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Technical deep-dives, architectural patterns, and industry updates for the modern AI engineer.

AI Coding

LongCat-2.5 in Claude Code: Setup, Pricing, and Benchmarks

Connect LongCat-2.5 through its Anthropic-compatible endpoint or Responses API, then verify a real file-read task. Distinguish the current 1M context and 256K API output limits from client limits. Compare its published coding results with GLM-5.3, Kimi K3, and DeepSeek-V4.1-Flash, calculate session costs, and handle throttling. Check the release page's weight-download status before planning local deployment.

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Cost & Limits

ChatGPT and Codex Shared Allowance in December: How to Plan

OpenAI says Plus, Pro, and Business will share usage across ChatGPT and Codex starting in December, with Instant chat excluded. Compare the announcement with current limits, measure your Codex usage, adjust models and reasoning, and choose between waiting, credits, an upgrade, or separate API billing. Includes a worked token-cost example and the confirmed cancellation of the Pro 200 allowance cut.

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