“Modular is Mojo's first customer. Like we have more Mojo code in our repository than any other language. And it's open source. Like, and we open source like 650,000 lines of Mojo code.”
quote is from the automated transcript, cleaned for reading:
filler sounds and stutters are removed, nothing is rephrased. names can be misheard
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More from Chris Lattner
Opinion
Lattner: Modular MAX is 'more open source' than vLLM
“This thing's more open source than VLM because VLM depends on all these crazy binary CUDA kernels and stuff like this that are just opaque blobs from NVIDIA, right?”
Chris LattnerJun 13, 2025▶ 12:25The Shape of Compute (Chris Lattner of Modular)
Opinion
Lattner says C++ 'sucks' for modern accelerated compute
“Let me be the first to tell you, and I can say this now, I feel comfortable saying this, that C++ sucks.”
Chris LattnerJun 13, 2025▶ 13:38The Shape of Compute (Chris Lattner of Modular)
Opinion
Lattner calls vLLM a 'hot mess' due to too many stakeholders
“VLM seems much more like a massive community with a lot of stakeholders, a lot of stuff going on, and it's kind of a hot mess.”
Chris LattnerJun 13, 2025▶ 23:52The Shape of Compute (Chris Lattner of Modular)
AssertionNot checkable as stated
Lattner says Mojo is 10,000x faster than Python and beats Rust
“Mojo is not just a little faster than Python, it's faster than Rust. So it's like tens of thousands of times faster than Python, and it's in the Python family.”
Chris LattnerJun 13, 2025▶ 15:29The Shape of Compute (Chris Lattner of Modular)
AssertionNot publicly verifiable
Modular's Mojo FlashAttention beats Tri Dao's reference implementation
“We're beating the tree DAO reference implementation that everybody uses, for example, right? Written fully in Mojo. Again, all of our, GPU kernels are written in Mojo. You can go see the history of the team building this, and it was done in just a few weeks, r…”
Chris LattnerJun 13, 2025▶ 30:59The Shape of Compute (Chris Lattner of Modular)
Opinion
PyTorch democratized model training, but AI inference remains undemocratized
“And so things like PyTorch came on the scene and I think PyTorch gets all credit for democratizing model training, right? It's taught to pretty much every computer science student that graduates. That's a huge deal, but nobody democratized inference. Inference…”
Chris LattnerJun 13, 2025▶ 35:44The Shape of Compute (Chris Lattner of Modular)
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