Developed by Google Brain, TensorFlow is a comprehensive open‑source framework for building and deploying machine learning models. It provides a rich ecosystem of tools — from TensorBoard visualizations and TensorFlow Serving for model deployment to TensorFlow Lite for mobile — and supports training on CPUs, GPUs and TPUs【946047525634740†L167-L174】【946047525634740†L190-L196】.

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Hugging Face hosts a vast open-source Model Hub, offering thousands of pre‑trained transformers and other AI models, along with easy‑to‑use libraries like Transformers, Datasets and Tokenizers【169727132412843†L78-L109】.

OpenAI’s API provides access to state‑of‑the‑art generative models like GPT‑4 and DALL‑E, making it easy to add natural language, code generation and image creation capabilities to your applications【347581319314864†L68-L94】.

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