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Vibe Coding2026-08-06 · source-backed
Open-sourced under MIT, built on two abstractions: a Recursive Language Model (a persistent IPython REPL where the model calls sub-agents as functions, keeping programmatic access to context and history) and a Continual Harness treating its own prompts, skills, memory and sub-agents as CRUD-able state, with a /refine command that analyzes trajectories and makes targeted harness edits. Also working Game Boy Color and SEGA Genesis emulators on EmulatorBench. The ARC number is self-reported and explicitly unendorsed by ARC Prize. Ignore the number, copy the harness-as-editable-state design.
Each link below shares sources, entities, or timing with this story.
Opus built by Anthropic / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Opus built by Anthropic); both cover AGI, ARC, ARC Prize, Opus; overlapping topics (agent, arc-agi-3, model).
Opus built by Anthropic / Shared entities / Earlier coverage
Linked by a graph relationship (Opus built by Anthropic); both cover AGI, ARC, Opus; earlier AGI coverage from 2026-07-26.
Claude Code uses Opus / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Claude Code uses Opus); both cover AGI, ARC, Opus; overlapping topics (harness, model, number).
Opus built by Anthropic / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Opus built by Anthropic); both cover AGI, ARC; overlapping topics (agent, context).
Linked by a graph relationship (Opus built by Anthropic); both cover MIT, Opus; overlapping topics (context, model).
Claude Code uses Opus / Shared entity: MIT / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Claude Code uses Opus); both cover MIT; overlapping topics (agent, harness).
Opus built by Anthropic / Shared entity: Opus / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Opus built by Anthropic); both cover Opus; overlapping topics (call, model).
Linked by a graph relationship (Opus built by Anthropic); both cover Opus; overlapping topics (model, number).