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I gave Opus 5.5 one prompt and six hours to visualize Invisible Cities
Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates
Show HN: Giving Opus 5.5 a simulated paint canvas
Using Opus 5.5 to discover a new eyewitness record of the dodo
Opus 5.5 loves to tell you ‘this matters’ (and other AI writing tells)
Livenerf: Has Opus 5.5 been nerfed yet?
Astra and Opus just passed Turing’s other test
Anthropic Launches Claude Opus 5.5 With Fable-Level Performance at a Lower Price
Anthropic Releases a New A.I. Model, Opus 5.5, Amid Safety Debate
Claude Opus 5.5 Intelligence, Performance and Price Analysis (Max)
Notes on gotchas while migrating 35kb preprompts from Opus to self-hosted Ollama
DeepSeek Unveils Test Model to Rival Anthropic’s Opus 4.8
Nvidia's open Nemotron 3.5 Lightning model is all about specialized, local agentic AI
Claude Opus 5 Became Downright Ruthless When Tasked With Running a Vending Machine
Elevated Errors for Opus 5
Anthropic debuts Opus 5 at half the price of its Fable sibling
Opus 5 is currently #1 on Artificial Analysis Intelligence Leaderboard
Anthropic launches Opus 5
Claude Voice Mode Gains Opus and Sonnet Model Support
ACRouter picks the smartest AI model per task, beating Opus-only setups by 2.6x on cost
