Yandex Launches YaFSDP

Yandex has unveiled YaFSDP, a groundbreaking open-source tool designed to enhance the training efficiency of large language models (LLMs).

This innovative method stands out as the most effective publicly available tool for improving GPU communication and reducing memory usage during LLM training.

With the potential to speed up training by up to 26%, YaFSDP promises significant cost savings and performance enhancements for developers and companies.

Key Benefits of YaFSDP

  • Improved Efficiency: YaFSDP reduces GPU communication inefficiencies, optimizing memory usage and ensuring uninterrupted GPU interactions. This results in a speedup of up to 26% compared to FSDP, depending on the architecture and number of parameters.
  • Cost Savings: By decreasing the training time and GPU resources needed, YaFSDP can save developers and companies hundreds of thousands of dollars monthly. For instance, in scenarios involving models with 70 billion parameters, it can save the resources of approximately 150 GPUs, translating to potential savings of $0.5 to $1.5 million per month.
  • Open-Source Accessibility: YaFSDP is freely available on GitHub, enabling machine learning engineers and companies worldwide to benefit from its efficiency improvements.

Contributions to the Global AI Community

Yandex has made YaFSDP accessible to the global AI community as part of its ongoing commitment to support advancements in machine learning.

The tool’s release follows a series of successful open-source projects by Yandex, including CatBoost, YTsaurus, AQLM, and Petals, which have all gained popularity among ML professionals.

Mikhail Khruschev, a senior developer at Yandex, emphasized the team’s dedication to improving LLM training methods.

“Currently, we’re actively experimenting with various model architectures and parameter sizes to expand YaFSDP’s versatility. We are thrilled to share our developments in LLM training with the global ML community, contributing to increased accessibility and efficiency for researchers and developers worldwide.”

YaFSDP’s Technical Advantages

YaFSDP builds upon the foundation of FSDP, excelling in communication-heavy stages of LLM training such as pre-training, alignment, and fine-tuning. Its effectiveness has been demonstrated on models ranging from 13 to 70 billion parameters, particularly in the 30 to 70 billion range. This makes YaFSDP especially suitable for widely-used open-source models based on the LLaMA architecture.

A Closer Look at LLM Training Challenges

Training LLMs is a resource-intensive process, demanding substantial computing power, processor memory, and efficient processor communications. YaFSDP addresses these challenges by improving GPU communication and optimizing memory usage. This leads to faster training times and reduced costs.

During LLM training, computations are distributed among numerous GPUs organized into clusters. Inefficient communication between these processors can become a bottleneck, slowing down the training process. YaFSDP mitigates this issue by eliminating GPU communication inefficiencies, optimizing network usage, and reducing memory load.

Future Prospects

The introduction of YaFSDP marks a significant step forward in LLM training efficiency. As Yandex continues to experiment with different model architectures and parameter sizes, the tool’s versatility and applicability are expected to grow, benefiting the broader machine learning community.

For more details and to access YaFSDP, visit the GitHub repository.

 

Dan Taylor is the founder and editor of International Search Insights (ISI), the publication behind ReadIsi, and a Partner and Head of Innovation (Search & AI) at SALT.agency. He has worked in search for more than a decade, in-house and agency-side, and is regarded as one of the West’s leading voices on search engines beyond Google, including Yandex, Baidu, Naver and Cốc Cốc. On ReadIsi, Dan covers the engines and AI answer platforms that English-language coverage tends to miss: Baidu and ERNIE, Yandex and Alice AI, Naver, Cốc Cốc, Shenma, Sogou, WeChat and Weibo search, plus DeepSeek and Alibaba’s Qwen. He also keeps dated records of documented changes, such as the Yandex, Baidu and Naver algorithm update histories and the DeepSeek, ERNIE and Qwen model update histories. His approach is to take learnings from global search engines and apply logic with a high evidence threshold. A claim needs a source, patterns seen in one market are treated as a hypothesis until they are checked in another, and where the evidence is thin he says so. For brands, that means advice built on what can be shown, with measurement that separates being cited from being chosen. Dan is credited with coining the term “edge SEO” and won the inaugural TechSEO Boost research competition in 2018 for his work on CDN and edge changes for SEO. In 2026 he was credited with coining “Infinite Tail” to describe how keyword research is changing with AI search. He is the author of AI Search Marketing For The Travel Sector, writes for Search Engine Journal, Search Engine Land and Travel Marketing Guy, and has advised technology, SaaS, travel and enterprise ecommerce brands, including Cloudflare, GitLab and Airbnb. He has given multiple talks and panels at the International Search Summit in Barcelona, and has also spoken at Optimization Moscow, brightonSEO, Google Search Central Live Deep Dive Asia in Bangkok, Athens SEO and the Asia SEO Virtual Summit 2026, where his talk looked at how Baidu, Naver, DeepSeek, Tencent, Cốc Cốc and Yandex built their own AI answers.