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DeepSeek-V4: a million-token context that agents can actually use

1M tokens. DeepSeek-V4 isn't just longer—it's the first context window agents can actually use without hallucinating.

Illustration of independent geometric mechanisms passing paper tasks along branching amber tracks.
AI agents and the coordination of work.AI illustration by KeyNews
The KeyNews take

Why it matters

DeepSeek-V4's million-token context with genuine agent reasoning capability represents a meaningful capability leap over prior context-window claims, potentially reshaping competitive benchmarks and enterprise deployment strategies for agentic AI systems.

The key facts

4 to know
  1. 1 million token context window

  2. Agent-usable context (not theoretical padding)

  3. Published via Hugging Face blog (April 24, 2026)

  4. Positions against prior context-window claims that lacked practical agent deployment validation

Go to the source

Hugging Face Bloghuggingface.co

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