DeepSeek V4.1-Flash Update Ships Search APIs

DeepSeek releases V4.1-Flash update with Search and Fetch APIs for agent workloads.

Oct 17, 2026

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DeepSeek V4.1-Flash Update Ships Search APIs

DeepSeek releases V4.1-Flash update with Search and Fetch APIs for agent workloads.

In brief

DeepSeek releases V4.1-Flash update with Search and Fetch APIs for agent workloads. DeepSeek ships V4.1-Flash model update with Search and Fetch APIs to boost agent capabilities at low cost. Originally reported by Dealroom.

What happened

DeepSeek released DeepSeek-V4.1-Flash-1017 on October 17, an update to the V4.1-Flash model it launched in September.

The numbers

The update scores 77.0 on DeepSWE v1.1 coding benchmark, ahead of Claude Opus 5 and GPT-5.6 Sol.

Beyond the model

Beyond the model

DeepSeek opened Search and Fetch APIs for all developers with in-house search engine serving hundreds of millions of requests daily.

The one thing

DeepSeek ships V4.1-Flash model update with Search and Fetch APIs to boost agent capabilities at low cost.

Read the original on Dealroom

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