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Capability gains

Anthropic releases Claude Opus 4.7 for long-running agentic work

Claude Opus 4.7 became generally available across Claude products, the API, and major cloud platforms with improved long-running task execution, self-verification, and software engineering.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM48confidence 87/100

Why it moved the index

Broad distribution of stronger long-running, self-checking agentic work advances consequential autonomy, while developer-reported evaluations and improved safeguards limit the assessment.

Assessment history

  1. R1
    Toward 48 · confidence 87

    New exact-version launch with verified autonomy, deployment, and safeguard evidence.

    11 Aug 2026

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  1. DoomBench assesses “Anthropic releases Claude Opus 4.7 for long-running agentic work” as evidence moving toward doom, with magnitude 48 and confidence 87 out of 100 in the capability gains category.

  2. The DoomBench assessment of “Anthropic releases Claude Opus 4.7 for long-running agentic work” is based on reporting from Anthropic and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “Anthropic releases Claude Opus 4.7 for long-running agentic work” as follows: Claude Opus 4.7 became generally available across Claude products, the API, and major cloud platforms with improved long-running task...

    https://www.doombench.com/news/anthropic-releases-claude-opus-4-7-for-long-running-agentic-work-2026-04-16