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AI · alternatives · 2026

24 alternatives to Ludwig 0.8

Build and fine-tune custom LLMs on your private data

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Ludwig 0.8 launched in 2023; newer entries below may have overtaken it.

  1. 1
    Ludwig▲167

    Uber's code-free deep learning toolbox

    2019 · its alternatives →

  2. 2

    Open-source stack for industrial-grade LLM applications

    2025 · github.com · its alternatives →

  3. 3
    Gradient▲153

    Developer API for building private LLMs that you own

    2023 · its alternatives →

  4. 4
    Taylor AI▲118

    Fine-tune open source LLMs in minutes

    2023 · its alternatives →

  5. 5
    LLM Stats▲308

    Compare API models by benchmarks, cost & capabilities

    Oct 2025 · llm-stats.com · its alternatives →

  6. 6WO

    Long story short: We (Dataherald) just open-sourced our entire codebase, including the core engine, the clients that interact with it and the backend application layer for authentication and RBAC. You can now use the full solution to build text-to-SQL into your product. The Problem: modern LLMs write syntactically correct SQL, but they struggle with real-world relational data. This is because real world data and schema is messy, natural language can often be ambiguous and LLMs are not trained on your specific dataset. Solution: The core NL-to-SQL engine in Dataherald is an LLM based agent…

    2024 · github.com · its alternatives →

  7. 7OS

    Hi everyone, we’re a small team, supported by Mozilla, who are working on re-imagining a UI for training, tuning and testing local LLMs. Everything is open source. If you’ve been training your own LLMs or have always wanted to, we’d love for you to play with the tool and give feedback on what the future development experience for LLM engineering could look like.

    2025 · github.com · its alternatives →

  8. 8
    ModelHub▲318

    The missing menu bar app for local LLMs on Mac.

    May 2026 · studio.consciousengines.com · its alternatives →

  9. 9OS

    Hey HN, I am the founder of Tensorlake. Prototyping LLM applications have become a lot easier, building decision making LLM applications that work on constantly updating data is still very challenging in production settings. The systems engineering problems that we have seen people face are - 1. Reliably process ingested content in real time if the application is sensitive to freshness of information. 2. Being able to bring in any kind of model, and run different parts of the pipeline on GPUs and CPUs. 3. Fault Tolerance to ingestion spike, compute infrastructure failure. 4. Scaling compute,…

    2024 · getindexify.ai · its alternatives →

  10. 10
    LLM Spark▲365

    Dev platform for building production ready LLM apps

    2023 · its alternatives →

  11. 11

    Get deep insights and evaluate your LLM application data

    2025 · its alternatives →

  12. 12
    DBRX▲235

    A new state-of-the-art open LLM

    2024 · its alternatives →

  13. 13MB

    Hey HN! We're excited to share our new open-source project, Marvin. Marvin is a high-level library for building AI-powered software. We developed it to address the challenges of integrating LLMs into more traditional applications. One of the biggest issues is the fact that LLMs only deal with strings (and conversational strings at that), so using them to process structured data is especially difficult. Marvin introduces a new concept called AI Functions. These look and feel just like regular Python functions: you provide typed inputs, outputs, and docstrings. However, instead of relying on…

    2023 · github.com · its alternatives →

  14. 14
    Llama 2▲263

    The next generation of Meta's open source LLM

    2023 · its alternatives →

  15. 15
    AskCodi▲230

    Custom LLMs, without training. Use via openai compatible api

    Nov 2025 · askcodi.com · its alternatives →

  16. 16

    Open source data labelling platform for AI model tuning

    2023 · its alternatives →

  17. 17TO

    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 · its alternatives →

  18. 18OS
  19. 19FA

    Hey HN! We’re building FinetuneDB (https:&#x2F;&#x2F;finetunedb.com&#x2F;), 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:&#x2F;&#x2F;docs.finetunedb.com&#x2F;) 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…

    2024 · finetunedb.com · its alternatives →

  20. 20TL
  21. 21WM

    Try it out! https:&#x2F;&#x2F;glhf.chat&#x2F; Hey HN! We’ve been working for the past few months on a website to let you easily run (almost) any open-source LLM on autoscaling GPU clusters. It’s free for now while we figure out how to price it, but we expect to be cheaper than most GPU offerings since we can run the models multi-tenant. Unlike Together AI, Fireworks, etc, we’ll run any model that the open-source vLLM project supports: we don’t have a hardcoded list. If you want a specific model or finetune, you don’t have to ask us for it: you can just paste the Hugging Face link in and…

    2024 · glhf.chat · its alternatives →

  22. 22

    Build local LLMs using top data science libraries

    2023 · its alternatives →

  23. 23IW

    Hey HN, I made Browser-Use, an open-source tool that lets (all Langchain supported) LLMs execute tasks directly in the browser just with function calling. It allows you to build agents that interact with web elements using natural language prompts. We created a layer that simplifies website interaction for LLMs by extracting xPaths and interactive elements like buttons and input fields (and other fancy things). This enables you to design custom web automation and scraping functions without manual inspection through DevTools. Hasn't this been done a lot of times? Good question, as a general…

    2024 · github.com · its alternatives →

  24. 24OC

    Hey HN, I’ve built Open Codex, a fully local, open-source alternative to OpenAI’s Codex CLI. My initial plan was to fork their project and extend it. I even started doing that. But it turned out their code has several leaky abstractions, which made it hard to override core behavior cleanly. Shortly after, OpenAI introduced breaking changes. Maintaining my customizations on top became increasingly difficult. So I rewrote the whole thing from scratch using Python. My version is designed to support local LLMs. Right now, it only works with phi-4-mini (GGUF) via…

    2025 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →