Anthropic: Claude Fable 5.2
Claude Fable 5.2 is Anthropic's most capable model for the most demanding technical work, with gains over Fable 5.1 in coding, reasoning, and vision. In prerelease testing it completed otherwise-infeasible software migrations, designed working electronic devices from scratch, and made progress on open problems in physics and mathematics. It communicates more clearly than earlier Fable models and generates output up to 30% faster than Fable 5.1. Adaptive extended thinking is always on, with reasoning effort levels from low to max (default high) and preserved thinking across turns. Anthropic recommends Opus 5.5 as the daily driver for most coding and knowledge work, with Fable 5.2 for the most ambitious, open-ended problems.
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此模型至少有一家供應商將你的輸入用於其自身目的,例如訓練 AI 模型。請勿輸入第三方的個人資料或敏感資料。你可以隨時在帳戶設定中或透過聊天中的「管理同意」反對此類使用。
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在線時長
效能
使用量與排名
支援的參數
所有提供方:為該模型提供服務的每個上游都支援。部分提供方:取決於處理請求的上游。預設值:未設定時傳送的值。
| 參數 | 提供方 | 預設值 |
|---|---|---|
| include_reasoning | 所有提供方 | - |
| max_completion_tokens | 部分提供方 | - |
| max_tokens | 所有提供方 | - |
| reasoning | 所有提供方 | - |
| reasoning_effort | 所有提供方 | - |
| response_format | 所有提供方 | - |
| stop | 所有提供方 | - |
| structured_outputs | 所有提供方 | - |
| tool_choice | 所有提供方 | - |
| tools | 所有提供方 | - |
| verbosity | 所有提供方 | - |
常見問題
在這些工具中使用 claude-fable-5.2
相似模型
基礎 URL
https://api.unorouter.com/v1從您的程式碼呼叫 claude-fable-5.2
將任何 OpenAI 相容 SDK 指向 UnoRouter,並以名稱請求模型。請將 YOUR_API_KEY 換成您儀表板上的真實金鑰。
curl https://api.unorouter.com/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-fable-5.2",
"messages": [{"role": "user", "content": "Hello!"}]
}'