[DeepSeek Gray Testing Million Token Context, Knowledge Base Updated to May 2025] Jinshi Data, February 11 – Today, multiple users reported that after the update, DeepSeek began gray testing a maximum context length of 1M (million) tokens. The context length of DeepSeek V3.1, released last August, was expanded to 128K. Meanwhile, the latest DeepSeek knowledge base has been updated to May 2025, and it can accurately output news from April 2025 in offline mode.