Ember-1

(fireworks.ai)

167 points | by gmays 2 hours ago

22 comments

  • GodelNumbering 1 hour ago
    This is the golden age of model training. Some days ago, I decided I wanted a local CPU only model that can perform exceptionally well for English to Bash translation (to avoid the googling for command syntax). I got a bunch of subagents to generate large amount of training data (140k+ samples), got the Qwen 3 0.6B base model, pointed Astra at it, and off to the races. It trained for 2 days (on and off) and I got a surprisingly good model for my task! The total active time I spent was a few hours. And it is still improving, what a time to be alive!
    • amelius 10 minutes ago
      I don't understand. If you have a model that can do bash examples already (your subagents), then why would you need to train a model?

      Or are the subagents generating your training data using a closed/paid model?

      • Aurornis 3 minutes ago
        A very small, highly specialized model can use negligible resources (CPU, energy) to accomplish the same task.

        For everyday work that happens frequently it's better to have a tiny specialized model instead of making billable API calls or turning your laptop into an 80W space heater for 20 seconds.

        The large models can be used to generate synthetic training data. Tell them to make up 100,000 tasks paired with the resulting output as a 1-time cost. Then use that to train a small model.

        Think of it as distillation, but focused on a specific task.

      • computerex 4 minutes ago
        The models he is using to generate training data are presumably commercial models. He is distilling their bash knowledge into a much smaller model he can run locally fast and cheap.
    • luisfmh 39 minutes ago
      Curious about how you generated the training data? Was it just asking an existing model to generate a bunch of examples?

      I ask cause would this be a kind of model distillation?

      I have a small model I'm looking to train on some data, and I have some real live data but I'd love to be able to extend it.

      • toasty228 7 minutes ago
        It is a form of distillation, as long as you're working a very narrow "trivial" topics it works perfectly.
      • GodelNumbering 28 minutes ago
        All synthetic data. For this usecase, it was easier because all current generation LLMs, even the small models, are really good at bash commands (and SQL queries too)), so you can reasonably start batches of cheap subagents whose output is reviewed by a more capable model and merge into main training set. After 100k, I had to standing instructions to run the generation loops selectively, meaning only update samples in a given area where we see poor capability.
    • equinumerous 27 minutes ago
      That's a really impressive result. There are all kinds of small tasks like this I use an LLM for, but theoretically if you broke all the sub-use cases into local-only models, and had something lightweight that routed to the right model, you could have faster and cheaper workflows. E.g. something trained on the linux man pages for common commands, since it's usually quicker to ask an LLM for a specific command with flags than to consult the man pages.
    • shriphani 1 hour ago
      what hardware are you using to train?
      • GodelNumbering 1 hour ago
        I didn't have a local GPU, so I asked it to go out and find hardware. It found a google TPU v6e which seemed reasonably priced. I gave it my google api key. I told it to use TPU only when training and bring it down afterwards. That's about it.
        • libria 31 minutes ago
          > I gave it my google api key

          This is the part where the narrator looks at the camera and says "Don't try this at home, kids!"

          • MisterMunchkin 24 minutes ago
            You’re absolutely right, I shouldn’t have rented a 200 GPU cluster for $35,000/hour. That’s on me.

            [Search: Can I refund Google cloud?]

            It looks like we’re not able to ask for a refund since we did actually use all of that compute intentionally.

            Would you like me to write you a pleading email to send to the support team?

          • edot 25 minutes ago
            There’s a safer way to do this with nearly no added friction. Give it a read only API key. Then just ask it to write the API calls into a bash script and then read it and run it yourself. The agent can still inspect the live resources and diagnose and give you more commands to run. I do agree I wouldn’t give it create / write access.
          • bitpush 26 minutes ago
            Why? Isnt the API key scoped to a project and specifically made for this?

            Are you confusing this with an OAuth token or something?

            • raizer88 9 minutes ago
              Until astra goes bonkers and use the tpu for days
          • hgoel 19 minutes ago
            I've done this sort of thing before but with Vast. Pre-deposited some money online, then let the LLM request and manage a training run on an allocation. Worked pretty well without risking bankruptcy.
        • otterley 53 minutes ago
          What kind of observability did you have over this process? I’m interested in how my peers are operating these efforts.
          • GodelNumbering 43 minutes ago
            On the cloud side, nothing valuable existed, so the training couldn't ruin anything it didn't create. On the laptop side, I usually ask the agents to create named scripts for everything it needs to access, then those local script directory is green-lit with approve all. For cost, I kept giving it new budget in the 20-30 dollar increments.

