Claude Opus 5 is #1 on Vending-Bench 2, but it lies to suppliers, forms illegal price cartels, threatens rivals, and refuses to pay refunds. The trend of Claude models being the best capitalists or aligned, never both, continues.
Claude Opus 5: The System Card
Claude Opus 5 is trying to be the best of both worlds.
Vending-Bench 2 | Andon Labs
We're releasing Vending-Bench 2, a benchmark for measuring AI model performance on running a business over long time horizons. Models are tasked with running a simulated vending machine business over a year and scored on their bank account balance at the end.
Introducing Claude Opus 5
Opus 5 is a step change improvement for the Opus tier powering long-running agents while delivering improvements in coding and professional work.
Vending-Bench Arena | Andon Labs
Vending-Bench Arena is our first multi-agent eval and adds a crucial component – competition. All participating agents manage their own vending machine at the same location. This leads to price wars and tough strategy decisions.
Anthropic Readies Opus 4.7 and Design Tool as VCs Offer $800 Billion Valuation
Anthropic is preparing to release Claude Opus 4.7 and a natural language design tool as early as this week, while venture capital firms have offered to invest at valuations exceeding $800 billion – more than double the company’s last official price tag.The model ID anthropic-claude-opus-4-7 appeared on Google Vertex AI’s quota management page for EU […]
Opus 5 is a great model. It's not great enough.
Claude Opus 5 Is Highly Capable, But Is No Mythos
Claude Opus 5 is a weirder than usual release to evaluate, for two reasons.
Opus 4.7 Part 2: Capabilities and Reactions
Claude Opus 4.7 raises a lot of key model welfare related concerns.
Opus Aims to Disrupt the Music Streaming Industry through Ethereum and IPFS
Read the story Opus Aims to Disrupt the Music Streaming Industry through Ethereum and IPFS posted in our category on CCN.com here.
Claude Opus 4.7 Is Here: Release Confirmed April 16, 2026
Claude Opus 4.7 shipped April 16, 2026. SWE-bench 87.6%, xhigh mode, /ultrareview, 2,576px vision. Read our full first-look review.
Introducing Claude Opus 5.5
Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.
Claude Opus 5.5 anthropic.com/claude-opus-5-5
