Verified65% confidenceFactExact time
In its July changelog, DeepSeek credited its internal Harness (the "minimal mode") as the behind-the-scenes contributor to V4 Flash's programming benchmark scores.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
8/25/2026
First Seen
Valid until: 11/23/2026
Sources
Related Entities
Related Claims
UnverifiedThe author recommends using DeepSeek V4 Flash for vulnerability discovery and using stronger models such as DeepSeek V4 Pro or Opus for validation.79% similarUnverifiedThe new version of DeepSeek Harness is deeply integrated with the model training of V4 Pro and V4.1 Flash, and supports updating system prompts while retaining KVCache.78% similarVerifiedDeepSeek has released an experimental multimodal model, DeepSeek V4 Flash Vision EXP, which performs excellently in both text and multimodal tasks.77% similarUnverifiedThe original three modes — "Fast / Expert / Real-time" — on DeepSeek's web and app clients have been merged and unified into V4.1 Flash, so users no longer need to select manually.76% similar
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