Cursor Composer 2 is just Kimi K2.5 with RL

Post by ywvcbk » Mon, Mar 23, 2026, 7:12 AM UTC

hakunin wrote: post #162

satvikpendem wrote: post #157

Earlier quoted context omitted.

They said Chinese law, which is not the same as American law, and presumably using IP the way they have is legal there, if indeed they actually did, as allegations of IP theft are just that, allegations, and even if they weren't, all nations in the history of mankind have been "stealing" "intellectual property" since forever, including the US from Britain, literally with the good graces of the fledgling US government…

The linked wikipedia article specifically talks about China struggling to enforce Chinese law. Here's a quote: > Despite making efforts in intellectual property protection in China, a major obstacle in prosecution is corruption in courts; local protectionism and political influence prohibits effective enforcement of intellectual property laws. To help overcome local corruption, China established specialized IP courts…

Post by hakunin » Mon, Mar 23, 2026, 12:32 PM UTC

geocar wrote: post #172

hakunin wrote: post #169

Earlier quoted context omitted.

> Why is it China increasing cases is evidence of struggling to you? Do you think the US is also struggling? What exactly are you talking about? I didn't say anything about increasing cases. "a major obstacle in prosecution is corruption in courts; local protectionism and political influence prohibits effective enforcement of intellectual property laws" > we're talking about the majority of the US history, having law…

> I didn't say anything about increasing cases You also didn't read the source from where that link was from. > What matters is the order established in recent history. > Colonization was normalized Sounds pretty racist man.

Post by hakunin » Mon, Mar 23, 2026, 12:36 PM UTC

ywvcbk wrote: post #170

hakunin wrote: post #153

Earlier quoted context omitted.

> I think they probably acquire it in accordance with Chinese law. You can easily look up[1] how China struggles with effective enforcement of IP laws. And specifically for LLMs, Anthropic recently claimed that Chinese models trained on it without permission.[2] > Who are you quoting with those marks? Double quote marks have other uses besides direct quotes, such as signaling unusual usage.[3] In this case, talking a…

> claimed that Chinese models trained on it without permission That's extremely rich coming from Anthropic, though? Well they would know all about it of course...

Post by ajitid » Thu, Mar 26, 2026, 4:36 AM UTC

simplyluke wrote: post #109

htrp wrote: post #97

The cursor investor pitch was we're training our own models to do coding. If your amazing model is just an RL repack, you need a new pitch to justify your 50bn valuation https://www.bloomberg.com/news/articles/2026-03-12/ai-coding...

Any investor who believed a team their size and with their capital was training a SOTA base model doesn't understand the space. I fully believe that was some of their investors, but people acting like RL + fine tuning based on their massive user base that's producing qualitatively better outputs than the base model is meaningless aren't understanding what the company is doing.

Post by ajitid » Thu, Mar 26, 2026, 4:39 AM UTC

granitepail wrote: post #93

"Just" Kimi K2.5 with RL—people really misunderstand how difficult it is to achieve these reults with RL. Cursor's research team is highly respected within the industry, and what they've done is quite impressive. Before people go jumping to conclusions about model theft, it's worth considering the possibility that they did reach an agreement with Moonshot which their researchers were not aware of. That would certainl…