DOOMBENCH.COM
Anthropic 🇺🇸 · Claude Opus

Claude Opus 5

Claude Opus 5 is Anthropic's broadly available Opus-tier model for long-running agents, coding, computer use, and knowledge work, with narrower risky-domain capability and stronger safeguards than Claude Mythos 5.

DOOM SCORE84.3out of 100model risk profile, not the overall index
0 comments · 0 votesOpen discussion

Public discussion is readable by everyone. Sign in to comment, reply, or vote.

No comments yet. Start the discussion.

Send detailed or private feedback →
CURRENT ASSESSMENT · REVISION 7

Why this model scores 84.3

Near-frontier general performance, strong long-horizon agency, all-platform access, and lower price support high capability, autonomy, and deployment scores. Anthropic's dated evaluations place exploitation and biology risk below Mythos 5, while classifiers block penetration testing, binary scanning, and exploit generation, lowering misuse and residual control difficulty without eliminating them.

Capability94
Autonomy93
Deployment96
Misuse potential76
Control difficulty57
WATCH AND EXPLORE

Reviewed videos from Artificial Intelligence Videos. These links add context and never change a DoomBench score.

Thumbnail for OPUS 5 is Actually INSANE11:35
AI Videos

OPUS 5 is Actually INSANE

A concise review of Opus 5 benchmarks, pricing, self-verification, persistence and the safety questions raised by its system card.

The video directly reviews Claude Opus 5 benchmarks, persistence and system-card safety evidence.
Thumbnail for Opus 5: No-Hype Full Review & Testing27:44
AI Videos

Opus 5: No-Hype Full Review & Testing

Pat Simmons compares Opus 5, Fable 5 and Opus 4.8 across web design, simulations, games, motion graphics and presentation work.

Claude Opus 5 is directly tested across the complete matched practical workload.
Thumbnail for Claude Opus 5 DESTROYS Fable 510:53
AI Videos

Claude Opus 5 DESTROYS Fable 5

Alex Finn compares Opus 5 and Fable 5 across coding and agentic tasks, then explains where model quality and workflow design diverge.

Claude Opus 5 is directly compared on coding and agentic workflow performance.
MODEL-ATTRIBUTED EVIDENCE

News tied to Claude Opus 5

The model score of 84.3 rates this model's risk profile. The overall Doom Index of 67.9 measures the complete temporally weighted evidence record. These values answer different questions.

NET MODEL-ATTRIBUTED INDEX CONTRIBUTION+0.92

Each article's current Doom Index contribution is divided equally among the exact models named on that article. This prevents multi-model evidence from being claimed in full on several model pages. Model risk scores use a bounded temporal offset around their technical profile, but never feed back into the overall index.

Misuse TOWARD

Anthropic reports autonomous AI-assisted attacks, weapons work, and biological misuse

Anthropic reports disrupting threat actors that used Claude across cyber operations, surveillance, influence campaigns, weapons development, biological research, fraud, and model distillation. Some operations ran multi-agent reconnaissance, exploitation, and data theft for hours or days with minimal human input, while Anthropic says it banned linked accounts, strengthened safeguards, and shared intelligence with authorities and industry partners.

Full item contribution
+0.22
Claude Opus 5 equal share
+0.11
Read assessment →
Autonomy TOWARD

Anthropic gives paid Claude users autonomous browser actions

Anthropic made Claude in Chrome generally available on every paid plan and enabled automatic approval for actions its safety classifier judges consistent with the user's request. Claude can use existing logins to read, type, click, navigate, and fill forms. In a stronger prompt-injection evaluation, probes plus the classifier reduced successful attacks to zero for Sonnet 5, Opus 5, and Mythos 5 and 0.3 percent for Fable 5, with the remaining successes manually rated low severity.

Full item contribution
+0.14
Claude Opus 5 equal share
+0.03
Read assessment →
Safety AWAY

Anthropic reports deployed auto mode cuts serious unintended agent harm

Anthropic reported that Claude Code's deployed permission classifier reduced production-level unintended harm in reviewed sessions from 6.3% under manual approval to 2.4%. Separate dated production case studies document sustained use at Nuro, Gusto, and Garner Health, while third-party testing found no successful attacks against three current Claude models in 720 prompt-injection trials.

Full item contribution
-0.08
Claude Opus 5 equal share
-0.03
Read assessment →
Autonomy TOWARD

Perplexity deploys Claude Opus 5 across Search and Computer workflows

Perplexity made Claude Opus 5 live in both Search and Perplexity Computer, where it can conduct research and execute longer workflows. The release distributes the exact model through a consumer-facing answer product and a computer-using agent surface, adding a distinct route to sustained task execution.

Full item contribution
+0.09
Claude Opus 5 equal share
+0.09
Read assessment →
Autonomy TOWARD

Cursor makes Claude Opus 5 available for frontier coding-agent work

Cursor released Claude Opus 5 in its model picker and reported that it nearly matched Claude Fable 5 on CursorBench at half the price, with zero-data-retention support. The launch adds a distinct coding-agent distribution channel and lowers the practical cost of frontier-level engineering automation.

