◉CLAUDE LABJP
●MODEL — Claude Fable 5.1 and Claude Mythos 5.1 landed on September 1. They are the same underlying model; only the strength of the safeguards differs●PRICING — Per-token rates hold at $10/$50 per MTok. What changed is cache reads, cut 75% to $0.25 per MTok●COST — How much that saves depends on your workload: roughly 25% for typical use, up to about 45% for context-heavy agentic work. Worth measuring your own split before quoting a number●BENCH — Terminal-Bench-Science 0.1 climbs from 24.7% on Fable 5 to 52.6%. Anthropic also states a standard error of 3.5-4.5 points, which is worth remembering before reading small gaps as real●SAFEGUARDS — Sharper cyber safeguards cut interventions in Claude Code sessions by roughly 60% on average. Finding vulnerabilities is now allowed; developing exploits still is not●API — New API accounts created from today can no longer edit prior context while preserving Claude's thinking transcript. It is an anti-distillation measure, and existing accounts are unaffected for now●MODEL — Claude Fable 5.1 and Claude Mythos 5.1 landed on September 1. They are the same underlying model; only the strength of the safeguards differs●PRICING — Per-token rates hold at $10/$50 per MTok. What changed is cache reads, cut 75% to $0.25 per MTok●COST — How much that saves depends on your workload: roughly 25% for typical use, up to about 45% for context-heavy agentic work. Worth measuring your own split before quoting a number●BENCH — Terminal-Bench-Science 0.1 climbs from 24.7% on Fable 5 to 52.6%. Anthropic also states a standard error of 3.5-4.5 points, which is worth remembering before reading small gaps as real●SAFEGUARDS — Sharper cyber safeguards cut interventions in Claude Code sessions by roughly 60% on average. Finding vulnerabilities is now allowed; developing exploits still is not●API — New API accounts created from today can no longer edit prior context while preserving Claude's thinking transcript. It is an anti-distillation measure, and existing accounts are unaffected for now
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◉ Claude AI/2026-04-11Intermediate

What 'Claude Powerup' Actually Means — Choosing Between Pro, Max, and the API

'Claude Powerup' isn't an official feature—it's a community term. Drawing on years of running automated publishing across several sites, here's how to choose between Pro, Max, and the API, and how to live with usage limits honestly.

⬡ API & SDK/2026-04-09Intermediate

Claude Managed Agents: Anthropic's New Agent Infrastructure (April 2026)

Anthropic launched Claude Managed Agents in public beta on April 8, 2026. This guide covers everything: sandboxed execution, authentication, checkpoints, scoped permissions, pricing, and how to get started building production-ready AI agents 10x faster.

⬡ API & SDK/2026-04-01Advanced

Building Production-Ready AI Apps with Claude API × Supabase — pgvector RAG, Realtime Sync & Row Level Security Integration Guide

Build production AI apps with Claude API and Supabase. Implement RAG with pgvector, multi-tenant RLS, and real-time streaming in one integrated architecture.

⬡ API & SDK/2026-03-31Advanced

Building Self-Healing AI Agents with Claude API — Error Detection, Auto-Recovery, and Graceful Degradation Patterns for Production

Learn how to build production-grade AI agents that automatically detect failures and self-heal using Claude API. Covers retry strategies, fallback chains, Supervisor patterns, and observability pipelines.

⬡ API & SDK/2026-03-29Advanced

Claude API Think Tool — Dramatically Improve Tool Call Accuracy with Interleaved Reasoning in Agentic Workflows

Master the Claude API Think Tool pattern. Learn the key differences from Extended Thinking, implement interleaved reasoning in agent loops, and apply production design patterns that improve tool call accuracy by up to 54%.

⬡ API & SDK/2026-03-27Advanced

Building LLM Evaluation Pipelines with Claude API — Claude-as-Judge, Prompt A/B Testing, and Quality Scoring Patterns

Designing and implementing LLM evaluation pipelines on the Claude API — Claude-as-Judge, prompt A/B testing, quality scoring, and regression testing for production applications.

⬡ API & SDK/2026-03-26Intermediate

Build a PDF Analysis and Summarization App with Claude API — Vision plus Extended Thinking

Learn how to build a PDF analysis and summarization application using Claude API's Vision capabilities and Extended Thinking, with step-by-step Python implementation.

⬡ API & SDK/2026-03-25Advanced

Building Edge AI Microservices with Claude API and Cloudflare Workers

Low-latency, highly scalable AI microservices built from Claude API and Cloudflare Workers — edge design patterns with production-ready code.

⬡ API & SDK/2026-03-24Intermediate

Claude API Token Counting Guide — How to Estimate Token Usage and Optimize Costs Before Sending Requests

Learn how to use the Claude API Token Counting endpoint to estimate token usage before sending messages. Covers cost management, context window optimization, and production implementation patterns.