Why it matters

DeepSeek releases a faster, cheaper model and opens its search tools

The Decoder · Deepseek V4.1 Flash 1017 beats larger rivals in agentic tasks while once again massively cutting per-task costs

DeepSeek released V4.1-Flash-1017 as an open-weight model with better benchmarks and shorter outputs, plus Search and Fetch APIs priced at $0.75 per 1,000 calls.