YC Alumni News
Graduates of the Y Combinator program often go on to build some of the most influential companies in tech. This section follows those alumni, gathering news about their later funding rounds, product milestones, leadership changes, and long-term impact on the startup landscape.
Coverage ranges from late-stage giants announcing new products or public listings to lesser-known graduates quietly reaching profitability. You will also find stories about second-time founders returning with new ventures, alumni becoming investors themselves, and reunions of teams that first met during a batch.
Alumni trajectories matter because they show what happens long after the accelerator hype fades. Watching how graduated companies mature, stumble, or reinvent themselves offers some of the most honest evidence available about which early-stage bets actually compound into lasting businesses.
The OONI project is encouraging users to install its Probe application on desktop and mobile devices to help measure global internet censorship. By participating, individuals can contribute to the world's largest open dataset dedicated to tracking and documenting online restrictions.
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Brood War Bench
2026-09-20A new benchmark evaluates the strategic capabilities of Codex, Claude, and Grok by pitting them against each other in 171 matches of Brood War. The comprehensive study provides detailed results, match recordings, operational costs, and game-by-game analysis to determine which AI model excels in complex real-time strategy environments.
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Players have discovered that the challenging Dream Devourer optional boss in Chrono Trigger can be defeated by exploiting an integer overflow. This technical glitch allows gamers to bypass the complex mechanics of the DS and later versions of the classic game.
CommentsAlthough AI image generators are notorious for producing bizarre and flawed posters, designers are now overcoming these limitations through advanced prompting techniques and targeted editing tools. By combining human curation with these refined workflows, creators can successfully produce high-quality, visually striking artwork that proves AI can be a reliable asset in graphic design.
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Convai Innovations has developed a highly efficient non-autoregressive decision model capable of processing over 100 languages in a single forward pass on a GPU. The system completes this task in just 33 milliseconds by leveraging reinforcement learning techniques. Specifically, the model was built using RLCD and proper scoring rules to optimize its rapid performance.
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Researchers have developed ZK-JPEG, a cryptographic tool that uses zero-knowledge proofs to verify an image's authenticity even after it undergoes lossy JPEG compression or editing. Unlike previous authentication methods that break when images are altered or compressed, this system maintains valid digital signatures to help combat the spread of deepfakes. The fast and flexible tool seamlessly integrates various image transformations into the compression process, ensuring photos retain their verifiable provenance.
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The historical legal practice of deodands involved assigning a monetary value to objects that caused a person's death. Under this system, the offending item was forfeited and appraised for its financial worth. This assessed value was then sometimes distributed as compensation to the bereaved families of the victims.
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A newly published arXiv paper introduces compiler-style optimizations for 2D rasterization within the Skia graphics engine. The research establishes formal semantics for drawing operations to provide a rigorous foundation for these rendering processes. Ultimately, this compiler-inspired approach aims to significantly enhance the efficiency and performance of visual processing in applications that rely on Skia.
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Faster NumPy in the Browser
2026-09-20NumPy running in the browser via WebAssembly has received a major performance boost by linking OpenBLAS through Emscripten-forge. This update delivers significant speedups for matrix multiplication and other linear algebra operations directly within web environments.
CommentsA dedicated homepage is now available for Gerry and Sylvia Anderson's 1970 British sci-fi television series, "UFO". The website provides a comprehensive online resource for fans to explore all details regarding the classic science fiction program.
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This article provides a comparative analysis of the reflection capabilities in C++, Zig, and C3. It examines how each language implements compile-time and runtime introspection, outlining the unique advantages and limitations of their respective approaches.
CommentsMayday Mysteries
2026-09-20The tech sector is currently investigating a series of unexplained system outages and critical failures collectively referred to as the Mayday Mysteries. Engineers and cybersecurity experts are scrambling to identify the root cause of these widespread emergencies to prevent further network disruptions.
CommentsA new open-source roguelike dungeon crawler is receiving praise from the community for its nostalgic BBS-style aesthetic. Fans of classic games like NetHack are highly recommending the project to fellow retro gaming enthusiasts. Readers are celebrating the developer's dedication to keeping this traditional genre alive.
CommentsThe Lamentable Later Life of Lemmings
2026-09-20A recent retrospective examines the faded legacy of the classic 1991 puzzle game Lemmings, which initially showed promise as a perennial franchise before ultimately losing its cultural momentum. Much like the later trajectory of Angry Birds, the series spawned numerous sequels and special editions before quietly fading away. While developer DMA Design found massive later success with the Grand Theft Auto series, fans still fondly reminisce about the original game's enduring charm and iconic sound design.
