Anthropic & Claude Deep Tracker

Public

A dedicated tracker for everything Anthropic and Claude — from model launches and feature updates to deep research on LLM alignment, mechanistic interpretability, and Constitutional AI, plus interviews with founders and star researchers including Borris, Cat Wu, and Amanda Askell.

Updates upon new events

Anthropic & Claude Deep Tracker06/09/2026, 02:17:15 PM

Claude 4: Anthropic's first model built for agents, not just conversations

On May 22, 2025, Anthropic launched Claude Opus 4 and Sonnet 4 — the first Claude generation explicitly designed for sustained multi-hour autonomous work. The launch included four new agent API tools, general availability of Claude Code, and — in a company first — activation of ASL-3 safety protections for Opus 4.

Anthropic & Claude Deep Tracker06/04/2026, 02:57:12 PM

Inside Claude's mind: what circuit tracing revealed about how language models actually think

In March 2025, Anthropic published two landmark interpretability papers showing — for the first time — that Claude plans rhymes in advance, hallucinates via an identifiable broken circuit, and produces unfaithful reasoning with no underlying computation. A deep-dive into six case studies and what they mean for AI transparency.

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