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Interconnects

Interconnects

著者： Nathan Lambert
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 Audio essays about the latest developments in AI and interviews with leading scientists in the field. Breaking the hype, understanding what's under the hood, and telling stories.

www.interconnects.aiInterconnects AI, LLC 科学
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  • 5 Thoughts on Kimi K2 Thinking

    5 Thoughts on Kimi K2 Thinking
    2025/11/06
    First, congrats to the Moonshot AI team, one of the 6 “AI Tigers” in China, on the awesome release of Kimi K2 Thinking. One of the overlooked and inspiring things for me these days is just how many people are learning very quickly to train excellent AI models. The ability to train leading AI models and distribute them internationally is going to be pervasive globally. As people use AI more, those who can access supply for inference (and maybe the absolute frontier in scale of training, even if costly) is going to be the gating function.K2 Thinking sounds like a joy to use because of early reports that the distinctive style and writing quality from their original Kimi K2 Instruct model have been preserved through extended thinking RL training. They released many evaluation scores, for a highlight they’re beating leading closed models on some benchmarks such as Humanity’s Last Exam or BrowseComp. There are still plenty of evals where GPT 5 or Claude Sonnet 4.5 tops them. Rumors are Gemini 3 is coming soon (just like the constantly pending DeepSeek V4), so expectations are high on the industry right now.TLDR: Kimi K2 Thinking as a reasoning MoE model with 1T total, 32B active parameters, 256K context length, interleaved thinking in agentic tool-use, strong benchmark scores and vibe tests.The core reaction of this release is people saying this is the closest open models have been to the closed frontier of performance ever, similar to DeepSeek R1‘s fast follow to o1. This is pretty true, but we’re heading into murky territory because comparing models is harder. This is all advantaging the open models, to be clear. I’ve heard that Kimi’s servers are already totally overwhelmed, more on this soon.What is on my mind for this release:1. Open models release faster. There’s still a time lag from the best closed to open models in a few ways, but what’s available to users is much trickier and presents a big challenge to closed labs. Labs in China definitely release their models way faster. When the pace of progress is high, being able to get a model out sooner makes it look better. That’s a simple fact, but I’d guess Anthropic takes the longest to get models out (months sometimes) and OpenAI somewhere in the middle. This is a big advantage, especially in comms, to the fast mover.I’d put the gap at the order of months in raw performance — I’d say 4-6+ months if you put a gun to my head and made me choose specifically — but the problem is these models aren’t publicly available, so do they matter?2. Key benchmarks first, user behaviors later. Labs in China are closing in and very strong on key benchmarks. These models also can have very good taste (DeepSeek, Kimi), but there is a long-tail of internal benchmarks that labs have for common user behaviors that Chinese labs don’t have feedback cycles on. Chinese companies will start getting these, but intangible’s are important to user retention.Over the last year+ we’ve been seeing Qwen go through this transition. Their models were originally known for benchmaxing, but now they’re legitimately fantastic models (that happen to have insane benchmark scores).Along these lines, the K2 Thinking model was post-trained natively with a 4bit precision to make it far more ready for real serving tasks (they likely did this to make scaling RL more efficient in post-training on long sequences too):To overcome this challenge, we adopt Quantization-Aware Training (QAT) during the post-training phase, applying INT4 weight-only quantization to the MoE components. It allows K2 Thinking to support native INT4 inference with a roughly 2x generation speed improvement while achieving state-of-the-art performance. All benchmark results are reported under INT4 precision.It’s awesome that their benchmark comparisons are in the way it’ll be served. That’s the fair way.3. China’s rise. At the start of the year, most people loosely following AI probably knew of 0 Chinese labs. Now, and towards wrapping up 2025, I’d say all of DeepSeek, Qwen, and Kimi are becoming household names. They all have seasons of their best releases and different strengths. The important thing is this’ll be a growing list. A growing share of cutting edge mindshare is shifting to China. I expect some of the likes of Z.ai, Meituan, or Ant Ling to potentially join this list next year. For some of these labs releasing top tier benchmark models, they literally started their foundation model effort after DeepSeek R1. It took many Chinese companies only 6 months to catch up to the open frontier in ballpark of performance, now the question is if they can offer something in a niche of the frontier that has real demand for users.4. Interleaved thinking on many tool calls. One of the things people are talking about with this release is how Kimi K2 Thinking will use “hundreds of tool calls” when answering a query. From the blog post:Kimi K2 Thinking can execute up to 200 – 300...
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    8 分
  • Burning out

