All 3 providers

Claude Fable 5.1

on Google Vertex AI
claude-fable-5-1
Released Sep 1, 2026
Chat
Context
1.0M
Input
$10.00/M
Output
$50.00/M
BAA-eligiblePHI requires a signed BAA from Concentrate and HIPAA-enabled organization.
Aliases:claude-fable5.1fable-5.1fable5.1fable-5-1claude-5-1-fable

Anthropic's most capable model for demanding reasoning and long-horizon agentic work, with a 1M context window. Successor to Fable 5 with cheaper cache reads; forced tool_choice is not supported.

Anthropic's most capable model for demanding reasoning and long-horizon agentic work, with a 1M context window. Successor to Fable 5 with cheaper cache reads; forced tool_choice is not supported.

Google Vertex AI

vertex/claude-fable-5-1QuantUnspecified
Input
$10.00/M
Output
$50.00/M
Context
1.0M
Max out
128K
Cache read
$0.25/M
Cache write ephemeral_5m_input_tokens
$12.50/M
Thinking out
$50.00/M
CONCENTRATE

One API for every major LLM provider — routing, spend, logs, and controls in one place.

New York

130 E 59th St, 17th floor

New York, NY 10022

Wilmington

1201 N. Market Street, Suite 200

Wilmington, DE 19801

LLM Gateway
  • LLM Gateway
  • Request Routing
  • Usage Monitoring
  • Spend Management
  • Data Security
  • Access Controls
Features
  • Universal API Keys
  • BYOK
  • Spend Tracking
  • Token Allocation
  • Usage Analytics
  • Request Logs
  • Alerts
  • Data Redaction
  • Zero Data Retention
  • Audit Logs
  • Centralized Billing
  • Volume-Based Pricing
Teams
  • AI Engineering
  • Engineering Leadership
  • Finance & Operations
  • Security & Compliance
Integrations
  • All Integrations
  • Migration Guides
Platform
  • Pricing
  • ROI Calculator
  • Model Fortress
  • Enterprise
  • Documentation
  • Status
Legal
  • Privacy Policy
  • Terms of Service
  • Data Processing Addendum
  • Acceptable Use Policy
  • Trust Center

LLM Gateway

  • LLM Gateway
  • Request Routing
  • Usage Monitoring
  • Spend Management
  • Data Security
  • Access Controls

Features

  • Universal API Keys
  • BYOK
  • Spend Tracking
  • Token Allocation
  • Usage Analytics
  • Request Logs
  • Alerts
  • Data Redaction
  • Zero Data Retention
  • Audit Logs
  • Centralized Billing
  • Volume-Based Pricing

Teams

  • AI Engineering
  • Engineering Leadership
  • Finance & Operations
  • Security & Compliance

Integrations

  • All Integrations
  • Migration Guides

Platform

  • Pricing
  • ROI Calculator
  • Model Fortress
  • Enterprise
  • Documentation
  • Status

Legal

  • Privacy Policy
  • Terms of Service
  • Data Processing Addendum
  • Acceptable Use Policy
  • Trust Center

Offices

New York

130 E 59th St, 17th floor

New York, NY 10022

Wilmington

1201 N. Market Street, Suite 200

Wilmington, DE 19801

AICPA SOC for Service OrganizationsSOC 2 Type II

© 2026 Concentrate AI. All rights reserved.

CONCENTRATE
PricingDocs
CONCENTRATE
Blog
Request a DemoLog In
Log In
CONCENTRATE

One API for every major LLM provider — routing, spend, logs, and controls in one place.

New York

130 E 59th St, 17th floor

New York, NY 10022

Wilmington

1201 N. Market Street, Suite 200

Wilmington, DE 19801

LLM Gateway
  • LLM Gateway
  • Request Routing
  • Usage Monitoring
  • Spend Management
  • Data Security
  • Access Controls
Features
  • Universal API Keys
  • BYOK
  • Spend Tracking
  • Token Allocation
  • Usage Analytics
  • Request Logs
  • Alerts
  • Data Redaction
  • Zero Data Retention
  • Audit Logs
  • Centralized Billing
  • Volume-Based Pricing
Teams
  • AI Engineering
  • Engineering Leadership
  • Finance & Operations
  • Security & Compliance
Integrations
  • All Integrations
  • Migration Guides
Platform
  • Pricing
  • ROI Calculator
  • Blog
  • Model Fortress
  • Enterprise
  • Documentation
  • Status
Legal
  • Privacy Policy
  • Terms of Service
  • Data Processing Addendum
  • Acceptable Use Policy
  • Trust Center

LLM Gateway

  • LLM Gateway
  • Request Routing
  • Usage Monitoring
  • Spend Management
  • Data Security
  • Access Controls

Features

  • Universal API Keys
  • BYOK
  • Spend Tracking
  • Token Allocation
  • Usage Analytics
  • Request Logs
  • Alerts
  • Data Redaction
  • Zero Data Retention
  • Audit Logs
  • Centralized Billing
  • Volume-Based Pricing

Teams

  • AI Engineering
  • Engineering Leadership
  • Finance & Operations
  • Security & Compliance

Integrations

  • All Integrations
  • Migration Guides

Platform

  • Pricing
  • ROI Calculator
  • Blog
  • Model Fortress
  • Enterprise
  • Documentation
  • Status

Legal

  • Privacy Policy
  • Terms of Service
  • Data Processing Addendum
  • Acceptable Use Policy
  • Trust Center

Offices

New York

130 E 59th St, 17th floor

New York, NY 10022

Wilmington

1201 N. Market Street, Suite 200

Wilmington, DE 19801

AICPA SOC for Service OrganizationsSOC 2 Type II

© 2026 Concentrate AI. All rights reserved.