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Xiaohongshu Tech REDtech

Official account of the Xiaohongshu tech team, sharing tech innovations and problem insights, advancing together.

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Recent Articles

Latest from Xiaohongshu Tech REDtech

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Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Nov 4, 2025 · Artificial Intelligence

Unveiling the Law of Capacity Gap: Boosting Language Model Distillation Efficiency

At ACL 2025, a collaborative paper introduced the Law of Capacity Gap, revealing a linear 2.5× optimal teacher‑student size relationship in language model distillation, dramatically cutting compute costs and achieving Pareto‑optimal efficiency, with the MiniMA model as a successful demonstration.

DistillationMiniMAartificial-intelligence
0 likes · 7 min read
Unveiling the Law of Capacity Gap: Boosting Language Model Distillation Efficiency
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Sep 22, 2025 · Big Data

How Dataverse’s Notebook Supercharges Data+AI Development at Xiaohongshu

The article details Xiaohongshu’s Dataverse platform evolution into a Data+AI system, highlighting inefficiencies in algorithm and data‑science workflows, the introduction of an interactive notebook, comprehensive data lineage, AI‑coding assistance, and future DataAgent plans to automate data engineering tasks.

AI codingDataOpsdata lineage
0 likes · 21 min read
How Dataverse’s Notebook Supercharges Data+AI Development at Xiaohongshu
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Sep 19, 2025 · Artificial Intelligence

FireRedTTS-2: How the New Open-Source Model Achieves Human‑Like Multi‑Speaker Dialogue Synthesis

FireRedTTS-2, the latest open‑source dialogue TTS model from Xiaohongshu’s audio team, upgrades its speech tokenizer and text‑to‑speech architecture to enable low‑latency, per‑sentence generation, robust multi‑speaker switching, and natural prosody across multiple languages, outperforming rivals in both objective and subjective tests.

AI audiodialogue synthesismultilingual
0 likes · 10 min read
FireRedTTS-2: How the New Open-Source Model Achieves Human‑Like Multi‑Speaker Dialogue Synthesis
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Aug 27, 2025 · Databases

How RedHub Revolutionizes Database Access for Billion‑User Scale

RedHub is a next‑generation database proxy built by Xiaohongshu that unifies fragmented access methods, leverages PolarDB‑X for distributed SQL execution, and delivers high‑performance, highly available, and easily observable database connectivity, enabling seamless migration and advanced features for massive‑scale workloads.

Database ProxyDistributed SQLhigh availability
0 likes · 15 min read
How RedHub Revolutionizes Database Access for Billion‑User Scale
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Aug 19, 2025 · Artificial Intelligence

How Single Trajectory Distillation Boosts Diffusion Model Speed and Style Quality

The paper introduces Single Trajectory Distillation (STD), a novel training framework that aligns full PF‑ODE trajectories from a fixed noisy state, uses a Trajectory Bank to cut training cost, and adds an Asymmetric Adversarial Loss to markedly improve style consistency and aesthetic quality while accelerating image and video style‑transfer diffusion models.

AI accelerationDiffusion ModelsStyle Transfer
0 likes · 14 min read
How Single Trajectory Distillation Boosts Diffusion Model Speed and Style Quality
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Aug 18, 2025 · Artificial Intelligence

DynamicFace: Composable 3D Facial Priors for High‑Quality, Consistent Face Swaps

DynamicFace introduces a controllable face‑swapping framework that leverages composable 3D facial priors, dual‑stream identity injection, and a FusionTVO module to achieve superior image and video quality, identity preservation, and temporal consistency, outperforming existing state‑of‑the‑art methods on benchmark datasets.

3D facial priorsAIControllable Generation
0 likes · 13 min read
DynamicFace: Composable 3D Facial Priors for High‑Quality, Consistent Face Swaps
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Aug 13, 2025 · Backend Development

Boosting TLS Performance with Intel QAT and a Custom Keyless Architecture

This article details how XiaoHongShu's infrastructure team built a keyless architecture that offloads CPU‑intensive TLS private‑key signing to Intel QAT hardware, achieving massive HTTPS throughput gains, lower server costs, and valuable insights for similar high‑traffic TLS offload scenarios.

Intel QATKeyless ArchitecturePerformance
0 likes · 10 min read
Boosting TLS Performance with Intel QAT and a Custom Keyless Architecture
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Aug 7, 2025 · Databases

Achieving RPO=0: How XiaoHongShu’s Binlog Server Boosts MySQL Replication Speed and Data Consistency

This article explains how XiaoHongShu’s database team built a lightweight Binlog Server to accelerate semi‑synchronous MySQL replication beyond 300 MB/s, achieve RPO=0 data‑loss‑free failover, and improve high‑availability without manual intervention, backed by performance tests and detailed architecture diagrams.

Binlog ServerMySQLRPO=0
0 likes · 15 min read
Achieving RPO=0: How XiaoHongShu’s Binlog Server Boosts MySQL Replication Speed and Data Consistency
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Aug 6, 2025 · Artificial Intelligence

dots.vlm1: Open‑Source Multimodal Vision‑Language Model Near SOTA Performance

dots.vlm1, the first open‑source multimodal large model from Xiaohongshu hi‑lab, combines a 1.2‑billion‑parameter NaViT visual encoder with DeepSeek V3 LLM, achieving near‑state‑of‑the‑art visual understanding and reasoning while remaining competitive on text tasks, and is available on GitHub and HuggingFace.

AIVision-Languagedeep-learning
0 likes · 11 min read
dots.vlm1: Open‑Source Multimodal Vision‑Language Model Near SOTA Performance