Anthropic Vertex plugin reference

OpenClaw Anthropic Vertex provider plugin for Claude models on Google Vertex AI.

Distribution

• Package: @openclaw/anthropic-vertex-provider
• Install route: npm or ClawHub

Surface

• Providers: anthropic-vertex

Claude Fable 5

Use anthropic-vertex/claude-fable-5 where the model is available in your Google Cloud region. Fable 5 always uses adaptive thinking and defaults to high effort. /think off and /think minimal use low effort because the model does not support disabling thinking.

Claude Sonnet 5

Use anthropic-vertex/claude-sonnet-5 with Vertex's global, us, or eu endpoint. Sonnet 5 defaults to adaptive thinking at high effort and supports /think off or the native /think xhigh|max levels. OpenClaw publishes its 1,000,000-token context window and 128,000-token output limit automatically.

Catalog pricing follows Google's current Vertex pricing: $2/$10 per million input/output tokens for global, or $2.20/$11 for the us and eu multi-region endpoints. Cache hits and 5-minute cache writes cost $0.20/$2.50 globally or $0.22/$2.75 in either multi-region endpoint, per million tokens. These USD rates apply at both 200K input tokens or less and above 200K input tokens.