Chris Lattner

First look: Mojo 1.0 mixes Python and Rust spr.ly/6017B8887L

At many thousands of sessions/day, getting sub-second TTFT without sacrificing accuracy is hard. MAX delivers where others cannot, and paves the way to swap to other accelerators without added complexity. Check out how they did it: modular.com/blog/hippocrat…

Amazing to see what the @Hippocratic AI team is achieving with MAX. Their Polaris agent runs patient care conversations and needs to complete every turn in under 800ms, with safety models analyzing in parallel. 👇

AI agents in healthcare face tight constraints: latency can't exceed 800ms per turn, the first turn processes 10k tokens of context, and safety models analyze the conversation in parallel. Using our MAX framework, @hippocraticai keeps patient conversations instant (sub-second TTFT), hits aggressive performance targets without sacrificing model accuracy, and runs across accelerators as new hardware comes to market. A look at how regulated enterprises like Hippocratic AI use MAX in production for real-time patient conversations: modular.com/blog/hippocrat…

@ahrasheed @Modular This is incredible cool work Haroon! It's great to see the results you're achieving with Mojo🔥 vs older systems like SYCL and OpenCL.

GPU-powered robotics is having its LLVM moment - one kernel, every edge SoC, no vendor lock-in. Mojo builds on MLIR, SYCL compiles through LLVM, both trace back to 20+ years of @clattner_llvm's compiler work. Thank you, Chris. @Modular's blog: modular.com/blog/translati…

At @__automatika__ we ship EMOS (the EmbodiedOS), with the world's first autonomous robot navigation stack with cross-vendor GPGPU kernels (SYCL). Control loops upto 3,106x faster from CPU bound, dense mapping 1,850x. Same code, on NVIDIA + AMD + RPi. x.com/__automatika__…

@laybitcoin1 100%, we work with a lot of folks where latency completely changes the behavior of the product, e.g. here is one public case study: inworld.ai/blog/how-we-ma…

@clattner_llvm People obsess over the model. Real builders obsess over latency. 420ms TTFT changes the whole product.

I built a story and you can too! Check out "The Carbonated Crisis": inkwell.modular.com/shared/the-car… This is built by Modular's free demo, using lightning fast image and text generation to build interactive storybooks. It's a fun and interactive, check it out! 👇

Learn more about the technology that enables Inkwell to be dynamic and interactive on the modular blog: modular.com/blog/inkwell-w…

At inkwell.modular.com you can start from a stock story, or go fully custom. You get a "choose your own adventure" style of narrative flow to make it easy to build a narrative, along with incredible custom art. You can build a personalized avatar and share what you create

@g_kirira @softadastra Nice work!

I rebuilt the @softadastra docs homepage and took clear inspiration from Modular’s docs design. I really like the direction @clattner_llvm and the Modular team are pushing. This talk also shaped how I think about systems, compilers, and hardware/software co-design: ASPLOS Keynote: The Golden Age of Compiler Design in an Era of HW/SW Co-design youtu.be/4HgShra-KnY?si… Softadastra docs: docs.softadastra.com

Mojo 🔥 1.0 is in beta! Beta 1 marks the first step towards finalizing 1.0 later this year, which will bring a new level of language stability. The beta lands safe closures with a new capturing syntax, conditional trait conformance, and major variadic improvements. Plus, Mojo has its own home at mojolang.org.

Behind every iPhone. His compiler. Behind every Android. His compiler. Behind every NVIDIA GPU. His compiler. One American. Billions of devices. 🤯 Meet Chris Lattner 🇺🇸 > Started LLVM in late 2000 at UIUC as part of his graduate research. > LLVM is a compiler infrastructure ~ the software that turns code into machine instructions. > Apple hired him in 2005. He stayed 12 years. > His toolchain now powers iPhone, iPad, Mac, PlayStation, Android NDK, and NVIDIA's CUDA. > Also built Clang ~ the C/C++ compiler used by Google, Microsoft, and Sony. > Built Swift in secret. Nights and weekends. While leading a 40+ person Apple team by day. > Apple leadership was skeptical. He shipped it anyway. 🚀 > Swift now powers the vast majority of iOS apps on earth. > Won the ACM Software System Award ~ same as Unix, Java, and TCP/IP. > 2017 ~ Tesla VP of Autopilot. Worked in Elon's orbit. Left in 5 months. > Joined Google Brain. Built MLIR ~ the compiler infrastructure behind TensorFlow. > 2020 ~ joined SiFive to build open-source chips competing with Intel and ARM. > 2022 ~ left Big Tech entirely. Founded Modular AI. > Built Mojo ~ a new AI language that runs Python up to 35,000x faster. > LLVM, Clang, Swift — all open-source. Mojo follows in 2026. > Targeting NVIDIA's $4.8 trillion CUDA dominance. Raised $380M. Valued at $1.6B. > Still writes code. Still answers GitHub issues himself. He spent over 25 years building the compilers Big Tech is built on. Now he's openly building the one that could break NVIDIA. What a mind. Compiler GOAT. 🧠🐐

@AIatAMD @danielhanchen @UnslothAI @JunchenJiang @tensormesh @RyanLeeMiniMax @BanghuaZ @thu_yushengsu @radixark @Modular @Stanford Thank you for a great event, we appreciate AMDs strong partnership!

We want to extend a huge thank you to our #AIDevDay speakers and workshop hosts! 🤝 We are committed to building with you. @danielhanchen, @UnslothAI @JunchenJiang, @tensormesh @RyanLeeMiniMax @BanghuaZ, @thu_yushengsu, @RadixArk @clattner_llvm, @Modular @Stanford CS students Natalia Pahlavan, Laasya Konidala, Annmaria Antony @TCarambat, @AnythingLLM @gaeldelalleau, Augustin Verneuil, @Kog__AI Kevin Cochrane, @Vultr @QuentinAnthon15, @ZyphraAI

Highlights from @AMD AI DevDay 📷 Great to see so many developers at the booth and our reception the night before, and even better to watch their reactions when they saw MAX and Mojo 🔥 in action.

@MERGE_EGO @Modular I'd love for LLVM to be way better, can I check out your compiler to see how you solved this problem?

@clattner_llvm @Modular Is that why llvm is a cluster fuck of spaghetti code with dependency hierarchies so large and entwined you need an 8k 40 inch monitor to even visualise?

Love this interview with Barbara, architect of CLU, Liskov Substitution Principle, and many others. CLU was a major influence on Swift's design and her fundamental work shaped many other languages. Her focus on @Modular design is right on, +1 for it being the fundamental unit of composition, abstraction and scale.

Roll call! Who's here for AMD #AIDevDay?

@DeonMen It was wonderful to meet you Deon!

Just got to amd dev day just met the ceo of modular @clattner_llvm pretty cool speech

@hargup13 It was wonderful to meet you Harsh; I look forward to seeing your work on agentic coding and Lean combine with the powers of Mojo🔥!

Great meeting Chris Lattner at the AMD Dev Day! Thanks tor the great talk and excited about Mojo v1.0

@lemire @filpizlo No - it's a huge security problem. Try passing one of those functions to qsort and look at the code it generates.

@filpizlo Does any serious software use this extension ? I tend to shy away from extensions when coding in C.

When programming in C with GCC, you can declare functions inside functions. To my knowledge, it only works with GCC.