Anthropic vs OpenAI Prompt Caching 2026: Cost Math + 3 Cache-Miss Fixes

Anthropic and OpenAI both price cache reads at 0.1x input, but writes and TTLs differ. Three cache-miss patterns and the cost math on 10M tokens a day.

Apple's Third-Generation Foundation Models: A Developer's Read on WWDC 2026

Apple's AFM 3 at WWDC 2026: five models, a 20B sparse on-device LLM, and Private Cloud Compute on NVIDIA GPUs. What is verified, what is spin.

Claude 529 Overloaded Error: Causes and Retry Options

Claude API 529 overloaded_error hit four times in 2026, once for 3h+. Eight ranked fixes: exponential backoff plus sub-200ms failover, in Python and Node.

CC Switch Download & Install for Claude Code, Codex (v3.20.1)

Install CC Switch v3.20.1 to switch Claude Code, Codex, Gemini CLI and 4 more from one tray. Direct .msi, .dmg, .deb links, brew and npm CLI setup. Updated Sept 2026.

codex: command not found & EACCES on npm install -g @openai/codex

Fix codex: command not found and EACCES: permission denied after npm install -g @openai/codex. 7 fixes: PATH, npm prefix, NVM, Volta, sudo-owned dirs, Node 16+.

Qwen 3.7 Max vs Plus (2026): Plus Wins at 1/6 the Price

Qwen 3.7 Plus ($0.40/M) vs Max ($2.50/M): ~6× cheaper, same 1M context, adds vision, within 2 pts on SWE-Bench Pro. Which to pick + 3 real-task benchmarks.

Claude Opus 4.7 Outages & 529 Errors: Retry + Opus 4.8 Migration

Opus 4.7 hit two May 2026 error windows plus 529 overloaded errors. Get the retry/fallback pattern and migration plan to Opus 4.8.

Claude Opus 4.8: Benchmarks, Fast Mode & Key Changes

Claude Opus 4.8 launches May 28, 2026 at 4.7 pricing: 1890 Elo on GDPval-AA, 69.2% SWE-bench Pro, 35% fewer tokens, and new Fast Mode explained.

Cursor Composer 2.5: What's New, Best Models, and How to Set It Up

Composer 2.5 ships May 2026 with a Kimi K2.5 backbone, 79.8% SWE-Bench Multilingual, and a Fast tier that costs more than Opus.

Codex Goal Mode & Remote Computer Use: How OpenAI's Agent Can Code for Days

Goal Mode and Locked Computer Use went GA in Codex on May 21, 2026. What they do, the safety model, and how to run multi-day agentic coding on budget.