Claude Fable 5 API

Claude Fable 5 pricing

Cache-write rate: $2.2421525 per million tokens.

Prices are USD per million tokens. Cached input uses the cache-read rate when a cache hit is reported.

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API compatibility and context

Exact model ID

claude-fable-5

Variant

standard

Supported API

Anthropic-compatible Messages

Availability

preview

Context window

Not published

Maximum input

Not published

Maximum output

Not published

Use Claude Fable 5 through the API

Create a RouterHub account, add prepaid credits and create an API key. Set ROUTERHUB_API_KEY locally, then send a first request with the exact model ID below.

cURL

curl --connect-timeout 30 --max-time 600 https://routerhub.si/v1/messages \
  -H "x-api-key: $ROUTERHUB_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-fable-5","messages":[{"role":"user","content":"Write a short noir scene set in a lighthouse."}],"max_tokens":256}'

Python

Install anthropic with pip. The examples request 256 output tokens and disable automatic retries. Check Usage after completion or a timeout before resending a paid request.

import os
from anthropic import Anthropic

client = Anthropic(
    api_key=os.environ["ROUTERHUB_API_KEY"],
    base_url="https://routerhub.si",
    timeout=600.0,
    max_retries=0,
)
response = client.messages.create(
    model="claude-fable-5",
    max_tokens=256,
    messages=[{"role": "user", "content": "Write a short noir scene set in a lighthouse."}],
)
print(response.content)

• Find compatible tools for this modelChoose a coding tool and configure your model.
• Get API accessCreate an account and set up your API key.

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