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Introducing Claude Opus 5.5

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The Penis
  09/22/26
Oh shit, not flame. The craziest part is that it beats Fabl...
.,.,...,..,.,.,:,,:,.,.,:::,...,:,...:..:.,:.::,.
  09/22/26
Yeah much cheaper too. I think it said 40%. Pretty crazy. Wo...
The Penis
  09/22/26
Wouldn't make sense for it not to leapfrog Opus 5.5.
.,.,...,..,.,.,:,,:,.,.,:::,...,:,...:..:.,:.::,.
  09/22/26


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Date: September 22nd, 2026 12:33 PM
Author: The Penis



(http://www.autoadmit.com/thread.php?thread_id=5905936&forum_id=2,#50149277)



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Date: September 22nd, 2026 12:44 PM
Author: .,.,...,..,.,.,:,,:,.,.,:::,...,:,...:..:.,:.::,.


Oh shit, not flame. The craziest part is that it beats Fable on everything (I got the chart from Opus 5.5):

Benchmark Opus 5.5 Fable 5.1 Opus 5

Terminal-Bench 4.0 (agentic coding) 66.4% 55.8% 52.3%

FrontierCode v1.1 Main (coding) 54.4% 50.3% 48.0%

CursorBench 4.0 (coding) 57.8% 51.8% 46.6%

GDPval-AA v2.1 (knowledge work, Elo) 1846 1735 1708

AutomationBench (business workflows) 40.0% 31.4% 26.9%

Humanity's Last Exam (with tools) 67.7% 65.6% 63.6%

Terminal-Bench-Science 0.1 58.7% 52.6% 29.0%

OSWorld 2.0 (computer use) 81.8% 80.7% 74.0%

Chartography (chart reading) 89.0% 88.4% 83.4%

Price per 1M tokens (input / output) $4 / $20 $10 / $50 $5 / $25

(http://www.autoadmit.com/thread.php?thread_id=5905936&forum_id=2,#50149294)



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Date: September 22nd, 2026 12:48 PM
Author: The Penis

Yeah much cheaper too. I think it said 40%. Pretty crazy. Wonder what Fable 5.5 is like, I'd bet they already have it running internally.

(http://www.autoadmit.com/thread.php?thread_id=5905936&forum_id=2,#50149309)



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Date: September 22nd, 2026 12:54 PM
Author: .,.,...,..,.,.,:,,:,.,.,:::,...,:,...:..:.,:.::,.


Wouldn't make sense for it not to leapfrog Opus 5.5.

(http://www.autoadmit.com/thread.php?thread_id=5905936&forum_id=2,#50149330)