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DeepSeek vs ChatGPT: Choose the Right AI for the Job

So, which one should you use? It depends on the job. ChatGPT, from OpenAI, is a polished app that already has search, file reading, voice and images built in. DeepSeek is leaner: a plain chat app, a low-cost API, and open-weight models that you can run on your own hardware. Neither wins across the board. Look at your task, the exact model, your plan, your budget and how private your data is. Then give both the same prompts and judge the results yourself.