Claude Opus 4.5 demonstrates superior capabilities for multi-agent orchestration and long-running engineering tasks compared to Gemini 3. The model excels at delegating work to sub-agents, managing browser automation workflows, and building full-stack applications through agentic workflows. With pricing reduced by one-third from the previous version, Opus 4.5 offers state-of-the-art performance at 60 tokens per second. The model's strength lies in prompt engineering for sub-agents and executing complex, multi-step development workflows including planning, building, hosting, and automated testing through browser agents operating in isolated sandboxes.