Anthropic's Claude Fable 5.2 on Google Cloud

Anthropic's Claude Fable 5.2 on Google Cloud is designed for technical and scientific work, including coding and finance. It can work on ambiguous problems over long periods, verify its own work, and orchestrate subagents.

Retirement date: No sooner than November 9, 2027.

Try in Agent Studio View model card in Model Garden

Model ID claude-fable-5-2
Launch stage GA
Supported inputs & outputs
  • Inputs:
    Text, Image, PDF
  • Outputs:
    Text
Token limits
  • Maximum input tokens: 1,000,000
  • Maximum output tokens: 128,000
Capabilities
Usage types
Technical specifications
Images
  • Limitation and specifications: See Vision in Anthropic's documentation
Documents
  • Limitation and specifications: See PDF support in Anthropic's documentation
Versions
  • claude-fable-5-2
    • Launch stage: Generally available
    • Release date: November 9, 2026
    • Retirement date not sooner than: November 9, 2027
Supported regions

Model availability

(Includes fixed quota & Provisioned Throughput)

  • United States
    • us (US multi-region)
  • Europe
    • eu (Europe multi-region)
  • Global
    • global (global endpoint)

ML processing

  • United States
    • Multi-region
  • Europe
    • Multi-region
Quota limits

us (US multi-region):

eu (Europe multi-region):

global (global endpoint):

Pricing See Pricing.

Fast mode

Anthropic's Claude Fable 5.2 on Google Cloud supports fast mode to accelerate output token generation for latency-sensitive, interactive workloads. Set "speed": "fast" in online prediction requests to claude-fable-5-2:

  • Pricing: Fast mode is priced at 2x the standard-speed token rates across all token types (input, output, 5-minute and 1-hour cache write, and cache hit tokens). Web search tool calls are billed at the standard rate. See the Agent Platform pricing page.
  • Quotas: On global and multi-region endpoints, fast mode requests draw from a dedicated anthropic-claude-fable-fast shared lineage quota bucket separate from standard anthropic-claude-fable quota.
  • No Provisioned Throughput: Fast mode doesn't support Provisioned Throughput. Fast mode requests always use pay-as-you-go, and fast mode requests sent with the X-Vertex-AI-LLM-Request-Type: dedicated header are throttled with an HTTP 429 (RESOURCE_EXHAUSTED) error.

For code samples, monitoring, and limitations, see Fast mode with Anthropic Claude models.

Enable Anthropic's Claude Fable 5.2 on Google Cloud in your project

Follow these steps to enable Anthropic's Claude Fable 5.2 on Google Cloud in your project: