Daily digest
5 items · ~5 min · Week 2026-W26
Worth knowing (3)
Claude Fable 5 Exits Subscription Plans, Moves to Usage Credits
AnthropicStarting June 23, 2026, Claude Fable 5 is removed from Pro, Max, Team, and seat-based Enterprise plan allowances; continued access requires usage credits billed at $10/M input and $50/M output tokens — double the cost of Opus 4.8. Anthropic attributed the change to capacity constraints and stated the model may return to subscription plans once capacity improves.
Zhipu AI Market Cap Crosses HK$1 Trillion on GLM-5.2 Momentum
Zhipu AIZhipu AI's shares surged up to 42% intraday on June 22, 2026, pushing the Hong Kong-listed company's market capitalisation past HK$1 trillion (approximately US$128 billion) for the first time. The rally was driven by continued investor enthusiasm for GLM-5.2 — the company's 753B-parameter, MIT-licensed open-weight model — and a JPMorgan upgrade raising Zhipu's 2026–2030 revenue forecast by 7–16%. GLM-5.2 ranked second globally on the Code Arena front-end benchmark, behind only Anthropic's Claude Fable 5.
World Action Models: A Survey
National University of SingaporeA comprehensive survey of World Action Models (WAMs) — embodied predictive-action models that forecast future states to inform robot control. The authors organize 109 methods across three design philosophies (Render-and-Decode, Latent-Only, Video-Generation-Free) and four architectural axes, concluding that the field is converging on generating less of the future while preserving what control requires.
For reference (2)
Agentic Transformers Provably Learn to Search via Reinforcement Learning
A theoretical study showing that transformer-based agents trained via policy gradient on a stochastic k-ary tree environment provably develop a depth-first search mechanism, with one attention head tracking prior actions and another detecting failures and triggering backtracking. Policies trained on shallow trees generalize to deeper ones without additional training.
Claude Code v2.1.186: MCP CLI Auth, Bash Auto-Response, Workflow Filtering
AnthropicClaude Code v2.1.186 (released June 22) adds `claude mcp login <name>` and `claude mcp logout <name>` CLI commands for authenticating MCP servers without the interactive menu, makes `!` bash commands trigger automatic Claude responses (configurable via `respondToBashCommands: false`), adds status filtering to the `/workflows` agent detail view and a Skills section to `/plugin`, and fixes streaming failures after machine sleep plus numerous subagent and session-management bugs.