II.
ModelVersion overview
Reference · livemodel:claude-mythos-5@current
Claude Mythos 5 overview
Inspect the raw attributes, linked wiki pages, and inbound or outbound graph edges for model:claude-mythos-5@current.
Attributes
displayName
Claude Mythos 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
false
pricingNotes
Batch API pricing is $5/MTok input and $25/MTok output. Anthropic lists Claude Mythos 5 as limited availability through Project Glasswing.
modalities
- text
- image
modalityDirections
- kindtextdirectioninput
- kindimagedirectioninput
- kindtextdirectionoutput
capabilityTags
- long-context
- long-horizon-agents
- adaptive-thinking
- code-execution
- memory-tool
- programmatic-tool-calling
- vision
- project-glasswing
releaseDate
2026-06-09
lifecycleStatus
ga
lifecycleStatusChangedAt
2026-06-09
accessStatus
limited-availability
accessNotes
Limited availability to approved Project Glasswing customers; contact Anthropic, AWS, or Google Cloud account teams.
modelCardUrl
supportsFineTuning
false
regions
- global
providerModelIds
- claude-mythos-5
providerAvailability
- providerstatuslimited-availabilityannouncedAt2026-06-09modelIdclaude-mythos-5transportevidenceSourceIds
- providerstatuslimited-availabilityannouncedAt2026-06-09evidenceSourceIdsnotesAnthropic overview marks the AWS Bedrock ID as limited availability rather than publishing a public Bedrock model ID.
- providerstatuslimited-availabilityannouncedAt2026-06-09evidenceSourceIdsnotesAnthropic overview marks the Vertex AI ID as limited availability rather than publishing a public Vertex model ID.
releaseDateNotes
Anthropic documents Claude Mythos 5 as available in limited availability
through Project Glasswing beginning 2026-06-09 and as the successor to
Claude Mythos Preview.
Outgoing edges
belongs_to_family1
- model-family:claude-mythos·ModelFamilyClaude Mythos
realizes1
- layer:1-model·LayerModel
served_by3
- provider:anthropic·ModelProviderProductAnthropic
- provider:aws-bedrock·Provider
- provider:gcp-vertex·ProviderGoogle Cloud Vertex AI
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-mythos·ModelFamilyClaude Mythos
Incoming edges
about_subject4
has_version1
- model-family:claude-mythos·ModelFamilyClaude Mythos
serves1
- provider:anthropic·ModelProviderProductAnthropic