            I had to intervene a few times. For instance, as smart as the models are said to be (Astra), it would copy the full training run, train on the server, pull every checkpoint to the local machine, then run tests, update. So, the bandwidth bill was as high as training bill for the first 6 hours. It could have simply tested each checkpoint on the server, saved time and money, didn't occur to it until I said.

        • varispeed 38 minutes ago
          > I told it to use TPU only when training and bring it down afterwards.

          I wouldn't put my house on it. Brave.

        • shriphani 57 minutes ago
          Neat!
    • PEe9bB7D 1 hour ago
      i also need more info!
      • GodelNumbering 1 hour ago
        I am thinking about opensourcing everything, although this is not my main domain or my main startup, so the overhead of huggingface etc seems a bit unnecessary
        • jjice 17 minutes ago
          Please do! Small, specialized models need more love and the time you spent would be a gift!
        • equinumerous 26 minutes ago
          +1, would like to see. Even if it's not fully "ready for consumption", it's probably enough to reproduce the results.
        • jack_pp 44 minutes ago
          just ask the agent to write it up if you don't have time to do a write-up yourself
        • atombender 16 minutes ago
          Would also love to read a write-up about this!
  • netvarun 1 hour ago
    Off topic:With sol pricing drop tbh kimi k3’s value prop has not been that great. For our internal use case/testing/benchmarks sol come out with way better quality and much cheaper costs. Kimi really needs to drop their pricing (I heard it’s set by them across all the neoclouds) Sol is at 2/10 vs kimi’s 3/15
    • pornel 40 minutes ago
      Competition is good. Without K3/GLM/DS4 etc. there would be no pressure on OpenAI to drop Sol's price.
    • drob518 1 hour ago
      Agreed. Even on the open weight side, GLM 5.3 has roughly equivalent performance to Kimi K3 for less than half the cost.
    • nostrebored 1 hour ago
      Agreed, I think the only place where it’s still interesting is ui design. Visually kimi and muse feel much nicer than frontier models to me, but maybe it’s an artifact of everything terrible being Claude Design
    • 7777777phil 9 minutes ago
      I was surprised by that. I run my benchmark [1] every couple of days and was sure this model will be ath the pareto frontier, if not THE pareto frontier. But no:

      Ember isn't picked yet. In planning, Opus 5.5 wins under the planning weights. In code, GPT-6 Sol dominates it: also 10/10, but with a higher quality score and a lower estimated cost. Ember has no intelligence index, so its starting score is only 0.73, which holds its 10/10 down to 0.954 against Sol's 0.975.

      [1] https://philippdubach.com/posts/jev-model-router-for-pi/

    • toasty228 6 minutes ago
      > With sol pricing drop

      6 or 5.6? Because 6 is hot garbage

  • jamienk 1 hour ago
    Ignoring for the moment issues of what "counts" as open, won't open models rapidly advance due to stuff like this in ways that it's less possible for the proprietary ones to do? This is exactly how Linux & Wikipedia, for example, overtook their "frontiers", right?
    • andsoitis 1 hour ago
      > Ignoring for the moment issues of what "counts" as open, won't open models rapidly advance due to stuff like this in ways that it's less possible for the proprietary ones to do? This is exactly how Linux & Wikipedia, for example, overtook their "frontiers", right?

      I suspect the advantage that catapulted Linux ahead of the establishment was less technical potential and talent and more organizational advantage. That's not to diminish the technical talent of the Linux crew, but them being unencumbered gave them more degrees of freedom. The rest is history.

      So as long as the AI companies don't succumb to "big company" dynamics, they can outlead. To wit: Open AI and Anthropic are kicking Google's ass.

      • mirekrusin 42 minutes ago
        I think people make mistake here, google’s approach is not to spend $2.3 on every $1.0 earned, they’re riding on serving to masses “luna”, they absolutely have way more powerful models internally but they don’t clutter their infrastructure with fragile and costly intelligence-of-size inference frontier. I think “underdog” perception is illusory/temporary, not stupidity - calculated, conscious, longer term bet.
      • jamienk 1 hour ago
        Diff people have diff motives to experiment, then new work is done on top of stuff that "hits" in a way no one anticipated. Then work gets piled on top in a way that might make it hard to port
        • andsoitis 1 hour ago
          > then new work is done on top of stuff that "hits" in a way no one anticipated.

          Indeed. And when you have freedom to play, you are able to find new stepping stones that you didn't anticipate. And you can combine stepping stones in new ways to make new discoveries.

          Greatness cannot be planned.

