DeepSeek
A reasoning-focused assistant whose open-weight models undercut the commercial APIs by an order of magnitude.
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About DeepSeek
DeepSeek built its reputation on releasing capable reasoning models with open weights and pricing its API far below the incumbents. The chat interface shows its reasoning trace, which is genuinely useful when checking whether an answer was reached for the right reasons. For developers the appeal is cost: workloads that are uneconomic on frontier APIs are often affordable here. The trade-off is that the hosted service is subject to Chinese jurisdiction, which some organisations cannot accept.
What We Love
- ✓Dramatically cheaper than comparable APIs
- ✓Weights can be run on your own hardware
- ✓Competitive at structured reasoning
Limitations
- ✗Hosted service raises data-jurisdiction questions
- ✗Less polished interface
- ✗Content restrictions on some topics
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