Anthropic AI Models
Safety-focused lab behind the Claude model family. Known for Constitutional AI and long-context capabilities.
Claude Opus 4.6
Anthropic
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks.
Claude Sonnet 4.5
Anthropic
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows.
Claude Sonnet 4.6
Anthropic
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work.
Claude Haiku 4.5
Anthropic
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models.
Claude Opus 4.5
Anthropic
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use.
Claude Sonnet 4
Anthropic
Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability.
Claude 3.5 Haiku
Anthropic
Claude 3.5 Haiku features offers enhanced capabilities in speed, coding accuracy, and tool use.
Claude 3.7 Sonnet
Anthropic
Claude 3.7 Sonnet is an advanced large language model with improved reasoning, coding, and problem-solving capabilities.
Claude 3.5 Sonnet
Anthropic
New Claude 3.5 Sonnet delivers better-than-Opus capabilities, faster-than-Sonnet speeds, at the same Sonnet prices.
Claude 3 Haiku
Anthropic
Claude 3 Haiku is Anthropic's fastest and most compact model for near-instant responsiveness.
Claude Opus 4
Anthropic
Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows.
Claude Opus 4.1
Anthropic
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks.