DeepSeek V4 Name Migration: What You Need to Do Before July 24 (5 Days Left)
TL;DR: Two things change on July 24. The one everyone knows about: deepseek-chat and deepseek-reasoner stop working — migrate to deepseek-v4-flash / deepseek-v4-pro, it’s a one-line fix. The one that’ll cost you more: DeepSeek now charges 2× during Beijing business hours, and most teams only learn about it from their next invoice. This post covers both, with code samples and a checklist. The Deadline July 24, 2026 at 23:59 Beijing time (15:59 UTC). Two legacy model names stop working: ...