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Claude Mythos 5Verification required

Most capable model for cybersecurity and biology research

How refusals and fallback work
Context window
1Mtokens
Max output
128Ktokens
Input pricing
$10/ MTok
Output pricing
$50/ MTok
Claude Mythos 5 is available only to organizations verified through Anthropic’s verification programs, such as the Cyber Verification Program. It has the same specifications and pricing as Claude Fable 5. To request access, apply to the program that covers your use case.
See Claude Fable 5

Como ele se compara

ModelContextMax outputPrice / MTokThinkingDefault effortKnowledge cutoff
Claude Fable 5.11M128K$10 / $50Adaptive (always on)highJun 2026
Claude Mythos 5This model1M128K$10 / $50Adaptive (always on)highJan 2026
Claude Opus 5.51M128K$4 / $20Adaptive (always on)mediumJun 2026
Claude Sonnet 5.51M128K$2 / $10AdaptivehighJun 2026
Claude Haiku 5.51M128KFrom $0.10 / $0.50AdaptivemediumJun 2026

Especificações

Model IDs

Claude API
Amazon Bedrock
Google Cloud
Microsoft Foundry

Pricing

Input
$10 / MTok
Output
$50 / MTok
5m cache write
$12.50 / MTok
1h cache write
$20 / MTok
Cache read
$1 / MTok
Batch API
50% discount on input and output

Full price list

Capabilities

Max output
128K tokens
Thinking
Adaptive (always on)
Input → output
Text and images → text
Reliable knowledge cutoff
Jan 2026
Training data cutoff
Jan 2026

Availability

Status
Active (verification required)
Released
June 9, 2026
Retirement
Not sooner than June 9, 2027

Recursos

O que muda ao passar do Claude Mythos 5 para o Claude Mythos 5.1.

O modelo Mythos atual: visão geral, especificações e recursos.

Referência

Avaliações de segurança e decisões de implantação para o Claude Fable 5 e o Claude Mythos 5.

Lista completa de preços, incluindo descontos para lotes e tarifas de cache de prompt.

Como funcionam os IDs de modelo, aliases e snapshots fixados.

Status do ciclo de vida e compromissos de desativação para cada modelo Claude.

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