Anthropic Models

Anthropic Claude Opus 4.8 model for complex reasoning, coding and agentic tasks

Anthropic Claude Opus 4.7 model for complex reasoning, coding and agentic tasks

Anthropic Claude Opus 4.6 model for complex reasoning, coding and agentic tasks

Anthropic Claude Opus 4.5 snapshot (2025-11-01) for complex reasoning and coding

Anthropic Claude Sonnet 4.5 snapshot (2025-09-29) balancing capability and cost

Anthropic Claude Haiku 4.5 snapshot (2025-10-01), fast and low-cost

Claude Fable 5.1 improves on Fable 5 across long-running agentic coding, knowledge work, and research, following instructions precisely over sessions that run unattended for hours.

Claude Fable 5 is a Mythos-class model with robust safeguards.

Claude Haiku 5.5 brings adaptive reasoning to Anthropic’s low-cost Haiku family for everyday tasks, tool use, and scaled sub-agent deployments.

Claude Sonnet 5.5 is a step-change improvement over Sonnet 5 for well-scoped everyday work like building features, fixing bugs, and creating polished documents, slides, and spreadsheets.

Claude Opus 5.5 is a step-change improvement over Opus 5 for agentic coding, long-running agentic tasks, knowledge work, communication, and vision.

Sonnet 5 is an upgrade to Sonnet 4.6, with gains across agentic coding and professional work.

Claude Opus 5 is the latest model in Anthropic's Opus family and a step-change improvement over Opus 4.8.

Claude Sonnet 4.6 is the most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work.

Claude Opus 5.5 is a step-change improvement over Opus 5 for agentic coding, long-running agentic tasks, knowledge work, communication, and vision.

Claude Opus 5 is the latest model in Anthropic's Opus family and a step-change improvement over Opus 4.8.

Opus 4.8 is a focused upgrade to Opus 4.7 and is Anthropic's best generally available model for coding, agentic tasks, and enterprise workflows.

Claude Opus 4.1 is an updated version of Anthropic’s flagship model for coding, reasoning and agentic tasks.