    • ssivark 31 minutes ago
      This was exactly the crux of Nathan Lambert's recent testimony to a group of US Congressional members/staff: https://www.interconnects.ai/p/the-current-balance-of-power-...
    • segmondy 1 hour ago
      No, because close labs/models borrow but don't contribute back.
    • swagatkonchada 1 hour ago
      Won't the "frontier" labs figure out whatever techniques were used and apply them to their closed models?
      • cyanydeez 1 hour ago
        Like how the last 2 decades of tech companies are thinly veiled open source pilfering into business units.
      • k__ 1 hour ago
        If they can keep up.

        The lock-in is less pronounced as it is with AWS or MS.

    • zeroq 1 hour ago
      The difference between contributing to OS and AI, is that the first is a hobby alternative to woodworking or hiking, while the other can easily bootstrap you a company you can get millions in investment, at least for time being.
    • intothemild 1 hour ago
      Yes, absolutely, but only if people keep contributing in the open.
      • jack_pp 1 hour ago
        not necessarily, just knowing something is possible will motivate others to achieve it somehow. Which is why there are so many LLMs and OAI doesn't have a monopoly
  • Arcuru 46 minutes ago
    Over on /r/LocalLLaMA there's a group that's been getting popular doing the same thing for the Qwen 27B (and other) models. - https://huggingface.co/ukisai
  • nico 1 hour ago
    > The problem: thinking models think too much

    This is partly the appeal of Jev et al; having a quick model for simple tasks, that doesn’t require that much thinking

    It’s amazing all the workflows that models like that can unlock. And yes, classifiers and other ML models have been around for a while for these types of tasks, but Jev has made it easy and cheap to play and experiment. This in turn, is incentivizing people to try them for a bunch of stuff, unlocking creativity and producing a lot of new cool (and eventually potentially very useful) applications

    • demibabs 1 hour ago
      What are the useful applications of Jev so far? Not to sound dismissive, I just haven’t seen what people are using it for yet.
      • neosat 1 hour ago
        Lots of use cases! I've personally used it for the following:

        1. Evals (once you have your rubric defined and tuned using a reasoning model, jev can be great for running periodic evals especially those that run daily.

        2. e-commerce catalog classification 3. quick search using anything as context and query mapping to a pre-defined set.

    • elcomet 1 hour ago
      Why not using a cheap LLM with thinking completely disabled ? I don't think it will be much more expensive than jev.
      • ssivark 24 minutes ago
        LLM inference has two very different regimes of work: prefill & decode. You can think of the former roughly as processing a pre-specified prompt, and the latter as sequential processing (auto-regressive token generation) eg. "chain of thought". The latter is very important for LLMs and cannot be ignored; it deeply influences infra design, even necessitates copious amounts of high-bandwidth memory. Jev-like models can ignore the latter and therefore optimize much better for the former, consequently operating at both better cost and latency.
      • nico 47 minutes ago
        I’ve tested this with some local LLMs and their accuracy is in general better than Jev/Laya, but they are super slow in comparison as well

        For example, a typical/stock LLM can’t really play Doom in real time, but a Jev-like model can. Just because of latency

        Of course, if you want the best Doom player, there are way better and faster adhoc models

  • andsoitis 1 hour ago
    > The problem: thinking models think too much

    Analysis paralysis stifles not just human intelligence, but other intelligences too.

    • minimaxir 44 minutes ago
      The thinking traces on some Chinese models just output the full response in the thinking trace, then output it again to the user, which is redundant.
    • AraneaDev 52 minutes ago
      Yes and thar makes you wonder if the Paradox of Choice would apply as well ;)

      The more options you have, the harder it becomes to be satisfied with the one you picked.

  • srameshc 21 minutes ago
    > The problem: thinking models think too much

    I see that with Opus 5, it started thinking like crazy in the last few days , I don't think my workflow is that complicated, still it gets into thinking mode and stays there

  • intothemild 1 hour ago
    So they trained a model on open weights, and then aren't releasing the weights... am I reading this right?
    • netvarun 1 hour ago
      Technically kimi k-3 weights license is not open weight (it has a lot of restrictions). I would classify it as ‘weight open’ similar to the bsl and fsl ’source open’ licenses.
      • Evidlo 1 hour ago
        weight available
    • DonsDiscountGas 1 hour ago
      It happens. Most open licenses aren't GPL style copyleft.
    • kingstnap 1 hour ago
      There is little to no point reading the article as well. It's stripped of all alpha.

      > task and environment feedback

      > on-policy planning and learning

      > feedback connects decisions to their consequences

      These are deliberately the least informative phrases you could possibly use to describe what you have done, while still being in the realm of words that go over a generic investor who has no idea whats going on and may be dazzled by sciencey sounding language.

