Anthropic released Claude Opus 4.7 on April 16, 2026, its most capable model yet, excelling in coding, agentic workflows, vision tasks, and sustained reasoning while introducing safeguards against high-risk cybersecurity uses like exploits. This launch follows a March code leak exposing Opus 4.7 references alongside unreleased features such as persistent agents (Kairos) and multi-agent orchestration, fueling trader anticipation amid competitive pressure from OpenAI's GPT series and xAI's Grok. Market-implied odds surged on pre-release rumors of a "this week" drop, validated by the announcement; traders now eye rapid integrations into Claude Code and potential Mythos previews for enterprise, with developer benchmarks expected to confirm its edge in software engineering tasks.