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Cursor Composer 2 is just Kimi K2.5 with RL

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Re: Cursor Composer 2 is just Kimi K2.5 with RL

#2

Post by Sammi »

As a paying customer, it just doesn't feel good that they are trying to pass off someone else's model as their own.

I mean I guess this is what businesses do all the time. There's a term for it even, it's called white-labeling.

But is this all that Cursor have? They pass of VS Code as their own, they pass off Kimi as their own... What do Cursor even do? What do I need them for?

Re: Cursor Composer 2 is just Kimi K2.5 with RL

#3

Post by jstanley »

Sammi wrote: post #2

As a paying customer, it just doesn't feel good that they are trying to pass off someone else's model as their own. I mean I guess this is what businesses do all the time. There's a term for it even, it's called white-labeling. But is this all that Cursor have? They pass of VS Code as their own, they pass off Kimi as their own... What do Cursor even do? What do I need them for?

As a paying customer, I don't care where the model comes from, I only care how good it is.

Re: Cursor Composer 2 is just Kimi K2.5 with RL

#4

Post by Sammi »

jstanley wrote: post #3
Sammi wrote: post #2

As a paying customer, it just doesn't feel good that they are trying to pass off someone else's model as their own. I mean I guess this is what businesses do all the time. There's a term for it even, it's called white-labeling. But is this all that Cursor have? They pass of VS Code as their own, they pass off Kimi as their own... What do Cursor even do? What do I need them for?

As a paying customer, I don't care where the model comes from, I only care how good it is.

Sure, and also at what price point.

But can I rely on Cursor to be able to keep delivering, when they aren't the one's doing the work themselves?

Re: Cursor Composer 2 is just Kimi K2.5 with RL

#6

Post by rvz »

Honestly I don't think this leak is any good for Cursor. Not only this appears as a violation to Moonshot's ToS, this may also be in fact enough evidence for Anthropic to ban Cursor from using their models, just like they are doing to OpenCode.

Why? As I said before, Anthropic mentions Moonshot AI (Maker of the Kimi models) as one of the AI labs that were part of this alleged "distillation attack" [0] campaign and will use that reason to cut off Cursor, Just like they did to OpenAI, xAI and OpenCode.

Let's see if the market thinks Composor 2 is really that good without the Claude models helping Cursor. (If Anthropic cuts them off).

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

Re: Cursor Composer 2 is just Kimi K2.5 with RL

#7

Post by gillesjacobs »

Cursor is mostly an IDE / coding-agent harness company. So it probably makes sense for them not to train their own base model, but instead license something like Kimi and fine-tune it for their own harness and workflows.

Their moat looks pretty thin. A VSCode fork with an open-source LLM fork on top. In the fast-moving coding-agent market, it’s not obvious they keep their massive valuation forever.

Re: Cursor Composer 2 is just Kimi K2.5 with RL

#8

Post by khuey »

Sammi wrote: post #2

As a paying customer, it just doesn't feel good that they are trying to pass off someone else's model as their own. I mean I guess this is what businesses do all the time. There's a term for it even, it's called white-labeling. But is this all that Cursor have? They pass of VS Code as their own, they pass off Kimi as their own... What do Cursor even do? What do I need them for?

White-labeling may be slightly dishonest to the consumer but the manufacturer and distributor are honest with each other. That doesn't appear to be the case here (Kimi's license requires publicly acknowledging Kimi is used for anyone operating at Cursor's scale).
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