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European Capture the Flag on Privacy-Preserving Database SystemsOblivious and TikTok announce PET ARENA, a CTF competition where participants design redteaming exercises against protections like differential privacy. Top prize: €4000. Open to students, researchers, and engineers based in Europe.

TikTok x IMDA Dev Day: Building with Singapore's Tech CommunityWe teamed up with Singapore's tech community at Developer Discovery Day to explore AI and cloud innovation, share TikTok's developer tools, and support hands-on learning and collaboration.

Introducing Knit: Zero-Overhead Dependency InjectionAs the TikTok app continued to grow, we began to encounter challenges that prompted us to rethink our approach to dependency injection.

TikTok saves up to 50% on costs with ~50 lines of code with Prompt CachingLearn how TikTok reduced inference costs by up to 50% using a lightweight prompt caching strategy implemented in just ~50 lines of code.

I ❤️ PETs Webinar: Exploring the Frontiers of AI, Identity and Privacy Through Open InnovationOn‑demand recap of the I ❤️ PETs half‑day webinar exploring privacy‑enhancing technologies for ethical AI, identity and trust.

LF AI & Data Day Singapore 2025: "Agent for SWE" RecapRecap of LF AI & Data Day Singapore 2025 where the open source AI community explored the "Agent for SWE" theme, covering code optimization, AI infrastructure insights.

ManaTEE: Enabling Verifiable AI Transparency via Confidential ComputingManaTEE securely evaluates AI models inside TEEs, preserving confidentiality while providing cryptographically verifiable results. Prove fairness and accuracy without exposing your model, ensuring trust between providers, partners, and regulators.

PrivacyGo Joins IMDA PET Sandbox for Privacy-Preserving Ad MeasurementTikTok's open source PrivacyGo joins Singapore's IMDA PET Sandbox, enabling regulator-reviewed, privacy-preserving analytics with PETs like MPC and Differential Privacy for secure, compliant data collaboration.

Transparency by Design: Why Open Source AI Matters for PrivacyAn overview of how open source AI supports algorithmic transparency, auditing, and regulatory compliance, highlighting its role in enabling oversight and aligning with emerging legal frameworks.

TikTok and the Linux Foundation PET Initiative: Birds of a Feather at Open Source Summit North America 2025TikTok shares insights on PETs and open-source privacy tools from OSS North America 2025.

TikTok Sans: Now a Free and Open-Source FontInspired by creators and made for creators, the font you've seen all over TikTok is now free for everyone.

At UC Berkeley, a Hands-On Push for Ethical, Open AI DevelopmentHands-on code lab at UC Berkeley showcasing TikTok’s open-source AI projects (OPEA, InfiniEdge) and advancing ethical AI development in collaboration with local researchers.

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