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Claude Fable 5

Claude Fable 5 is Anthropic's model designed for complex reasoning and agentic coding workflows. Features a 1M token context window, adaptive thinking, and strong performance across multilingual tasks, long-context handling, and vision.

Text to Speech

Javascript

Python

                                        const Anthropic = require('@anthropic-ai/sdk');

const api = new Anthropic({
  baseURL: 'https://api.ai.cc/',
  authToken: '',
});

const main = async () => {
  const message = await api.messages.create({
    model: 'anthropic/claude-fable-5',
    max_tokens: 2048,
    system: 'You are an AI assistant who knows everything.',
    messages: [
      {
        role: 'user',
        content: 'Tell me, why is the sky blue?',
      },
    ],
  });

  console.log('Message:', message);
};

main();

                                        import asyncio
from anthropic import Anthropic

client = Anthropic(
    base_url="https://api.ai.cc/",
    auth_token="",
)


def main():
    message = client.messages.create(
        model="anthropic/claude-fable-5",
        max_tokens=2048,
        system="You are an AI assistant who knows everything.",
        messages=[
            {
                "role": "user",
                "content": "Hello, Claude",
            }
        ],
    )

    print("Message:", message.content)


if __name__ == "__main__":
    main()

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Claude Fable 5

Claude Fable 5 API Pricing

Type	Price
Input	$13 / 1M tokens
Output	$65 / 1M tokens

Claude Fable 5 Benchmarks

Benchmark	Score	What it measures
Terminal-Bench	88%	Autonomous shell/terminal task completion
SWE-bench Verified	95%	Resolving verified real GitHub issues

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