Anthropic · LLM
Claude Opus 4
Claude Opus 4 is Anthropic's top-tier model from the Claude 4 generation, released in May 2025 alongside Sonnet 4. It is built for long, autonomous coding and agent work, and can think at length while using tools.
Capabilities
- ▸Long-running agentic coding
- ▸Extended thinking with tool use
- ▸Complex multi-step tasks
- ▸Strong writing and analysis
Use cases
agentic coding · research · long autonomous tasks
Lineage
View the full Claude lineage →Go deeper
Sources & verification
Information is compiled from official announcements, documentation and reputable industry coverage.
Last verified Oct 5, 2026