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WatchingNewsWatching1 independent reports10

DeepSeek Releases V4.1-Flash, Slashing KV Cache Demands for AI Agents

First seen · 9/10/2026, 08:40 PMLatest activity · 9/10/2026, 08:40 PM

DeepSeek has open-sourced V4.1-Flash, a 552-billion-parameter multimodal model that activates just 16 billion parameters per token. By shrinking KV cache memory requirements to a quarter of its predecessor's footprint, the architecture significantly reduces the runtime overhead of long-horizon AI agents. Released under an MIT license, the model also narrowly edges out frontier systems like Opus 5 and GPT-5.6 Sol on the DeepSWE coding benchmark.

Event heat · last 24 hours

There are 8 persisted snapshots in the last 24 hours. Peak heat was 10 at 9/12, 14:00; latest heat is 10.

There are 8 persisted snapshots in the last 24 hours. Peak heat was 10 at 9/12, 14:00; latest heat is 10.10509/12, 14:00, event heat 109/12, 17:00, event heat 109/12, 20:00, event heat 109/12, 23:00, event heat 109/13, 02:00, event heat 109/13, 05:00, event heat 109/13, 08:00, event heat 109/13, 11:00, event heat 1024 hours agoNow
  1. 9/12, 14:00, event heat 10
  2. 9/12, 17:00, event heat 10
  3. 9/12, 20:00, event heat 10
  4. 9/12, 23:00, event heat 10
  5. 9/13, 02:00, event heat 10
  6. 9/13, 05:00, event heat 10
  7. 9/13, 08:00, event heat 10
  8. 9/13, 11:00, event heat 10

Reporting Timeline

  1. MediaThe Decoder9/10, 08:40 PMRepresentative
    DeepSeek Releases V4.1-Flash, Slashing KV Cache Demands for AI Agents