[HN Gopher] DeepFabric - Generate high-quality synthetic dataset...
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       DeepFabric - Generate high-quality synthetic datasets at scale
        
       Author : decodebytes
       Score  : 83 points
       Date   : 2025-09-26 14:26 UTC (8 hours ago)
        
 (HTM) web link (lukehinds.github.io)
 (TXT) w3m dump (lukehinds.github.io)
        
       | jossclimb wrote:
       | How is the diversity, duplication?
        
         | tehryanx wrote:
         | based on the description, I think it's using something similar
         | to GLAN https://arxiv.org/abs/2402.13064
        
         | decodebytes wrote:
         | Very good, and even better with the new DAG approach - we have
         | been using great-expectations to bench and seeing very good
         | diversity and low amounts of duplication - you check out one of
         | the recent CoT examples here:
         | https://huggingface.co/datasets/lukehinds/deepfabric-devops-...
        
       | bumseltagbaerbi wrote:
       | "Synthetic CDOs"
        
       | scosman wrote:
       | If anyone's interested in synthetic data generation, we've built
       | a fully interactive visual tool for SDG. It supports generating
       | hierarchical topic trees like other tools, but we do two things
       | others don't:
       | 
       | First: fully interactive UI. This might sound unnecessary, but
       | synthetic data is a creative and iterative process. It helps to
       | review each step as you go, tweaking prompts. Are the topics
       | right? Are the inputs realistic? Are the outputs reasonable? Once
       | your prompts are dialed in, you can scale up the volume, but
       | there's a creative iterative process to get there.
       | 
       | Second: we have many templates for common synthetic data gen use
       | cases. For fine-tuning you want to focus on the breadth of
       | realistic inputs. For "bug" evals you want to trigger specific
       | error cases based on a description of the issue. For measuring
       | evaluators/LLM judges you need a topic tree mixing passing and
       | failing data. We also provide templates for common use cases:
       | bias, maliciousness, toxicity, jailbreaking, etc. These are good
       | to bootstrap the creative process above, but you can edit each to
       | meet your needs.
       | 
       | It's a free app on GitHub. Docs and videos:
       | https://docs.kiln.tech/docs/synthetic-data-generation
        
         | decodebytes wrote:
         | Ah right, kiln - Deepfabric was originally named promptwright ,
         | and I can see kiln has copied over some of our code and used it
         | for its synth-gen (which is a nice compliment!)
         | 
         | We are actually planning on moving to graphs now, which we are
         | seeing better results with over trees, check it out if you also
         | want to use them in kiln - but you might want to wait until we
         | validate a little more and lift it out of experimental.
         | 
         | I think the key difference between the two since kiln adopted
         | the same approach is the ability to generate reasoning / chain
         | of thought and export to alpaca, chatml, etc - along with
         | direct to unsloth.ai's formatting. I doubt we will have UI as
         | its for running on backend systems and part of an ML pipeline
         | along with being a library / SDK.
        
           | scosman wrote:
           | I personally wrote Kiln's SDG code myself -- no code was
           | copied from here or anywhere else. Not sure where that claim
           | is coming from, but it's not accurate.
           | 
           | I might have taken some of the prompts and modified them. I
           | didn't recognize the new name, do recognize the old one.
           | 
           | Edit:
           | 
           | - just confirmed. No code copied. Prompts were originally
           | from the Pluto library, then modified by the library above,
           | then modified again by me for Kiln.
           | 
           | - And just to clarify, Kiln has had supported for chain of
           | thought, reasoning, and all major export formats
           | (ChatML/Unsloth/OpenAI/Hugging Face). Plus API integrations
           | with Together, Fireworks, OpenAI, Google Vertex.
           | 
           | People should try both. I just want to clear on the origins
           | of the code/prompts, and the feature set.
        
             | decodebytes wrote:
             | no worries, its not a big deal - I saw promptwrights name
             | referenced in kilns source. Best of luck , looks like a
             | cool project.
        
               | reissbaker wrote:
               | Line 1 makes it pretty clear:                   # The
               | contents of this file are adapted from the promptwrite
               | library (https://github.com/StacklokLabs/promptwright),
               | # which was adapted from the pluto library
               | (https://github.com/redotvideo/pluto).
               | 
               | https://github.com/Kiln-
               | AI/Kiln/blob/d38a64b598bf21939263bed...
               | 
               | Curious how the OP "just confirmed. No code copied."
        
               | scosman wrote:
               | I read the code. I also remember writing the code and
               | that comment.
               | 
               | As disclosed: some prompt strings were taken and
               | modified, but none of the code was. The original strings
               | are using a templating library that we don't support, so
               | their code/strings wouldn't have worked in our codebase,
               | nor would the wrapping code. Those interfaces/LOC are all
               | unique. It's possible for some "content" to be taken
               | (partial prompt strings), but zero code, and the
               | statement "copied over some of our code and used it" to
               | be incorrect.
               | 
               | Not trying to make a big deal of this, just clarifying
               | these are separate libraries, with no shared code. Looks
               | like the author saw the comment and assumed we used code
               | (vs prompts); not a big deal, but not the case. Their
               | work is super cool, and did inspire parts of my project.
               | 
               | Also worth noting, the library Pluto originated this
               | prompt (as far as I know), and it's been tweaked/evolved
               | many times over.
        
               | decodebytes wrote:
               | Hey There, this thread is getting derailed. Could you
               | please create a separate post for your project and we let
               | this one be for discussion of deepfabric, thanks!
        
               | scosman wrote:
               | Agreed, and sorry about that. Maybe edit the incorrect
               | comment about "I can see kiln has copied over some of our
               | code" for clarity. I get it was probably honest mistake,
               | but hard not to reply when people are claiming I copied
               | something I didn't. Great project, people go check out
               | deepfabric!
        
       | dcreater wrote:
       | are their good synthetic data sets generated from DeepFabric
       | publicly available?
        
         | decodebytes wrote:
         | sure, just starting to get some up on HF. A good example might
         | be GSM8K as this shows the structured output where every result
         | is strictly formatted - I am using this right now to train
         | models and managaing to get a small qwen model up in the 60%
         | range, which wildly is higher then llama2 and xAI Grok 1
         | 
         | GSM8K: https://huggingface.co/datasets/lukehinds/deepfabric-
         | GSM8K-c...
         | 
         | also some others
         | 
         | infra failures reasoning / CoT:
         | https://huggingface.co/datasets/lukehinds/deepfabric-devops-...
         | 
         | Medical (multi-turn):
         | https://huggingface.co/datasets/lukehinds/deepfabric-7k-medi...
         | 
         | Programming challenges:
         | https://huggingface.co/datasets/lukehinds/programming-challe...
         | 
         | If there is anything in particular you need, drop me a message
         | or feel free to open an issue and I can create something for
         | you.
        
       | crashabr wrote:
       | How easy it is to pass an existing db schema to this library in
       | order to generate a testable synthetic dataset?
        
         | decodebytes wrote:
         | I would love to learn more and have a try, I figure you can
         | dump out to txt or csv -
         | 
         | you can raise and issue and I will certainly give it a go - or
         | also reach me via the discord link on the main repo. Let's see
         | what we can do.
        
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       (page generated 2025-09-26 23:00 UTC)