Claude Opus 5 release

Anthropic released Claude Opus 5 on 24 July 2026, a proprietary frontier LLM aimed at coding, professional knowledge work and long-running agents. Anthropic says coding, professional tasks, efficiency and alignment are improved over Opus 4.8, with adjustable effort and a Fast mode.

Limitations: security-adjacent prompts may be refused, benchmark and safety claims are vendor-reported, and model behaviour is probabilistic. Available in Claude products and the API, with a gradual GitHub Copilot rollout. Pricing: $5 per million input tokens, $25 per million output; Fast mode costs twice as much.

AMD ROCm.ai and ATOM (23 July, 72-hour extension): open AI software and optimised inference components aimed at simplifying model deployment on AMD infrastructure and accelerating vLLM and SGLang serving. Performance depends on hardware, model, batching, quantisation and software maturity.

Described as open source; infrastructure costs are separate. Other models supported only by rumour, leaked screenshots or anonymous social-media claims were not included.