DeepSeek R1-0528Open Weight

Released

DeepSeek R1-0528 is an AI model released by DeepSeek on Wednesday, May 28 2025, 65 days after DeepSeek V3-0324. It is an open-weight model — the trained weights are available to download and run. Benchmark results (shown below) cover BullshitBench v2.

Available from

DeepInfra$0.50$2.15160Kfp4
SiliconFlow$0.50$2.18160Kfp8
StreamLake$0.571$2.286128K
Novita$0.70$2.50160Kfp8
USD per 1M tokens

Benchmarks

BullshitBench v2
8%
#71 of 74

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Frequently asked questions

DeepSeek R1-0528 was released by DeepSeek on Wednesday, May 28 2025.

DeepSeek R1-0528 was built by DeepSeek. Chinese AI lab known for efficient, open-weight models. Gained attention for strong performance at lower cost.

DeepSeek R1-0528 reports 1 tracked benchmark score — BullshitBench v2: 8%. Scores are the figures published at release by DeepSeek.

Partly. DeepSeek R1-0528 is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.

DeepSeek's previous tracked release was DeepSeek V3-0324 on Mar 24 2025, 65 days earlier. It was followed by DeepSeek V3.1 on Aug 21 2025.

All DeepSeek releases

22 tracked