Claude Mythos Preview API Pricing

Claude Mythos Preview pricing by provider

5 listings across 2 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

Other Claude Mythos Preview prices on Anthropic

What Claude Mythos Preview costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

Claude Mythos Preview features

• Function calling
• Structured output
• Image input
• PDF input
• Reasoning
• Prompt caching
• Computer use

Use Claude Mythos Preview with LiteLLM

Call Claude Mythos Preview through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="claude-mythos-preview",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: claude-mythos-preview
    litellm_params:
      model: claude-mythos-preview
      api_key: os.environ/ANTHROPIC_API_KEY

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "claude-mythos-preview",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Claude Mythos Preview FAQ

More Anthropic models

• Claude Mythos 5.1$10 / $50 per 1M tokens
• Claude Mythos 5$10 / $50 per 1M tokens
• Claude Sonnet 5.5$2 / $10 per 1M tokens
• Claude Opus 5.5$4 / $20 per 1M tokens
• Claude Opus 4.8 Think$5 / $25 per 1M tokens
• Claude Fable 5.1$10 / $50 per 1M tokens
• Claude Opus 5$5 / $25 per 1M tokens
• Claude Sonnet 5$2 / $10 per 1M tokens