Four-Model Squad: A Claude Code Setup That Makes Fable the Tech Lead

Fable 5 as the commander, Opus as the deep thinker, Sonnet as the grunt worker, Codex as the parallel-universe senior engineer — a multi-model orchestration setup inside Claude Code that reserves the most expensive brain for the most critical decisions.

The Honest Multi-Agent Report, 10 Months Later — Cognition's Walden: Keep Writes Single-Threaded, Let Other Agents Pour In Intelligence

Cognition's Walden Yan returns after Don't Build Multi-Agents with three patterns that actually ship: Devin Review's clean-context loop, cross-frontier smart friends, and manager Devin. The common rule: writes stay single-threaded.

GitHub Agent HQ: Claude, Codex, and Copilot Now Fight Side by Side in the Same PR — The Multi-Agent Era Is Here

GitHub's Agent HQ now offers multi-agent support (Claude, Codex, Copilot) for Copilot Pro+ & Enterprise users. Run multiple AIs simultaneously in GitHub/VS Code to tackle problems from different angles. Outputs become Draft PRs. A paradigm shift for code review.

Kimi K2.5 Trains an Agent Commander with RL — SemiAnalysis Tests Show Claude Agent Teams Are Actually Slower and More Expensive

SemiAnalysis: Kimi K2.5's agent swarm uses an RL-trained 'orchestrator' (not prompt magic). Claude Agent Teams were slower, pricier, & scored lower. Multi-agent is shifting from 'prompt engineering' to 'distributed scheduling.'