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FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
Extism
OpenCV
TensorFlow
CImg
OpenGL
PyTorch
MATLAB
Application and Data, Languages & Frameworks, and Language Extensions
Which is more popular?
Based on our record, FastAPI seems to be more popular. It has been mentioned 312 times since March 2021.
Website, pricing, platforms and company facts side by side.
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OCL
OpenCL
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| Website | fastapi.tiangolo.com | en.wikipedia.org |
| Pricing | — | |
| Company | Startup from Colombia | — |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of OpenCL yet.
Walkthroughs and reviews on video.
FastAPI from the ground up
More videos
Episode 1: What is OpenCL™?
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using FastAPI and OpenCL. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding. The...
FastAPI, as the name hints, is a swift mover. Built on Starlette, it’s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now that’s something.
Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack...
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Recommendations tracked on public social media and blogs since March 2021.

I used FastAPI, a Python framework built specifically for creating APIs quickly, with automatic validation and interactive documentation baked in. - Source: dev.to / about 1 month ago
The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware. - Source: dev.to / 4 months ago
We had a feature in production where a single user request could run for five-plus minutes — fetch documents, chunk them, hit an LLM per chunk, synthesize a final answer. We did the obvious thing first: a FastAPI handler that ran the... - Source: dev.to / 5 months ago
Tracking OpenCL since Mar 2021.
When comparing FastAPI and OpenCL, you can also consider the following products.

a microframework for Python based on Werkzeug, Jinja 2 and good intentions.
Compare Flask to FastAPI or OpenCL:

Extism is the open source, universal plug-in system. Extend all the software everywhere! Powered by WebAssembly.
Compare Extism to FastAPI or OpenCL:

Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Compare ExpressJS to FastAPI or OpenCL:



TensorFlow is an open-source machine learning framework designed and published by Google. It tracks data flow graphs over time. Nodes in the data flow graphs represent machine learning algorithms. Read more about TensorFlow.
Compare TensorFlow to FastAPI or OpenCL: