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Week of November 9, 2026

Anthropic's 5.2 Models Post Their Biggest Gains on Coding and Robotics Tests

Fable 5.2 more than doubled its robotics simulation score and lifted its FrontierCode 2.0 result by about 17 points over Fable 5.1, while Mythos 5.2 posted smaller gains on security and biology tests.

  • 5.1 model
  • 5.2 model
Anthropic's 5.2 Models Post Their Biggest Gains on Coding and Robotics Tests0%25%50%75%100%Fable: RoboDojo Sim+135%Fable: FrontierCode2.0+52%Mythos:CyScenarioBench+24%Mythos: CVERediscovery+14%Mythos: 24-hour binderdesign+8%
Benchmark scores reported by Anthropic for Claude Fable and Mythos 5.1 versus 5.2. FrontierCode 2.0 at xhigh effort; RoboDojo Sim is an internal Anthropic test. Labels show relative change. Source: Anthropic, via Let's Data Science and TestingCatalog
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5.1 model5.2 model
Fable: RoboDojo Sim27.6%64.9%
Fable: FrontierCode 2.032.4%49.1%
Mythos: CyScenarioBench61.7%76.3%
Mythos: CVE Rediscovery78.3%89.6%
Mythos: 24-hour binder design79.1%85.1%
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Week of November 2, 2026

AI Stocks Bounce Friday, Capping Wall Street's Worst Week Since 2025

CoreWeave, Micron and Nvidia led a Friday rebound, but the S&P 500 still fell 2.7% for the week on midterm data center fears.

AI Stocks Bounce Friday, Capping Wall Street's Worst Week Since 2025Nasdaq+1.1%S&P 500+0.3%Dow−0.5%Nvidia+2.8%CoreWeave+6.3%Micron+5.1%
One-day change, Friday, November 6, 2026. Source: The Associated Press (via AsiaOne)
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Friday, Nov 6 move
Nasdaq1.1%
S&P 5000.3%
Dow−0.5%
Nvidia2.8%
CoreWeave6.3%
Micron5.1%
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