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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 differsPRICING — Per-token rates hold at $10/$50 per MTok. What changed is cache reads, cut 75% to $0.25 per MTokCOST — 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 numberBENCH — 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 realSAFEGUARDS — Sharper cyber safeguards cut interventions in Claude Code sessions by roughly 60% on average. Finding vulnerabilities is now allowed; developing exploits still is notAPI — 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 nowMODEL — 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 differsPRICING — Per-token rates hold at $10/$50 per MTok. What changed is cache reads, cut 75% to $0.25 per MTokCOST — 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 numberBENCH — 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 realSAFEGUARDS — Sharper cyber safeguards cut interventions in Claude Code sessions by roughly 60% on average. Finding vulnerabilities is now allowed; developing exploits still is notAPI — 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 Code/2026-04-09Advanced

Claude Code × Docker — DevContainers, Multi-Stage Builds, and Production Deployment

A practical guide to production-grade development workflows combining Claude Code and Docker. From DevContainer setup and multi-stage build optimization to GitHub Actions CI/CD and Kubernetes deployment — with practical code examples throughout.

API & SDK/2026-04-08Advanced

Claude API Webhooks & Async Processing: Error Patterns and Recovery Strategies

A practical guide to handling errors when integrating Claude API with webhooks and async pipelines. Covers timeouts, duplicate processing, idempotency, dead-letter queues, circuit breakers, and graceful degradation with full Python examples.

Claude Code/2026-04-08Advanced

Claude Code × Go: Production-Grade REST API Development — Gin, GORM, Docker & GitHub Actions

Build production-grade Go REST APIs with Claude Code. Covers Gin, GORM, PostgreSQL, Docker multi-stage builds, JWT auth, and GitHub Actions CI/CD.

API & SDK/2026-04-07Advanced

Production-Ready Stateful AI Agents with Claude API + LangGraph: Graph-Based Design, Persistence, and Human-in-the-Loop

Implementation patterns for running stateful LangGraph + Claude API agents in production: why from_conn_string fails at compile(), how the recursion_limit default changed, and the schema-evolution trap that breaks interrupt() resumption.

Claude Code/2026-04-07Advanced

An Implementation Notebook for Shipping Android/Kotlin Apps to Google Play with Claude Code

A production notebook from years of running an indie Android app business. Compose × Hilt × Room design calls, ProGuard crash triage, and a 14-item pre-release checklist that goes in front of every Google Play AAB upload.

Claude Code/2026-04-07Advanced

Claude Code × Python FastAPI in Production — Architecture, pytest, and Docker Deployment

Building production-ready Python FastAPI servers with Claude Code as an AI pair programmer — Pydantic v2, pytest automation, Docker, and CI/CD, with working code at each step.

API & SDK/2026-04-05Advanced

MCP Server Production Deployment, Security, and Monetization — Your Roadmap to Launching MCP as a SaaS

Deploy and monetize MCP servers: OAuth 2.0 auth, rate limiting, Stripe billing, CI/CD, and Cloudflare Workers — TypeScript patterns included.

API & SDK/2026-04-04Advanced

Claude API × GitHub Actions: Production CI/CD Pipelines for Automated Code Review, Test Generation, and Documentation

Add AI code review, test generation, and PR summaries to GitHub Actions with Claude API. Covers cost control, security, and rate limit strategies.

Claude AI/2026-04-03Intermediate

Claude Sonnet 4.6 — 1M Tokens, Computer Use & Extended Thinking in Production

Claude Sonnet 4.6 production guide: 1M tokens, Computer Use 72.5, Extended Thinking, Opus vs Sonnet cost comparison, and Prompt Caching optimization with code.

API & SDK/2026-04-02Advanced

Claude API Messages Batches: Cutting Production Costs by Up to 50% with Async Processing

Field notes from running the Claude API Messages Batches API in production. Polling design, composite custom_id keys, the 29-day result expiry trap, and the real cost numbers from three months of nightly batches.

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.