Claude Haiku 4.5 — Build Real-Time AI Apps at a Fraction of the Cost
Claude Haiku 4.5: 200K context, SWE-bench 73.3%, Extended Thinking, $1/$5 pricing. When to use Haiku vs Sonnet/Opus, with Prompt Caching and Batch API tips.
Building an AI Chatbot with Claude API — Streaming, Conversation History & Cost Optimization
Build a production-ready AI chatbot with the Claude API from scratch. Learn streaming responses, conversation history management, and token cost optimization with working code examples.
Claude Haiku 3 Deprecation (April 19, 2026): Complete Migration Guide to Claude Haiku 4.5
Claude Haiku 3 (claude-3-haiku-20240307) is being retired on April 19, 2026. This guide covers the deprecation timeline, what changes, and how to migrate to Claude Haiku 4.5 with ready-to-use code examples.
Claude API Error Handling and Retry Strategies
Learn about Claude API error codes, retry strategies, and rate limit handling. Best practices for building robust API integrations in production.
Claude API Rate Limits — Designing Automation That Doesn't Stall on 429s
Understand how Claude API rate limits (RPM, TPM, TPD) work, and learn practical patterns — token optimization, request queuing, batch processing, and Retry-After-aware retries — drawn from running multiple sites on automation.
Implementing Streaming Responses — Real-time Responses with the Claude API
Implement streaming responses with the Claude API using working Python and TypeScript examples — SSE format, event handling, error recovery, and UI patterns, in the order I verified them.
Claude API Quickstart — Your First API Call in 5 Minutes
Get started with the Claude API. From your API key to your first Python and TypeScript request, plus error handling and cost estimates — a 5-minute quickstart.