II.
ModelVersion overview
Reference · livemodel:claude-fable-5@current
Claude Fable 5 overview
Inspect the raw attributes, linked wiki pages, and inbound or outbound graph edges for model:claude-fable-5@current.
Attributes
displayName
Claude Fable 5
modelFamilyId
versionRange
>=5.0.0 <5.1.0
kind
reasoning
contextWindowTokens
1000000
maxOutputTokens
128000
costPerMTokInput
10
costPerMTokCachedInput
1
costPerMTokCacheWrite5m
12.5
costPerMTokCacheWrite1h
20
costPerMTokOutput
50
supportsExtendedThinking
false
supportsAdaptiveThinking
true
supportsThinking
true
supportsThinkingBudgetTokens
true
supportsRefusals
true
pricingNotes
Batch API pricing is $5/MTok input and $25/MTok output; Claude Fable 5 refusals that produce no output are not billed.
modalities
- text
- image
modalityDirections
- kindtextdirectioninput
- kindimagedirectioninput
- kindtextdirectionoutput
capabilityTags
- long-context
- long-horizon-agents
- adaptive-thinking
- code-execution
- memory-tool
- programmatic-tool-calling
- vision
- refusals
releaseDate
2026-06-09
lifecycleStatus
ga
lifecycleStatusChangedAt
2026-06-09
modelCardUrl
supportsFineTuning
false
regions
- global
providerModelIds
- claude-fable-5
- anthropic.claude-fable-5
providerAvailability
- providerstatusgaannouncedAt2026-06-09modelIdclaude-fable-5transportevidenceSourceIds
- providerstatusgaannouncedAt2026-06-09modelIdanthropic.claude-fable-5transportevidenceSourceIds
- providerstatusgaannouncedAt2026-06-09modelIdclaude-fable-5transportevidenceSourceIds
- providerstatusgaannouncedAt2026-06-09evidenceSourceIdsnotesAnthropic lists Microsoft Foundry availability for Claude Fable 5 beginning June 9, 2026.
releaseDateNotes
Anthropic documents Claude Fable 5 as generally available on the Claude API,
Claude Platform on AWS, Amazon Bedrock, Vertex AI, and Microsoft Foundry
beginning 2026-06-09.
accessNotes
Claude Fable 5 includes safety classifiers that can return
stop_reason: "refusal" as a successful Messages API response.
Outgoing edges
belongs_to_family1
- model-family:claude-fable·ModelFamilyClaude Fable
realizes1
- layer:1-model·LayerModel
served_by4
- provider:anthropic·ModelProviderProductAnthropic
- provider:aws-bedrock·Provider
- provider:gcp-vertex·ProviderGoogle Cloud Vertex AI
- provider:azure-foundry·ProviderAzure AI Foundry
speaks2
- model-transport:anthropic-messages·ModelTransportProtocolAnthropic Messages
- model-transport:vertex-anthropic-messages·ModelTransportProtocolVertex AI — Anthropic Messages
supports5
- capability:adaptive-thinking·CapabilityAdaptive thinking
- capability:supports-tool-use·CapabilitySupports tool use
- capability:vision-input·CapabilityVision input
- capability:supports-prompt-caching·CapabilitySupports prompt caching
- capability:supports-batch-api·CapabilitySupports batch API
version_of1
- model-family:claude-fable·ModelFamilyClaude Fable
Incoming edges
about_subject4
has_version1
- model-family:claude-fable·ModelFamilyClaude Fable
serves1
- provider:anthropic·ModelProviderProductAnthropic