      Cursor compose 2.5 article where they used and described on policy self distilation was actual alpha.

    • makeramen 1 hour ago
      Aren't Cursor Composer models like this too? At some point all the extra RL you do can be considered as proprietary information added.

      Not suggesting this is right or wrong, but is sort of the nature of the technology.

    • swagatkonchada 1 hour ago
      It happens with open source software all the time, why would we expect any different with open source weights.
      • reactordev 1 hour ago
        Because we do. The GPL isn't a suggestion. If you can take open source code and make private software out of it then what are we all doing? No, license requirements and agreement are law for a reason.
      • otterley 52 minutes ago
        Because the licenses that apply to software make no sense in the context of LLMs. With the latter, there is no source code to license.

        The words of a license are what the license is.

  • blissofbeing 10 minutes ago
    Would be nice to include in fire pass.
  • riquito 30 minutes ago
    Aside. I find the "cost per task" charts both useful and uncanny. Is It better a model that takes me to 90% in 1 dollar or one that takes me to 95% in 2 dollars? Or a different model that too scores 90% in 1 dollar? How much will it cost me the last 10% or 5%? At the end of the day, cost to 100% is what matters and the half (90%) backed solution may require more to reach 100% (or not, who knows?)
    • swiftcoder 2 minutes ago
      > Is It better a model that takes me to 90% in 1 dollar or one that takes me to 95% in 2 dollars?

      It's pretty important to understand if your own work domain is one where the last 5% matters. In a lot of day-to-day software engineering tasks, it doesn't, and one can get crazy mileage out of the cheaper models. OTOH, if you are performing novel research, that last 5% may be worth whatever it costs...

  • tomrod 1 hour ago
    Well done, and great iteration.

    The pareto frontier needs clearer distinction. Benchmarks miss half the story. What, if any, capability is lost by the token reduction (for example, was it like super awesome at Golang before and now kind of sucks? that kind of distinction).

    • drob518 1 hour ago
      Unfortunately, it’s hard to make a chart of that.
  • erichocean 1 hour ago
    Need this done for DeepSeek, ideally one of the Flash models.
    • drob518 1 hour ago
      And GLM. Both Deepseek 4.1 Flash and GLM 5.3 Flash are quote verbose when thinking.
    • atemerev 1 hour ago
      If you have the compute, I have the expertise.
  • tdhz77 1 hour ago
    Does anybody know if this would be a good model for creative writing?
    • combobyte 37 minutes ago
      > model

      > creative

      Choose one.

  • dbuxton 1 hour ago
    Do they mean Opus 5.5 or Opus 5?
  • themgt 1 hour ago
    The result? Ember-1 set a new Pareto frontier for Bedside Bench across both open and closed models including GPT-5.6 Sol, GPT-6 Astra, and Claude Opus 5 on cost/task.

    "Pareto": 8 hits

    "Opus 5.5": zero hits

    • wmf 1 hour ago
      Obviously this research was done before 6.0 Sol and Opus 5.5 came out. Your point stands that the frontier moves quickly and small gains can be eclipsed quickly.
  • ls612 1 hour ago
    On the smaller end, Quen 3.8, while being extraordinarily capable for a small local model, also suffers from extreme thinking. I wonder if the techniques described here generalize to other models too.
  • monkey_monkey 1 hour ago
    I don't think the article mentions Pareto frontier enough.

    Also, did I miss a memo? Suddenly every article on AI seems to be talking about the Pareto frontier - or have I just not been paying attention?

    • user43928 1 hour ago
      Pareto frontier on some benchmark that I am hearing of for the first time.

      Kimi K3 with less reasoning tokens isn't exactly exciting either, and particularly so if the license is less open than original Kimi K3.

    • AnodicElegy 1 hour ago
      I guess they figure "best bang for your buck" comes off a little too colloquial.
      • swiftcoder 0 minutes ago
        I would really love if we brought back some colloquialisms in this field. Not that long ago most folks in tech would have had pretty blank looks on their faces when someone started talking about the "Pareto frontier"
    • DonsDiscountGas 1 hour ago
      They want it to be the best at something. And it's obviously not the absolute smartest. So here we are.
  • logicallee 1 hour ago
    This is really interesting. I think the Fireworks Serverless Training infrastructure they used to develop it is also unique and needed. Except if someone works at one of a handful of the largest labs, it is very difficult to set up or try any sort of training pipeline. The managed training infrastructure makes it available to more people.
    • nostrebored 1 hour ago
      I can’t help but think it’s more expensive tinker.
  • esafak 1 hour ago
    It looks like it would be similar to GLM 5.3 Flash, had they tested it...
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