BustAPI
A Python framework with a Rust core claiming 50x Flask speed
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Hi HN,We’ve all accepted the "Python tax"—you trade execution speed for developer happiness. But what if that trade-off was a thing of the past?I just came across BustAPI, and it’s basically a "cheat code" for Python web services. It’s not just another wrapper; it’s a hybrid engine that embeds a Rust (Actix-Web) core directly into the Python runtime.Is this the end of the "slow Python" era? The benchmarks are pretty shocking. I’d love to see someone stress-test this against a production-grade Go or Node.js setup.Repo: https://github.com/GrandpaEJ/BustAPI Benchmarks: https://github.com/GrandpaEJ/BustAPI/tree/main/benchmarks
HN · launched Dec 21, 2025 · 5 upvotes (top 90%) · 0 views
Niche: software development frameworks · 154 launches, 2 in the last 7 days ▼ -89% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 154 launches in software development frameworks →
Could you build this?
No Developing a custom web framework with a Rust core that significantly outperforms established Python servers requires deep systems engineering, low-level HTTP parsing, and PyO3/GIL memory management.
What it would actually take: A production implementation requires an asynchronous Rust core built on Tokio and Hyper exposed to Python through PyO3 or C-extension bindings, handling request parsing and socket pooling natively. The primary bottleneck is achieving safe, zero-copy data transfer and efficient GIL synchronization while maintaining complete ASGI/WSGI specification compatibility.
Discussion
3 comments analyzed.
Competitors mentioned: Flask, FastAPI, Catzilla
Concerns raised: AI-written post and project authenticity, Unfair benchmark comparison (4 vs 8 workers), Benchmarks not reproducible by users
Competitors
Other products that read as similar to this one : 282 launches clear the similarity bar, closest 8 shown.
Attention rank: #275 of 283 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 50 days after the earliest competitor.
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