Deepseek ships improved V4 Pro, open-sources its agent software, and raises API prices

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Deepseek has moved its flagship V4-Pro out of the testing phase and released its agent software, Harness v0.1, under the MIT license.

API prices are going up at the same time, with cache hits jumping to six times their current cost.

For agent workflows that repeatedly read the same files, that's the biggest price increase in the transition.


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