Claude Fable 5 (US)

Claude Fable 5 was launched by Anthropic as the latest entry in its model series, positioned around meaningful gains in reasoning and multimodal processing rather than incremental tweaks. According to third-party reporting that attributes the details to an Anthropic announcement, the model is intended for enterprise-level applications and research workloads, signaling a focus on tasks that benefit from careful multi-step thought and richer input handling. The same reporting frames Fable 5 as a foundation for higher-stakes professional use, where reliability and the ability to interpret varied inputs matter more than raw conversational charm.

Within the Claude Fable family, Fable 5 is described as being accompanied by a more heavily aligned sibling, Mythos 5, which sits above it on the safety-alignment spectrum even though its global reach has been curtailed by policy restrictions. For practitioners, this means Fable 5 is the more broadly accessible option in the family while still inheriting the family's emphasis on careful reasoning, making it a practical fit for organizations that want strong analytical behavior and multimodal input handling without committing to the more restricted tier.

Amazon Bedrockus.anthropic.claude-fable-5claude-fable

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Quick Info

Provider: Amazon Bedrock
Model key: us.anthropic.claude-fable-5
Release date: Jun 9, 2026
Last updated: Jun 9, 2026
Knowledge cutoff: 2026-01-31
Input modalities
Output modalities
Capabilities

Cost

Input token cost: $11.00
Output token cost: $55.00

Limits

Output tokens: 128,000 tokens
Context window: 1,000,000 tokens

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Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about Claude Fable 5 (US)

Amazon Bedrock

Coverage

A WinCentral report dated June 25, 2026 details speculation that Claude Fable 5 may be edging toward a U.S.-only restoration following a reported global shutdown on June 12, 2026. The article cites new interface strings discovered in Anthropic applications — including a "You've reached your Fable 5 limit" message — as The piece frames the original June 9, 2026 launch as a public release of Anthropic's Mythos-class system with strong gains in coding, long-context reasoning, and autonomous task execution, and attributes the early-June shutdown to a combination of export-control concerns and a publicized jailbreak vulnerability. WinCen

Amazon Bedrock

Coverage

According to a June 10, 2026 developer walkthrough by Lavaraja Padala, AWS announced the general availability of Claude Fable 5 on Amazon Bedrock on June 9, 2026. The post describes Fable 5 as the first Mythos-class model available to all customers, noting that previously Mythos capabilities were limited to a small set The same Medium article enumerates Fable 5's headline capabilities: days of autonomous runtime without human intervention, self-verification against task goals, advanced vision that can rebuild web app source from screenshots and solve Pokémon FireRed from raw frames alone, and long-context focus across millions of tok