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Suzanne Ciani's Buchla Cookbook
2026-09-20The online, open-access journal ECHO has published Suzanne Ciani's Buchla Cookbook, a new resource exploring the intersection of music, thought, and technology. This peer-reviewed publication shares the pioneering electronic musician's creative work and technical understanding of the iconic Buchla synthesizer.
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Tin: full-text search for Postgres
2026-09-20A new tool named TIN has been introduced to provide fast and full-featured full-text search indexing for PostgreSQL databases. This release aims to significantly enhance search performance and query capabilities for developers working with Postgres.
CommentsNew evidence indicates the possible existence of hidden chambers beyond Tutankhamun's tomb, sparking immense excitement among readers. The announcement has prompted many to revisit their childhood fascinations with ancient Egyptian history and archaeology.
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Rabbit Hole: Minimum L-seams
2026-09-20While attempting to write about the mathematical art of squarable numbers, the author explored a classic geometric tiling puzzle. This initial idea led to an extensive research rabbit hole, resulting in a deep dive into the complex calculations required to determine minimum L-seams.
CommentsNorth America's largest wildlife overpass has reduced animal-vehicle collisions by 91%, proving to be a highly cost-effective infrastructure investment. Despite a $15 million price tag, the project pays for itself in just two to three years by preventing thousands of dollars in damages and emergency costs per avoided crash.
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The James Webb Space Telescope has discovered mysterious little red dots across the universe, sparking a debate among astronomers about their true identity. While some researchers believe these objects are supermassive black holes, a bold new theory suggests they are actually extraordinarily massive stars.
CommentsThe HellGates challenge postmortem provides a detailed breakdown of a complex custom CPU gate-level hacking competition and the strategies used to solve it. The write-up explores the intricate logic gate architectures participants had to navigate, offering valuable insights for security researchers and hardware enthusiasts interested in low-level CPU design.
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Supabase (YC S20) Is Hiring for OrioleDB
2026-09-20Open-source backend platform Supabase is hiring an engineer to lead the development of OrioleDB, a next-generation storage engine for PostgreSQL. The fully remote role requires deep expertise in C programming and database internals to build new features, enhance system stability, and contribute directly to the upstream PostgreSQL core.
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In a recent opinion piece, the author argues that individuals should almost never use artificial intelligence for writing tasks. The article serves as a direct plea to prioritize human creativity and authentic expression over the convenience of automated text generation.
CommentsResearchers associated with Stanford Health Care have identified that two parallel neural ectoderm progenitors play a crucial role in the development of the brain. This discovery provides valuable new insights into early neurological formation. Ultimately, these findings could inform future diagnostic and treatment approaches for a wide range of brain disorders.
CommentsAuthenticity's Triumph
2026-09-20The author highlights the ongoing conflict between human creators and artificial intelligence, championing the intrinsic value of authentic, hand-crafted content. They argue that human efforts to beautify and improve remain essential in a digital landscape increasingly saturated with AI-generated material.
CommentsAndroid 17 QPR1 introduces new developer APIs without releasing them to the Android Open Source Project, marking the first time this has occurred since the Honeycomb release. Consequently, these new capabilities are currently exclusive to Google's Pixel OS and remain unavailable to other Android device manufacturers.
CommentsScience Is Open Software
2026-09-19A recent article argues that the principles and practices of modern scientific research are fundamentally synonymous with open-source software development. The author explores the reasons behind this equivalence and explains why this parallel is crucial for the future of innovation. The piece concludes by outlining actionable steps for readers to actively support and engage with open science.
CommentsSDCC – Small Device C Compiler
2026-09-19The Small Device C Compiler is being praised by the community as the best open source 8051 microcontroller compiler available. While users note that the software is quite buggy, they appreciate that it is completely free and often good enough for their development needs. The discussion also touched upon historical lore regarding Dallas Semiconductor and the Silicon Prairie tech scene.
CommentsCloudflare Quick Tunnels
2026-09-19Cloudflare has introduced Quick Tunnels, a new feature that allows developers to instantly expose local servers to the internet using a single command. The tool generates a public, encrypted URL on Cloudflare's edge network, simplifying the process of testing and sharing local web applications.
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Saving another 100TB of RAM
2026-09-19Cloudflare successfully reduced the RAM consumption of one of its Pingora-based services by 100TB through statistical optimization. This significant reduction highlights the company's ongoing efforts to trim resource usage and maximize infrastructure efficiency across its massive global network.
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