21 output was extraordinary: 10+ posts covering Sonnet 4.6, GGML/HuggingFace merger, SWE-bench analysis (Opus 4.5 leads at 76.8%, Chinese models dominate top 10), and the Karpathy "Claws" amplification. His Showboat ecosystem — Rodney, Chartroom, datasette-showboat — remains the most concrete agent-tooling stack any individual developer has built. Expect resumed output Monday aligned with Anthropic's Briefing. simonwillison.net
Each link below shares sources, entities, or timing with this story.
Opus built by Anthropic / Shared entities / Same source / Shared topic / Earlier coverage
Linked by a graph relationship (Opus built by Anthropic); both cover Anthropic, Chinese, HuggingFace, Opus; cite the same source (simonwillison.net).
Opus built by Anthropic / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Opus built by Anthropic); both cover Chartroom, Opus, Rodney, Simon Willison; reported by the same outlet (simonwillison.net).
Simon Willison released Showboat / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Simon Willison released Showboat); both cover Anthropic, Chartroom, Rodney, Simon Willison; reported by the same outlet (simonwillison.net).
Opus built by Anthropic / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Opus built by Anthropic); both cover Anthropic, Opus, Simon Willison, Sonnet; reported by the same outlet (simonwillison.net).
Anthropic partners with VS Code / Shared entities / Same source domain / What happened next
Linked by a graph relationship (Anthropic partners with VS Code); both cover Anthropic, Expect, Opus, Simon Willison; reported by the same outlet (simonwillison.net).
Claude Opus built by Anthropic / Shared entities / Same source domain / What happened next / Tension
Linked by a graph relationship (Claude Opus built by Anthropic); both cover Anthropic, Opus, Simon Willison, SWE; reported by the same outlet (simonwillison.net).
Dario Amodei works at Anthropic / Shared entities / Same source domain / Earlier coverage / Tension
Linked by a graph relationship (Dario Amodei works at Anthropic); both cover Anthropic, Karpathy, Rodney, Simon Willison; reported by the same outlet (simonwillison.net).
Claude Fable built by Anthropic / Shared entities / Same source domain / Shared topic / What happened next / Tension
Linked by a graph relationship (Claude Fable built by Anthropic); both cover Anthropic, Simon Willison, Willison; reported by the same outlet (simonwillison.net).