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Tom’s Hardware
Tom’s Hardware
Technology
Les Pounder

Developer creates 'conversational AI' that can run in 64kb of RAM on 1976 Zilog Z80 CPU-powered system — features a tiny chatbot and a 20-question guessing game

A Z80 CPU.

The venerable Zilog Z80 CPU has been around since 1976, and it has powered everything from calculators and home computers to arcade cabinets. But the 8-bit microprocessor isn't exactly a powerful CPU compared to what we use today. That said, developer HarryR has created Z80-μLM, a working "AI" for the well-respected microprocessor. HarryR confirms that it won't pass the Turing test, but it is a bit of fun. And no, the price of Z80s will not be impacted by AI.

According to the readme file, "Z80-μLM is a 'conversational AI' that generates short character-by-character sequences, with quantization-aware training (QAT) to run on a Z80 processor with 64kb of RAM." HarryR's goal is to see how small an AI project can go, while still having a "personality". Can the AI be trained and fine-tuned? It seems that HarryR has done it in just 40KB, including inference, weights, and chat style user interface.

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