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Mojo Lang - Tomorrow's High Performance Python? (with Chris Lattner)

Developer Voices
Interviews
YouTube
1 HN user recommended this interview1 month2024–2025 score 1
Years with an HN recommendation, 2007–2026

Pointed to as a general-purpose interview on Mojo's goals and design from its creator.

Developer Voices interviews Chris Lattner about Mojo, a Python-compatible language aimed at CPU/GPU performance built on LLVM and MLIR. It covers performance features, the type system and why Mojo uses Python syntax.

“Here's an interview with Chris Lattner discussing Mojo in much more generalized terms” (HN, 2024)

1 recommendations · 2 citations · Interviews · intermediate · partly dated

3 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@GeekyBear Jun 2024 Recommends
on HN thread Deep Dive into Ownership in Mojo
Some more generalized information to get started with: MLIR was spearheaded by the same person who created LLVM, to add additional features that Google needed to build compilers for its in-house hardware AI accelerators. Mojo is a new language that takes advantage of the new features enabled by MLIR, in the same way that Swift took advantage of the features previously enabled by LLVM. Here's an interview with Chris Lattner discussing Mojo in much more generalized terms: [this video]
General interview with Chris Lattner about Mojo

Citations, criticism and jokes

@adeptima May 2024 Cites it
on HN thread Reproducing GPT-2 in llm.c
Andrej Karpathy karpathy is a magician! But being the coolest kid on the block with pure C/CUDA implementation is not enough [link] Studying a baby Llama 2 model source code in pure Mojo is the next level [link] [link] Mojo Lang - Tomorrow's High Performance Python? (with Chris Lattner) [this video] Andrej Karpathy and Chris Lattner collab is on my wishlist ;)
Interview with Chris Lattner on Mojo
@FrustratedMonky Sep 2025 Cites it
on HN thread Alibaba's new AI chip: Key specifications comparable to H20
Read more
From Docs, [link] "This is 100% compatible because we use the CPython runtime without modification for full compatibility with existing Python libraries." At this point you need to either explain your objection, or just admit you are a troll. You haven't actually at any point in this exchange offered any actual argument beyond 'duh, you're wrong'. I'd be ok if you actually pointed to something like 'well technically, the mojo parts are compiled differently', or something. You say you worked there, but you're not even looking at their website. Creator Chris Lattner discussing why they used Python. [this video] Start at minute 12. "Mojo is a very extended version of Python".
Lattner explains why Mojo uses Python, from minute 12

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