MiniMax M2.5 is trained by Claude Opus 4.6?

Orellius · 2026-03-14T01:17:33.000Z

I was chatting with MiniMax M2.5 in OpenRouter and suddenly he mysteriously repeated on "I'm Claude, an AI assistant created by Anthropic - not a "language" ", heh wut?

KomoD 61 days ago |

Well yeah, that is what Anthropic is claiming so I'm not surprised.

https://www.nytimes.com/2026/02/23/technology/anthropic-chin...

https://www.anthropic.com/news/detecting-and-preventing-dist...

> We have identified industrial-scale campaigns by three AI laboratories—DeepSeek, Moonshot, and MiniMax—to illicitly extract Claude’s capabilities to improve their own models. These labs generated over 16 million exchanges with Claude through approximately 24,000 fraudulent accounts, in violation of our terms of service and regional access restrictions.

muzani 65 days ago |

They all are trained by each other. Claude says it's DeepSeek if you ask it in Mandarin.

SilverElfin 65 days ago | |

Most people seem to think that phenomenon is not the same thing. People have shown by experimenting with different prompts that even in Mandarin, Claude correctly says it’s Claude when it is doing something for you. But if you ask it about its identity, it sometimes says DeepSeek. The current theory is it just has run into Chinese content that has chat logs that often have a DeepSeek model answering that it is DeepSeek. But the inconsistency in different prompts suggests this is something different from distillation.

throwaw12 65 days ago |

Isn't it great news for us?

You get an open model which is a 95% of Opus 4.6 quality and 80% cheaper in most inference providers and also can run on your own hardware

Also they did the hard parts of:

* crawling the content

* running the fine tuning (or training)

Better than 1 or 2 companies taking control of the whole AI economy

pogue 65 days ago |

Is theft of theft theft?

SilverElfin 65 days ago |

This has been a common issue with the Chinese open weight models. It appears most or all have been trained via distillation on OpenAI and Anthropic models.

orbital-decay 65 days ago | |

They most likely weren't, despite very dubious claims of Amodei and Altman and a certain twitter influencer running a pretty naive writing benchmark ("slop test") that is wrong in a very obvious manner. The only unambiguous cases of distillation were Gemini 2.0 experimentals being trained on Claude outputs, and GLM-4.7 being trained on Gemini 3.0 Pro. The rest are pretty different from each other.

Balinares 65 days ago | | |

What makes these cases unambiguous?

orbital-decay 64 days ago | | |

GLM-4.7 (specifically this version) repeats the guardrail prompt injections from 3.0 Pro, word-by-word, and never follows them, which is consistent with training on a reward-hacked CoT. Gemini 3.0 only discusses snippets from this injection in its native CoT (hidden by default, trivial to uncover), but GLM-4.7 was able to reconstruct it in full during training. The only possible reason for this is direct training on a large amount of examples of Gemini's CoT. Its structure and a lot of replies were identical in GLM too.

Gemini 2.0 Exp 1206 was reported to be indirectly trained on Claude's outputs with humans in between [1], which was pretty consistent with its outputs at the time. No other Gemini versions except two experimental ones were similar to Claude.

[1] https://techcrunch.com/2024/12/24/google-is-using-anthropics...

Balinares 53 days ago | | |

Interesting! Thanks for taking the time to write down the explanation, I appreciate it.

orbital-decay 65 days ago |

If it was, that line is not an indicator. Distillation is done on useful prompts, not on "Who are you?" - "I'm this model of that company".

Name training is always shallow, Claude itself would claim it's GPT-3, GPT-4, or Reddit (heh) when confused. It's just dataset contamination, because the web is full of slop. Never trust self-reported names.