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Products that do what FinetuneDB – AI fine-tuning platform to create custom LLMs does

Hey HN! We’re building FinetuneDB (https://finetunedb.com/), an LLM fine-tuning platform. It enables teams to easily create and manage high-quality datasets, and streamlines the entire workflow from fine-tuning to serving and evaluating models with domain experts. You can check out our docs here: (https://docs.finetunedb.com/) FinetuneDB exists because creating and managing high-quality datasets is a real bottleneck when fine-tuning LLMs. The quality of your data directly impacts the performance of your fine-tuned models, and existing tools didn’t offer an easy…

  1. 1

    AI fine-tuning platform to create custom LLMs

    2024

  2. 2FL

    Hi HN community, I have been working on benchmarking publicly available LLMs these past couple of weeks. More precisely, I am interested on the finetuning piece since a lot of businesses are starting to entertain the idea of self-hosting LLMs trained on their proprietary data rather than relying on third party APIs. To this point, I am tracking the following 4 pillars of evaluation that businesses are typically look into: - Performance - Time to train an LLM - Cost to train an LLM - Inference (throughput / latency / cost per token) For each LLM, my aim is to benchmark them for…

    2023 · github.com

  3. 3

    LLM reinforcement fine-tuning platform to improve LLM output

    2025

  4. 4
    FineTuner164

    Fine-tune AI models on your data — in minutes, not days.

    2025

  5. 5FT

    Aug 2026 · github.com

  6. 6
    LLM Stats308

    Compare API models by benchmarks, cost & capabilities

    Oct 2025

  7. 7

    Open-source stack for industrial-grade LLM applications

    2025

  8. 8

    Open source data labelling platform for AI model tuning

    2023

  9. 9CY

    Hello HN, We built Promptrepo to make finetuning accessible to product teams — not just ML engineers. Last week, OpenAI’s CPO shared how they use fine-tuning for everything from customer support to deep research, and called it the future for serious AI teams. Yet most teams I know still rely on prompting, because fine-tuning is too technical, while the people who have the training data (product managers and domain experts) are often non-technical. With Promptrepo, they can now: - Add training examples in Google Sheets - Click a button to train - Deploy and test instantly - Use OpenAI,…

    2025 · promptrepo.com

  10. 10
    Taylor AI118

    Fine-tune open source LLMs in minutes

    2023

  11. 11

    The ultimate no-code solution for building AI agents

    2023

  12. 12

    The low-code platform for testing AI apps

    2024

  13. 13LF

    100% bootstrapped new startup. It lets you fine tune Mistral-7B and SDXL. In particular, for the LLM fine tuning we implemented a dataprep pipeline that turns websites/pdfs/doc files into question-answer pairs for training the small LLM using an big LLM. It includes a GPU scheduler that can do finegrained GPU memory scheduling (Kubernetes can only do whole-GPU, we do it per-GB of GPU memory to pack both inference and fine tuning jobs into the same fleet) to fit model instances into GPU memory to optimally trade off user facing latency with GPU memory utilization It's a pretty…

    2023 · docs.helix.ml

  14. 14
    Laminar360

    Open-source all-in-one platform for engineering AI products

    2024

  15. 15LF
  16. 16
    LLM Spark365

    Dev platform for building production ready LLM apps

    2023

  17. 17FG

    We developed a new framework that enables flexible control of generated text in language models. By combining several models and/or system prompts in one mathematical formula, it lets you tweak your style and combine model outputs with ease. A handy tool for those working with LLMs, looking for more fine-grained control of stylistic output. More details in our paper: https://arxiv.org/abs/2311.14479. Feedback and potential applications are welcome.

    2023 · github.com

  18. 18LF

    We’ve built a LLM fine-tuning SDK that supports Llama 3.1 right now. We’d love your feedback, and are happy to give extra free credits if you try the product and jump on a 15 minute call and provide feedback :)

    2024 · docs.luminolabs.ai

  19. 19

    Fine-tune AI models with your augmented data

    Oct 2025

  20. 208F

    Hi HN! I'm just sharing a project I've been working on during the LLM Efficiency Challenge - you can now finetune Llama with QLoRA 5x faster than Huggingface's original implementation on your own local GPU. Some highlights: 1. Manual autograd engine - hand derived backprop steps. 2. QLoRA / LoRA 80% faster, 50% less memory. 3. All kernels written in OpenAI's Triton language. 4. 0% loss in accuracy - no approximation methods - all exact. 5. No change of hardware necessary. Supports NVIDIA GPUs since 2018+. CUDA 7.5+. 6. Flash Attention support via Xformers. 7. Supports 4bit and 16bit…

    2023 · github.com

  21. 21

    Use any AI model with just one API

    2025

  22. 22TF

    Hello all! Very happy to share this toolkit that allows you to fine-tune your choice of open-source LLMs on your data! The toolkit also allows you to run ablation studies across LLMs, prompt designs, training configurations, and can ingest different data files -- all through just ONE YAML file! After fine-tuning, you can also run a bunch of tests to ensure that the fine-tuned LLM behaves as expected, enabling faster time-to-production! Why this toolkit? Why now? While closed-source LLMs have become popular for chat-based applications, enterprises are considering a shift to self-hosted SLMs…

    2024 · github.com

  23. 23
    Arkor142

    Fine-tune and Deploy Open-weight Models in TypeScript

    Jul 2026 · arkor.ai

  24. 24TO

    Hi HN! We're Gabriel & Viraj, and we're excited to open source TensorZero. To be a little cheeky, TensorZero is an open-source platform that helps LLM applications graduate from API wrappers into defensible AI products. 1. Integrate our model gateway 2. Send metrics or feedback 3. Unlock compounding improvements in quality, cost, and latency It enables a data & learning flywheel for LLMs by unifying: • Inference: one API for all LLMs, with <1ms P99 overhead • Observability: inference & feedback → your database • Optimization: better prompts, models, inference strategies • Experimentation:…

    2024 · github.com

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