Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Specs
More models from Anthropic
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...
Questions about Claude 3 Sonnet
What is Claude 3 Sonnet?
The balanced middle model of the Claude 3 family, the first Claude models that could read images.
How big is the context window of Claude 3 Sonnet?
Claude 3 Sonnet can read up to 200,000 tokens in one request, roughly 150,000 words.
Is Claude 3 Sonnet open source?
Claude 3 Sonnet does not have downloadable weights. You use it through Anthropic or an API provider.
Can I still use Claude 3 Sonnet?
Anthropic has switched Claude 3 Sonnet off, so it can no longer be used through their app or API. It is listed here for history and comparison; see the newer Anthropic models below.
What can Claude 3 Sonnet take as input?
Claude 3 Sonnet accepts text, image and produces text.
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Specs come from the provider's announcement and papers. Last checked 4 Mar 2024.