    Burning out
    2025/10/25
    One of the obvious topics of the Valley today is how hard everyone works. We’re inundated with comments on “The Great Lock In”, 996, 997, and now even a snarky 002 (midnight to midnight with a 2 hour break). Plenty of this is performative flexing on social media, but enough of it is real and reflecting how trends are unfolding in the LLM space. I’m affected. My friends are affected.All of this hard work is downstream of ever increasing pressure to be relevant in the most exciting technology of our generation. This is all reflective of the LLM game changing. The time window to be a player at the most cutting edge is actually a closing window, not just what feels like one. There are many different sizes and types of models that matter, but as the market is now more fleshed out with resources, all of them are facing a constantly rising bar in quality of technical output. People are racing to stay above the rising tide — often damning any hope of life balance.Interconnects is a reader-supported publication. Consider becoming a subscriber.AI is going down the path that other industries have before, but on steroids. There’s a famous section of the book Apple in China, where the author Patrick McGee describes the programs Apple put in place to save the marriages of engineers traveling so much to China and working incredible hours. In an interview on ChinaTalk, McGee added “Never mind the divorces, you need to look at the deaths.” This is a grim reality that is surely playing out in AI.The Wall Street Journal recently published a piece on how AI Workers Are Putting In 100-Hour Workweeks to Win the New Tech Arms Race. The opening of the article is excellent to capture how the last year or two has felt if you’re participating in the dance:Josh Batson no longer has time for social media. The AI researcher’s only comparable dopamine hit these days is on Anthropic’s Slack workplace-messaging channels, where he explores chatter about colleagues’ theories and experiments on large language models and architecture.Work addicts abound in AI. I often count myself, but take a lot of effort to make it such that work expands to fill available time and not that I fill everything in around work. This WSJ article had a bunch of crazy comments that show the mental limits of individuals and the culture they act in, such as:Several top researchers compared the circumstances to war.Comparing current AI research to war is out of touch (especially with the grounding of actual wars happening simultaneously to the AI race!). What they really are learning is that pursuing an activity in a collective environment at an elite level over multiple years is incredibly hard. It is! War is that and more.In the last few months I’ve been making an increasing number of analogies to how working at the sharp end of LLMs today is similar to training with a team to be elite athletes. The goals are far out and often singular, there are incredibly fine margins between success and failure, much of the grinding feels over tiny tasks that add up over time but you don’t want to do in the moment, and you can never quite know how well your process is working until you compare your outputs with your top competition, which only happens a few times a year in both sports and language modeling.In college I was a D1 lightweight rower at Cornell University. I walked onto a team and we ended up winning 3 championships in 4 years. Much of this was happenstance, as much greatness is, but it’s a crucial example in understanding how similar mentalities can apply in different domains across a life. My mindset around the LLM work I do today feels incredibly similar — complete focus and buy in — but I don’t think I’ve yet found a work environment where the culture is as cohesive as athletics. Where OpenAI’s culture is often described as culty, there are often many signs that the core team members there absolutely love it, even if they’re working 996, 997, or 002. When you love it, it doesn’t feel like work. This is the same as why training 20 hours a week while a full time student can feel easy.Many AI researchers can learn from athletics and appreciate the value of rest. Your mental acuity can drop off faster than your physical peak performance does when not rested. Working too hard forces you to take narrower and less creative approaches. The deeper into the hole of burnout I get in trying to make you the next Olmo model, the worse my writing gets. My ability to spot technical dead ends goes with it. If the intellectual payoffs to rest are hard to see, your schedule doesn’t have the space for creativity and insight.Crafting the team culture in both of these environments is incredibly difficult. It’s the quality of the team culture that determines the outcome more than the individual components. Yes, with LLMs you can take brief shortcuts by hiring talent with years of experience from another frontier lab, but that doesn’t...
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    10 分
  • The State of Open Models

    The State of Open Models
    2025/10/16

    This talk covers everything that’s happened this year in the open model landscape — DeepSeek kickstarting the Chinese open model norms, Llama’s fade, Qwen’s dominance, GPT-OSS — and what comes next. It is my attempt to share what people need to know about where open models are heading, building on all of my research here at Interconnects and in my day job of training these models, in order to help us take the actions we need to steer it in a better direction.

    I strongly recommend watching (or listening, as it’s in the podcast feed) if any of the discussions around open models or Chinese AI impacts your decision making. This felt like one of the better talks I’ve given in a bit and I’m excited to keep expanding my coverage here.

    You can click through the slides here.

    Thanks to the organizers of The Curve for inviting me (and encouraging me to give this talk), and for permission to post this video.

    EDIT: I noticed sometimes the audio jumps weirdly, not sure what caused it (from slideslive export, raw is here: https://slideslive.com/39046297/open-models-in-2025-stakes-state-and-strategy)

    Chapters

    00:00 2025 so far05:53 China takes the lead15:54 What comes next21:20 What we should do25:00 Q & A

    (Podcast feed / Audio only version trims 7 seconds of silence to start)

    References & Recommended Reading

    * The ATOM Project

    * On China’s open-source community & trajectory

    * Ranking China’s open AI labs

    * On GPT-OSS

    * Recent open models

    * More on The Curve conference

    Of course, you can watch on YouTube:

    Listen on Apple Podcasts, Spotify, YouTube, and where ever you get your podcasts.



    This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.interconnects.ai/subscribe
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    47 分
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