Anthropic exposes Claude Mythos Preview through model ID claude-mythos-preview. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-07-26. Next refresh: weekly.
Quick Start
- 1
- 2Use the Anthropic SDK or REST API to call
claude-mythos-preview— see the documentation for request format. - 3
Code Examples
pip install anthropicANTHROPIC_API_KEYclaude-mythos-previewUse the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-mythos-preview",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)Pricing on Anthropic
| Type | Price (per 1M) |
|---|---|
| Input tokens | $25.00 |
| Output tokens | $125.00 |
Capabilities
About Claude Mythos Preview
Anthropic's cybersecurity-focused frontier model, offered as an invitation-only research preview under Project Glasswing. Succeeded by Claude Mythos 5 (API ID: claude-mythos-5) as of June 9, 2026. Anthropic has indicated that Claude Mythos Preview will be retired after Claude Mythos 5 becomes available; no formal retirement date was published as of 2026-06-09. For current access and the migration path, see the Anthropic migration guide.