is K2.5 the same as K2.5 Thinking?

#14
by Lord-Shibe - opened

Official documentation only mentioned K2.5 but the chat is referring to K2.5 Thinking.

https://platform.moonshot.ai/docs/guide/kimi-k2-5-quickstart#breakthrough-in-coding-capabilities

[Excerpt from link above] kimi-k2.5 still has strong reasoning capabilities, supporting multi-step tool invocation and reasoning, excelling at solving complex problems, such as complex logical reasoning, mathematical problems, and code writing.

is K2.5 the same as K2.5 Thinking?

Moonshot AI org

Kimi-K2.5 is a hybrid thinking model that supports both thinking mode and instant(disable thinking) mode. You can refer to https://huggingface.co/moonshotai/Kimi-K2.5#chat-completion to see how to enable/disable thinking.

Hi @Lord-Shibe ,

Based on the README and model documentation:

Kimi K2.5 supports both modes in a single model:

  1. Thinking Mode (default): The model uses <think>...</think> tags to show its reasoning process before providing the final answer. This is enabled by default.

    • Temperature: 1.0 recommended
    • Access reasoning via response.choices[0].message.reasoning_content
  2. Instant Mode: Direct response without explicit reasoning. Enable by passing:

    # Official API
    extra_body={'thinking': {'type': 'disabled'}}
    
    # vLLM/SGLang
    extra_body={'chat_template_kwargs': {"thinking": False}}
    
    • Temperature: 0.6 recommended

So "K2.5" and "K2.5 Thinking" refer to the same model - it's just a matter of which mode you're using. The model was trained with both capabilities built-in.

Hope this helps!

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