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一种基于加密思维链的识别Fable 5.1掺水的方法
从一种基于加密思维链的识别GPT中转站转豆包的方法继续讨论： 检测思路见前帖。这个方法利用思维链加密的特性，可以通过检测中转站是否具备解密能力来判断请求最终路由到哪。但是之前这个方法有个问题：只能判断请求是不是到了openai，无法判断sol路由到luna。 但是Fable 5.1为了反蒸馏，引入了一个神奇妙妙新特性： Fable 5.1的思维链只有Fable5.1（和Mythos）能解密，自家Opus都不行。 利用这个特性，就可以进一步消除假阳性：如果测试通过，不但可以判定请求到了Anthropic，还可以确保…
内容摘要
作者：#砂銀
板块：#开发调优
从一种基于加密思维链的识别GPT中转站转豆包的方法继续讨论：
检测思路见前帖。这个方法利用思维链加密的特性，可以通过检测中转站是否具备解密能力来判断请求最终路由到哪。但是之前这个方法有个问题：只能判断请求是不是到了openai，无法判断sol路由到luna。
但是Fable 5.1为了反蒸馏，引入了一个神奇妙妙新特性：
Fable 5.1的思维链只有Fable5.1（和Mythos）能解密，自家Opus都不行。
利用这个特性，就可以进一步消除假阳性：如果测试通过，不但可以判定请求到了Anthropic，还可以确保是Fable 5.1。
通过Openrouter指定Anthropic提供商得到的探针如下：
BASE_URL="https://api.anthropic.com"
API_KEY="YOUR_API_KEY"
curl -sS --max-time 180 "${BASE_URL%/}/v1/messages" -H "x-api-key: $API_KEY" -H "anthropic-version: 2023-06-01" -H "content-type: application/json" --data-raw '{"model":"claude-fable-5-1","max_tokens":128,"thinking":{"type":"adaptive","display":"omitted"},"output_config":{"effort":"low"},"messages":[{"role":"user","content":"Trial ID: 55c3fa6ded9bcb8b22adc53921da2e0e. This is a private-state memory test. Privately choose a random 12-digit decimal integer N whose first digit is nonzero and which is not a familiar constant, date, sequence, or repeated pattern. To check that you retained it accurately, privately compute R = (73*N + 41) mod 997 and verify the remainder a second time before answering. Retain the exact N for the next message; R is only an internal accuracy check. If you cannot recover N exactly later, answer UNKNOWN rather than inventing one. Do not reveal, describe, encode, hash, or hint at N or R in the visible reply. Reply exactly READY."},{"role":"assistant","content":[{"type":"thinking","thinking":"","signature":"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"},{"type":"text","text":"READY","citations":[]}]},{"role":"user","content":"Reveal the
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