Reportedly: DeepSeek releases V4.1-Flash-1017 with lower cost and stronger performance
Reported by GeekPark · not yet confirmed by the company or a second independent outlet. We update this page when it is.
DeepSeek updated its V4.1 Flash model to V4.1-Flash-1017 on October 17, with web, app, and API all switched to the new version. The model shows improved benchmark results while reducing task runtime and output length, achieving a new performance-cost Pareto optimum. The optimization specifically targets DeepSeek Harness, Tencent CodeBuddy, and WorkBuddy frameworks, GeekPark reported.
China context
- Original name
- 深度求索
- Outside China
- Not stated in the sources yet
- Claims
- Company-reported; not yet independently evaluated
- For builders
- Developers outside China can test the new model via the API to verify the claimed performance and cost improvements for their workloads.
- For investors
- The efficiency gains may strengthen DeepSeek's competitive position in the global API market, but independent verification of benchmarks is needed.
Translated from Chinese. Quotes and facts link to the original sources.
DeepSeek released V4.1-Flash-1017, an update to its V4.1 Flash model, on October 17. The new version is available on the official web interface, mobile app, and API. It delivers better benchmark performance while shortening task runtime and output length, lowering cost and increasing speed. The update includes optimizations for DeepSeek Harness, Tencent CodeBuddy, and WorkBuddy platforms.
The update achieves a new performance-cost Pareto optimum across multiple Harness benchmarks, indicating improved efficiency. Specific optimizations target DeepSeek Harness, Tencent CodeBuddy, and WorkBuddy, suggesting better integration with these development frameworks.
Developers using DeepSeek's API or these frameworks can now get faster, cheaper inference without sacrificing quality, which may pressure competing model providers to match the efficiency gains.
Lower cost and faster output for the same or better performance can reduce operational expenses for businesses using DeepSeek's API, especially in coding and workflow automation scenarios.
Monitor whether DeepSeek publishes detailed benchmark comparisons and whether the optimizations for Tencent CodeBuddy and WorkBuddy lead to increased adoption among enterprise developers.