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Autonomy and agency

Anthropic releases Claude Opus 4.6 for longer agentic tasks

Anthropic released Claude Opus 4.6 with longer agentic task persistence, agent teams, a beta one-million-token context, and broad API and cloud availability.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM56confidence 86/100

Why it moved the index

Long-horizon agentic work, parallel subagent use, and broad consumer, API, and cloud deployment materially expand consequential autonomy, while safety evaluations and controls moderate the effect.

Assessment history

  1. R1
    Toward 56 · confidence 86

    New dated launch story referencing the unchanged existing model revision 1.

    11 Aug 2026

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  1. DoomBench assesses “Anthropic releases Claude Opus 4.6 for longer agentic tasks” as evidence moving toward doom, with magnitude 56 and confidence 86 out of 100 in the autonomy and agency category.

  2. The DoomBench assessment of “Anthropic releases Claude Opus 4.6 for longer agentic tasks” is based on reporting from Anthropic and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “Anthropic releases Claude Opus 4.6 for longer agentic tasks” as follows: Anthropic released Claude Opus 4.6 with longer agentic task persistence, agent teams, a beta one-million-token context, and broad API and...

    https://www.doombench.com/news/anthropic-releases-claude-opus-4-6-for-longer-agentic-tasks-2026-02-05