9 min read
Claude Fable 5.1 and Mythos 5.1: What Changed on September 1
Anthropic shipped Fable 5.1 and Mythos 5.1 on September 1. Here is what actually changes for Claude Code…
The Lab · Written in the open
Lab.
Working notes from the studio. The tools I build, the workflows I keep, the mistakes I paid for.
471 entries · latest 2026-10-23
10 min read
The Empty State Every RAXXO Tool Needs Before I Call It Shipped
A blank screen on day one reads as broken, not empty. The three-part rule I now write before…
8 min read
NIGHTMILE Is Out: Apple Rejected It for a Leaderboard It Does Not Have
My iPhone drift racer is live. 27 days, 273 commits, two rejections, and the one about a leaderboard…
8 min read
Claude Fable 5.1 Refuses Less: What Actually Changed
Fable 5.1 cuts wrong refusals 85 percent in biology, 60 percent in cyber. Plus the refusal that returns…
8 min read
Claude Fable 5.1 vs Opus 5: Which One Earns Its Price
Fable 5.1 costs double what Opus 5 does. On single questions they are within 1.4 points; on long…
8 min read
Claude Fable 5.1 Benchmarks: Every Number Compared
All nine Claude Fable 5.1 benchmarks against Fable 5, Opus 5 and GPT-5.6 Sol, plus the 75 percent…
9 min read
The 404 Page I Almost Shipped Without Testing
A 404 page that looked finished on a laptop buried its own exit button on a phone. The…
8 min read
Shipping a Three.js Game to the iOS App Store
Four silent failures from shipping a Three.js game to the iOS App Store: the ANGLE renderer flag, GPU-process…
9 min read
The Performance Budget Every RAXXO Tool Has to Meet Before It Ships
A tool that felt instant on my desk crawled on mobile in a parking lot. The performance budget…
9 min read
Why Every RAXXO Tool Skips the Loading Spinner
A blank spinner made a fast preview panel feel broken. The shaped-placeholder rule that replaced it, and the…
9 min read
A Federal Judge Just Blocked the Pentagon's Anthropic Ban
A federal judge ruled the Pentagon's Anthropic blacklist was illegal retaliation, and what the case means for a…
9 min read
Why Some RAXXO Tools Are One-Time Buys, Others Subscriptions
The pricing model follows what a tool actually is, complete on delivery or only valuable while it keeps…