8 min read
Anthropic Pulled Fable 5 and Mythos 5: What the Ban Means
Anthropic disabled Claude Fable 5 and Mythos 5 on June 12 under a US export order over a…
The Lab · Written in the open · Tagged Claude
Lab.
Working notes from the studio. The tools I build, the workflows I keep, the mistakes I paid for.
67 entries · latest 2026-09-06
7 min read
Claude Fable 5 vs GPT-5.5 vs Gemini 3.1 Pro: Who Leads Now?
SWE-Bench Pro: Claude Fable 5 hits 80.3 percent, GPT-5.5 lands 58.6, Gemini 3.1 Pro 54.2
8 min read
Claude Fable 5 vs Opus 4.8: Is Double the Price Worth It?
Fable 5 costs 10 dollars per million input tokens against 5 for Opus 4.8, output is 50 vs…
8 min read
Claude Fable 5 Is Here: The First Public Mythos-Class Model
Anthropic released Claude Fable 5 on June 9, 2026, the first Mythos-class model anyone can use
9 min read
From Notion to MCP Server: I Rebuilt 4 Workflows in a Weekend
Migrated 4 of 7 Notion automations to an MCP server in one weekend
10 min read
5 Claude API Errors That Cost Me Money (And How I Trapped Them)
Retry storms turned 1 timeout into 340 duplicate calls billed in 90 seconds
10 min read
The 1M Context Window vs Prompt Caching: When to Use Which
1M context costs full price on every query, caching cuts repeated tokens to 1/10
10 min read
Shopify Admin API From Claude: 5 Patterns I Use Across 15 Repos
Product create via Admin API beats clicking through the dashboard every time
9 min read
What I Run as Cron Jobs in My Claude Stack: 6 Automations
6 cron jobs run my studio publishing pipeline on a 2 EUR/month server
10 min read
Claude Files API in Production: 5 Patterns for Document Workflows
Files API replaced my 40KB inline blobs with reusable file IDs across requests
9 min read
How I Auto-Publish a Blog Article Per Day With GitHub Actions and Claude
Daily blog automation runs free on GitHub Actions cron at 06:00 UTC
9 min read
Building Multi-Agent Workflows With Claude: A Solo Studio Playbook
Three parallel writer agents drafting at once cut my blog turnaround from 6 hours to 90 minutes