Last refreshed 2026-11-09. Next refresh: weekly.
Why use Claude Mythos 5.2 on AWS Bedrock?
AWS Bedrock offers Claude Mythos 5.2 with restricted access. AWS Bedrock is Amazon's fully managed foundation-model service, providing unified API access to top models from Anthropic, Meta, Mistral, and other leading AI labs with built-in tools for RAG, fine-tuning, and AI agent development.
Compare Claude Mythos 5.2 across 2 providers to find the best fit for your use caseSetup recipe
Python + curlpip install boto3export AWS_ACCESS_KEY_ID=...import boto3
client = boto3.client("bedrock-runtime", region_name="us-east-1")
response = client.converse(
modelId="anthropic.claude-mythos-5-2",anthropic.claude-mythos-5-2Request example
import boto3
# Reads AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_DEFAULT_REGION from env
client = boto3.client("bedrock-runtime", region_name="us-east-1")
response = client.converse(
modelId="anthropic.claude-mythos-5-2",
messages=[{
"role": "user",
"content": [{"text": "Hello"}]
}]
)
print(response["output"]["message"]["content"][0]["text"])Gotchas
- Use provider model ID "anthropic.claude-mythos-5-2", not the LLMReference slug "claude-mythos-5-2".
- Use Amazon Bedrock model IDs, e.g. "anthropic.claude-3-opus-20240229-v1:0" for on-demand, or cross-region inference profile IDs like "us.anthropic.claude-opus-4-7-20251101-v1:0". These differ from the public model slug.
- The endpoint template includes a region segment; set the same region in your SDK/client configuration.
- The examples expect AWS_ACCESS_KEY_ID; rename it only if your application config maps the new variable.
Compare Claude Mythos 5.2 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $8.00 | $40.00 |
| AWS Bedrock | — | — |
Capabilities
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.