Claude Fable 5.1 接入全教程：自适应思考、工具调用与 Fable5 迁移避坑

export ANTHROPIC_API_KEY="sk-ant-..."

pip install anthropic

import anthropicclient = anthropic.Anthropic()message = client.messages.create(    model="claude-fable-5-1",    max_tokens=1024,    messages=[{"role": "user", "content": "Hello"}])print(message.content[0].text)

message = client.messages.create(    model="claude-fable-5-1",    max_tokens=1024,    messages=[        {"role": "user", "content": "把这个崩溃追溯到根因并解释修复方案。"},        {"role": "assistant", "content": "..."},  # 上一轮助手消息        {"role": "user", "content": "在修复之前,先列出验证步骤。"},    ],)

curl https://api.anthropic.com/v1/messages \  -H "x-api-key: $ANTHROPIC_API_KEY" \  -H "anthropic-version: 2023-06-01" \  -H "content-type: application/json" \  -d '{"model":"claude-fable-5-1","max_tokens":1024,"messages":[{"role":"user","content":"Hello"}]}'

from openai import OpenAIclient = OpenAI(    base_url="https://api.aigateway.sh/v1",  # 换成你的网关    api_key="YOUR_GATEWAY_KEY",)resp = client.chat.completions.create(    model="anthropic/claude-fable-5.1",    messages=[{"role": "user", "content": "Hello!"}],    max_tokens=1024,)print(resp.choices[0].message.content)

message = client.messages.create(    model="claude-fable-5-1",    max_tokens=1024,    tools=[{        "name": "get_weather",        "description": "Get current weather for a city",        "input_schema": {            "type": "object",            "properties": {"city": {"type": "string"}},            "required": ["city"],        },    }],    messages=[{"role": "user", "content": "东京现在天气怎么样?"}],)

messages=[{    "role": "user",    "content": [        {"type": "text", "text": "解释这张架构图的问题。"},        {"type": "image", "source": {            "type": "base64",            "media_type": "image/png",            "data": "",        }},    ],}]

with client.messages.stream(model="claude-fable-5-1", max_tokens=1024,        messages=[{"role": "user", "content": "长篇报告。"}]) as stream:    for text in stream.text_stream:        print(text, end="", flush=True)