DeepSeek
Open-weight modelsA family of open-weight models known for strong reasoning and coding at a low cost to run.
DeepSeek's open-weight models drew attention for delivering frontier-level reasoning and coding performance far more efficiently than expected. The weights are open, and a first-party API exists for teams that prefer hosted.
The efficiency is the headline: strong results without frontier-scale compute changes the build-versus-buy maths for self-hosting.
Where it's ideally used
A compelling pick when you want strong reasoning or coding from a self-hosted model without a large compute budget.
Where it doesn't fit
Provenance and governance review matter here — confirm where weights or the hosted API run against your own policy.