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What does it even mean?
Claude Code is a so called "harness" - a thing that builds a context for LLMs, calls LLMs, executes tool calls etc. It uses various Anthropic models under the hood.
It can also use other models AFAIK.
It cannot be "trained".
Sorry if this comment sounds nitpicky, I'm just annoyed by the imprecise use of terminology.
> This is a library showing you how to train your own Claude Code end-to-end. What does it even mean? Claude Code is a so called "harness" - a thing that builds a context for LLMs, calls LLMs, executes tool calls etc. It uses various Anthropic models under the hood. It can also use other models AFAIK. It cannot be "trained". Sorry if this comment sounds nitpicky, I'm just annoyed by the imprecise use of terminology.
Any practitioners can elaborate?
Tangential (but topical in that "The threat is comfortable drift toward not understanding what you're doing" is also on the front page): Is the generated python code in the example wrong? The prompt > Develop a Python function that removes any falsey values from a list. Return the modified list without creating a new one. Is answered with list comprehension, which makes a new list and leaves the original unmodified (…
> This is a library showing you how to train your own Claude Code end-to-end. What does it even mean? Claude Code is a so called "harness" - a thing that builds a context for LLMs, calls LLMs, executes tool calls etc. It uses various Anthropic models under the hood. It can also use other models AFAIK. It cannot be "trained". Sorry if this comment sounds nitpicky, I'm just annoyed by the imprecise use of terminology.
Tangential (but topical in that "The threat is comfortable drift toward not understanding what you're doing" is also on the front page): Is the generated python code in the example wrong? The prompt > Develop a Python function that removes any falsey values from a list. Return the modified list without creating a new one. Is answered with list comprehension, which makes a new list and leaves the original unmodified (…
Does this really work? Does this how Anthropic works? Any practitioners can elaborate?
Many recent OSS models have great tech reports where you can learn more about these kind of things: Kimi 2.5 https://github.com/MoonshotAI/Kimi-K2.5/blob/master/tech_rep... GLM 5 https://arxiv.org/abs/2602.15763 DeepSeek R1 https://arxiv.org/pdf/2501.12948
> This is a library showing you how to train your own Claude Code end-to-end. What does it even mean? Claude Code is a so called "harness" - a thing that builds a context for LLMs, calls LLMs, executes tool calls etc. It uses various Anthropic models under the hood. It can also use other models AFAIK. It cannot be "trained". Sorry if this comment sounds nitpicky, I'm just annoyed by the imprecise use of terminology.
I see what you mean, but I disagree. I expect that Claude Code is backed by a separate post-train of Claude base which has been trained using the Claude Code harness and toolset.