Expired50% confidenceFactExact time

DS4 retains an ultra-long context capability of 1M (1 million tokens) through KV cache disk persistence.

1

Sources

50%

Confidence

Medium-term (~90 days)

Relevance

7/2/2026

First Seen

Valid until: 9/30/2026(expired)

Sources

Hands-On Testing of DS4 Engine by Redis Creator: How Does DeepSeek V4 Perform Locally on a 128GB Mac?

bilibili苦苦菜-分享版6/6/2026

Related Claims

UnverifiedDS4 implements KV cache disk persistence to preserve the 1 million token ultra-long context capability of DeepSeek V4 Flash.82% similar UnverifiedDS4 leverages Apple silicon's high-speed NVMe storage to offload portions of the KV cache to disk when memory is insufficient.72% similar

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