Claude Fable 5.1 API

Access Claude Fable 5.1 through a simple, OpenAI-compatible API. Change one URL and one key — your existing code works immediately. No SDK changes needed.

58% cheaper than OpenRouter

Claude Fable 5.1 Pricing

Token TypeQubaxRetailSave
Input (per 1M)$4.22$10.0058%
Output (per 1M)$21.10$50.0058%

At $4.22/1M input tokens, Claude Fable 5.1 is one of the most affordable APIs in its class.

Why use Claude Fable 5.1 API on Qubax?

  • Point your OpenAI SDK at https://api.qubax.ai/v1
  • Use model ID: claude-fable-5.1
  • Generate API keys starting with qbx_live_
  • Full streaming, function calling, and vision support

About Claude Fable 5.1

Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual... It supports a 1M-token context window and up to 128K output tokens per request. Native capabilities include reasoning, vision, tool calling, structured output, streaming. On Qubax it is served by 78 independent sellers, so pricing stays competitive and uptime stays high.

1M context window128K max output tokensReasoning with selectable effort levels (default)Vision / image inputFunction & tool callingJSON schema responsesPDF inputWeb search

Claude Fable 5.1 API Access — code example

Python — OpenAI SDK, one-line switchpython
from openai import OpenAI

# Only two lines change vs the official API:
client = OpenAI(
    base_url="https://api.qubax.ai/v1",
    api_key="qbx_live_YOUR_KEY",
)

response = client.chat.completions.create(
    model="claude-fable-5.1",
    messages=[{"role": "user", "content": "Hello, Claude Fable 5.1!"}],
)
print(response.choices[0].message.content)

More Anthropic models on Qubax

Get started in 60 seconds

  1. 1Create a free account at qubax.ai/register
  2. 2Add crypto credits (200+ coins, $3 minimum, credits never expire)
  3. 3Generate an API key and set your base URL to https://api.qubax.ai/v1
  4. 4Use model ID claude-fable-5.1 — done!

Claude Fable 5.1 API Access FAQ

How much does Claude Fable 5.1 cost API?

On Qubax, Claude Fable 5.1 costs $4.22 per 1M input tokens and $21.10 per 1M output tokens. 58% cheaper than OpenRouter. Pay with 200+ cryptocurrencies.

Can I use Claude Fable 5.1 with my existing tools?

Yes. Qubax is fully OpenAI-compatible. Change your base URL to api.qubax.ai/v1 and use your Qubax key. Works with Cline, Cursor, OpenCode, LangChain, and any OpenAI SDK.

Do I need a credit card?

No. Qubax accepts 200+ cryptocurrencies. No credit card, no KYC.

Start using Claude Fable 5.1 API

No credit card. Crypto accepted. Credits never expire.

Get started →
Claude Fable 5.1 API — 58% off · Qubax AI