Claude Mythos 5.2 on Anthropic

Claude Mythos · Anthropic

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Last refreshed 2026-11-09. Next refresh: weekly.

Why use Claude Mythos 5.2 on Anthropic?

Anthropic offers Claude Mythos 5.2 with restricted access; listed pricing at $8.00/1M input tokens. Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.

Compare Claude Mythos 5.2 across 2 providers to find the best fit for your use case
Input / 1M
$8.00
Output / 1M
$40.00
Cache
read $0.20 / 5m $10.00 / 1h $16.00
Batch
-50% · in $4.00 / out $20.00

Setup recipe

Python + curl
Install
pip install anthropic
Auth
export ANTHROPIC_API_KEY=...
Call
import anthropic
client = anthropic.Anthropic()  # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
    model="claude-mythos-5-2",
Model ID
claude-mythos-5-2

Request example

import anthropic

client = anthropic.Anthropic()  # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
    model="claude-mythos-5-2",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)

Gotchas

  • Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
  • The examples expect ANTHROPIC_API_KEY; rename it only if your application config maps the new variable.

Compare Claude Mythos 5.2 Across Providers

ProviderInput (per 1M)Output (per 1M)
Anthropic$8.00$40.00
AWS Bedrock——

Pricing

TypePrice (per 1M)
Input tokens$8.00
Output tokens$40.00

Capabilities

VisionMultimodalReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt CachingBatch API

About Claude Mythos 5.2

Claude Mythos 5.2 is Anthropic's restricted Mythos-class model, released November 9, 2026. It is the same underlying model as Claude Fable 5.2 without the cybersecurity and biology safeguards. Access is restricted to organizations verified through Anthropic's Life Sciences and Cyber Verification Programs. Claude API id claude-mythos-5-2. 1M-token context, 128K max output, adaptive thinking always on (default effort high), text and image input to text output. Knowledge cutoff June 2026. For verified organizations, Anthropic documents model IDs for the Claude API, Amazon Bedrock, Claude Models on Google Cloud (Google-managed and Anthropic-managed), Microsoft Foundry and Claude Platform on AWS.

Request access

Model Specs

Released2026-11-09
Context1M
ArchitectureDecoder Only
Knowledge cutoff2026-06