Vertex AI (Anthropic) API
Access Claude models via Google Cloud Vertex AI with the Anthropic Messages API.
Data & Privacy
HQ:US
Safety identifier:Forwarded
API Training:No
Prompt Logging:No
Retention:0 days
GDPR:Compliant
SOC2:Type II Certified
ISO 27001:Certified
Available Models
Claude Sonnet 5.5
anthropic
claude-sonnet-5-5Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$2
/M tokens
Cached
$0.1
/M tokens
Output
$10
/M tokens
Claude Opus 5.5
anthropicPremium
claude-opus-5-5Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$4
/M tokens
Cached
$0.2
/M tokens
Output
$20
/M tokens
Claude Fable 5.1
anthropicPremium
claude-fable-5-1Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$10
/M tokens
Cached
$0.25
/M tokens
Output
$50
/M tokens
Claude Opus 5
anthropicPremium
claude-opus-5Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$5
/M tokens
Cached
$0.5
/M tokens
Output
$25
/M tokens
Claude Sonnet 5
anthropic
claude-sonnet-5Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$2
/M tokens
Cached
$0.2
/M tokens
Output
$10
/M tokens
Claude Fable 5
anthropicPremium
claude-fable-5Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$10
/M tokens
Cached
$1
/M tokens
Output
$50
/M tokens
Claude Opus 4.8
anthropicPremium
claude-opus-4-8Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$5
/M tokens
Cached
$0.5
/M tokens
Output
$25
/M tokens
Claude Opus 4.7
anthropicPremium
claude-opus-4-7Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$5
/M tokens
Cached
$0.5
/M tokens
Output
$25
/M tokens
Claude Sonnet 4.6
anthropicPremium
claude-sonnet-4-6Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$3
/M tokens
Cached
$0.3
/M tokens
Output
$15
/M tokens
Claude Opus 4.6
anthropicPremium
claude-opus-4-6Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 1M
Input
$5
/M tokens
Cached
$0.5
/M tokens
Output
$25
/M tokens
Claude Opus 4.5
anthropicPremium
claude-opus-4-5-20251101Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 200k
Input
$5
/M tokens
Cached
$0.5
/M tokens
Output
$25
/M tokens
Claude Haiku 4.5
anthropic
claude-haiku-4-5Streaming
Vision
Tools
Reasoning
JSON Output
JSON Schema
Vertex AI (Anthropic)
Context: 200k
Input
$1
/M tokens
Cached
$0.1
/M tokens
Output
$5
/M tokens
Claude Sonnet 4.5
anthropicPremiumScheduled for Deactivation
claude-sonnet-4-5Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 200k
Deactivating on Nov 30, 2026
Input
$3
/M tokens
Cached
$0.3
/M tokens
Output
$15
/M tokens
Claude Opus 4.1
anthropicPremium
claude-opus-4-1-20250805Streaming
Vision
Tools
Reasoning
JSON Schema
Vertex AI (Anthropic)
Context: 200k
Input
$15
/M tokens
Cached
$1.5
/M tokens
Output
$75
/M tokens
Claude 3 Opus
anthropicPremium
claude-3-opusStreaming
Vision
Tools
Vertex AI (Anthropic)
Context: 200k
Input
$15
/M tokens
Cached
$1.5
/M tokens
Output
$75
/M tokens
Create an LLM Gateway API key and point any OpenAI-compatible SDK at https://api.llmgateway.io/v1. Set the model to claude-sonnet-5-5. On pay-as-you-go keys, vertex-anthropic/claude-sonnet-5-5 pins every request to Vertex AI (Anthropic); DevPass coding plans do not support provider pinning. You do not need a separate Vertex AI (Anthropic) account or SDK.