Canonical event

Anthropic releases Claude 2.1

Claude 2.1 became available with 200K context, system prompts and beta tool use.

Artifacts

Claude 2.1
evidenced_by · long_context_tool_model_release

Signals

Long-context, multimodal and tool-capable model interfaces expanded across multiple providers and developer platforms while some frontier variants remained preview or unavailable.
supported inference

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