Providers

API providers, route pricing, availability, and recent reliability signals.

Performance

Latency, throughput, and reliability signals from recent traffic.

Pricing

Effective prices over the last 30 days, with current provider list prices for context.

Benchmarks

Headline benchmark standings and comparison context.

Activity

Daily gateway activity over the last 30 days, with current UTC-day pace projection.

Apps Using This Model

Public apps observed in gateway request traffic for this model.

Model Uptime

Uptime trend for this model over the last 24 hours.

Quickstart

Start calling this model with endpoint-specific examples.

About

Key dates, capabilities, and model metadata.

Subscriptions

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Anthropic: Claude Fable 5

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Claude Fable 5 is Anthropic's generally available Mythos-class model for long-horizon coding, autonomous knowledge work, and asynchronous agent workflows. It shares the same underlying model as Claude Mythos 5 but ships with safeguards for high-risk cyber, biology, and chemistry requests, positioning it as Anthropic's public frontier model above Claude Opus 4.8 for large codebases, multi-stage debugging, and end-to-end work that can run for hours or days with minimal human check-ins.

Claude Fable family

1 models

We track 1 sibling across 1 provider. Launch window Jun 2026 - Jun 2026.

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Claude Fable 5

Anthropic

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