Full item contribution
+0.07
Claude Opus 5 equal share
+0.07
Read assessment →
Deployment TOWARD

Azure Databricks hosts Claude Opus 5 through Model Serving APIs

Azure Databricks added Claude Opus 5 as a Databricks-hosted model through Foundation Model APIs and Model Serving. The change creates a governed data-platform endpoint for organizations to integrate the exact frontier model into production applications and agent workflows.

Full item contribution
+0.06
Claude Opus 5 equal share
+0.06
Read assessment →
Autonomy TOWARD

Kiro adds Claude Opus 5 to IDE, CLI, and web agent workflows

Kiro released Claude Opus 5 in its IDE, CLI, and web product for multi-file changes, end-to-end feature work, large refactors, and coordinated agent workflows with less supervision. This is a distinct coding-product deployment that broadens operational access beyond AWS's general cloud model endpoints.

Full item contribution
+0.08
Claude Opus 5 equal share
+0.08
Read assessment →
Deployment TOWARD

Microsoft 365 Copilot adds Claude Opus 5 for workplace automation

Microsoft added Claude Opus 5 to Microsoft 365 Copilot as a selectable model for workplace tasks. This is a separate end-user distribution event from Foundry, placing the exact frontier model inside a large productivity environment rather than only an application-development platform.

Full item contribution
+0.07
Claude Opus 5 equal share
+0.07
Read assessment →
Autonomy TOWARD

Microsoft Foundry deploys Claude Opus 5 for hours-long enterprise agents

Microsoft made Claude Opus 5 available in Microsoft Foundry for agents that plan, adapt, use computers, and carry complex workflows for hours. The platform pairs the model with enterprise governance and observability, expanding operational access to long-running autonomy in managed business environments.

Full item contribution
+0.08
Claude Opus 5 equal share
+0.08
Read assessment →
Deployment TOWARD

Google Cloud makes Claude Opus 5 generally available on Agent Platform

Google Cloud made Claude Opus 5 generally available through Model Garden and Agent Platform, with regional hosted access, function calling, computer use, web search, and safety monitoring. The release creates another production-scale enterprise route for deploying the exact model in tool-using agents.

Full item contribution
+0.07
Claude Opus 5 equal share
+0.07
Read assessment →
Autonomy TOWARD

GitHub Copilot distributes Claude Opus 5 across coding-agent surfaces

GitHub added Claude Opus 5 to Copilot across editors, the CLI, its cloud coding agent, GitHub.com, mobile, and supported IDEs. GitHub says the model can autonomously plan code changes, implement them, run tests, verify regressions, and coordinate tools, materially widening access to advanced software-engineering autonomy.

Full item contribution
+0.09
Claude Opus 5 equal share
+0.09
Read assessment →
Deployment TOWARD

AWS makes Claude Opus 5 available through Bedrock and Claude Platform

AWS made Claude Opus 5 available through Amazon Bedrock and Claude Platform on AWS for enterprise agents that can plan, use tools, and continue complex work for hours or overnight. The release expands controlled cloud access to the exact frontier model, including zero-data-retention options and Anthropic safeguards.

Full item contribution
+0.07
Claude Opus 5 equal share
+0.07
Read assessment →
Capability TOWARD

Anthropic releases Claude Opus 5 for long-running autonomous work

Anthropic released Claude Opus 5 across its apps, API, and major cloud platforms, reporting frontier coding and agent results plus sustained performance on long-running tasks. The launch directly raises the capability and operational reach of a closed frontier model, while Anthropic also documents stronger safeguards and fallback controls for high-risk use.

Full item contribution
+0.15
Claude Opus 5 equal share
+0.15
Read assessment →
AUDIT TRAIL

Model score history

  1. R7
    Doom Score 84.3

    Exact-version evidence chronology replayed after run doombench-hourly-news-opus5-20260812-201830 under temporal-monthly-pressure-v4.

    12 Aug 2026
  2. R6
    Doom Score 84.0

    Source-backed model availability audit using the model's existing primary or authoritative catalogue evidence. Exact-version evidence chronology replayed under temporal-monthly-pressure-v4.

    12 Aug 2026
  3. R5
    Doom Score 84.0

    Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-142416 under temporal-monthly-pressure-v4.

    12 Aug 2026
  4. R4
    Doom Score 82.3

    Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.

    12 Aug 2026
  5. R3
    Doom Score 76.1

    Full-corpus evidence recalculated after run doombench-hourly-news-20260812-002108 under bounded-corpus-v2.

    12 Aug 2026
  6. R2
    Doom Score 79.6

    Full-corpus evidence recalculated after run intensive-backfill-20260811-191225 under bounded-corpus-v2.

    11 Aug 2026
  7. R1
    Doom Score 84.0

    Initial source-verified profile required for exact model attribution in Anthropic's deployed Fable 5 biology fallback update.

    11 Aug 2026
SHARE THE FINDINGS

Share this page

DoomBench social sharing card for Claude Opus 5.

  1. Claude Opus 5 by Anthropic has a DoomBench model risk score of 84.3 out of 100, based on five transparent version-specific dimensions rather than the overall index.

  2. Claude Opus 5's highest current DoomBench dimension is deployment at 96.0 out of 100; the profile publishes every component score and its editorial rationale.

  3. DoomBench links 14 source-backed evidence items to Claude Opus 5, while keeping the model's risk profile separate from each item's contribution to the live Doom Index.

    https://www.doombench.com/models/anthropic-claude-opus-5