DeepSeek Released May 28, 2025 Synced Apr 7, 2026

DeepSeek: R1 0528

May 28th update to the [original DeepSeek R1](/deepseek/deepseek-r1) Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active...

Tool useReasoning

Why it stands out

164K-token context window handles longer documents and multi-turn conversations without truncation.

Combines tool use with reasoning — a strong baseline for agentic and multi-step workflows.

$0.45/M input makes it practical for always-on agents, batch processing, or high-volume classification.

What to watch

Text-only input — image or audio workflows require a separate model in the pipeline.

No benchmark score currently tracked — evaluate using task-specific testing alongside pricing and capability data.

Release timeline

Tracked events for DeepSeek: R1 0528.

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release

DeepSeek: R1 0528 entered the tracked catalog

May 28, 2025

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Recent changes

LaunchMay 28

DeepSeek launched DeepSeek: R1 0528

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