# 模型归因难题：调用Fable API无法证明Moonshot蒸馏了Fable

- 来源：Rohan Paul (@rohanpaul_ai)
- 发布时间：2026-07-23 13:32
- AIHOT 分数：50
- AIHOT 链接：https://aihot.virxact.com/items/cmrx3hk6v005cro69cmcapmiy
- 原文链接：https://x.com/rohanpaul_ai/status/2080164153986331093

## AI 摘要

仅凭调用Fable API的日志无法证明Moonshot AI蒸馏了Anthropic的Fable模型用于开发K3。若Anthropic怀疑是蒸馏请求，该请求会被秘密重定向至Opus，Moonshot实际收到的是Opus而非Fable的回复。要证明Fable与K3相关，需提供每次补全的served-model ID、与K3训练任务关联的提取语料库，以及模型血统证据。

## 正文

There's also a model-attribution problem here.

Calling the Fable API does not prove Fable generated the response. Even if supposing Moonshot sent a request to the Fable API， if Anthropic suspects that its a distillation request， then the requst will be secretly redirected to Opus.

So Moonshot would then receive an Opus answer， not a Fable answer.

So even if the logs prove Moonshot extracted answers from Claude， but they would not automatically prove those answers came from Fable specifically.

To prove that Fable is related to K3， you'd need to show the served-model ID for each completion， the extracted corpus that is linked to K3 training jobs， and model-lineage evidence like a canary transfer， unique error fingerprints， or an ablation.

### 引用推文

> Director Michael Kratsios：We have information that Moonshot AI distilled Anthropic's Fable for the development of its K3 model. To do this they developed a sophisticated internal platfor...