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DeepSeek is the open-source disruptor of the chatbot market: reasoning, math and coding performance that trades blows with the paid frontier models, in an app and web experience with no paywall at all. Its open weights and famously cheap API made it the default budget choice for developers worldwide.
R-series models show their step-by-step thinking on hard problems.
No paywall on the app or web — the outlier among frontier chatbots.
Run it yourself or fine-tune it; the models are downloadable.
An order of magnitude cheaper than Western frontier APIs.
Top chatgpt & chatbots tools to compare against DeepSeek.
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The conversational AI that started the revolution.
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Thoughtful AI for serious work and long documents.
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Moonshot's frontier open model with a 1M-token brain.
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Google's multimodal AI woven into your workspace.
Reviews, comparisons and how-tos that feature DeepSeek.
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Alternatives and complements worth a look.
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Alibaba's open-weight family — top capability at the lowest price.
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Europe's frontier AI — open weights, strong privacy.
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Put tools side by side and compare features, pricing and ratings.