Observed arrival · 2026-11-11
ArchDiff turns model architecture into a code-style diff
A reference site that compares language-model and agent architectures component by component, with a process for community-proposed changes.
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◎Niche
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- For
- LLM researchers and architecture-curious builders
- Worth noticing
- The homepage lists 13 models against a 20-component LLM blueprint and marks components as unchanged, changed, or absent.
Field notes
The homepage divides its reference into LLM and agent blueprints, with component explanations, trade-offs, and sources described as part of the material. Model listings pair organization and release month with parameter counts and short architecture notes. Proposal instructions describe editing a diagram, explaining the change's benefit and cost, and citing supporting work, followed by votes, source review, merge, and reversible commit history.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue