Dev tools · alternatives · 2026
24 alternatives to Metarank – open-source hybrid search with LLMs
A small demo for a Metarank open-source project I'm maintaining.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Metarank – open-source hybrid search with LLMs launched in 2023; newer entries below may have overtaken it.
- 1
Hey, HN! You probably know that the ordering of products on Amazon, posts in FB, and search results in Google is personalized for each visitor, as it directly affects conversion, click rate and engagement. But not everyone can afford to hire an army of PhDs to squeeze every penny out of the ranking, and not everyone agrees on the current (im)balance between privacy and profits. So we built Metarank, an open-source and privacy-focused personalization engine. It can rerank in real-time any type of content, using only the data you allow, and optimize metrics you define. We made a lot of…
2022 · github.com · its alternatives →
- 2
Hey there HN! We’re Antonio, Luca, and Yuhang, and we’re excited to introduce Fast GraphRAG, an open-source RAG approach that leverages knowledge graphs and the 25 years old PageRank for better information retrieval and reasoning. Building a good RAG pipeline these days takes a lot of manual optimizations. Most engineers intuitively start from naive RAG: throw everything in a vector database and hope that semantic search is powerful enough. This can work for use cases where accuracy isn’t too important and hallucinations are tolerable, but it doesn’t work for more difficult queries that…
2024 · github.com · its alternatives →
- 3
I built this tool because I wanted a way to just take a bunch of URLs or domains, and query their content in RAG applications. It takes away the pain of crawling, extracting content, chunking, vectorizing, and updating periodically. I'm curious to see if it can be useful to others. I meant to launch this six months ago but life got in the way...
2024 · embedding.io · its alternatives →
- 4
Hello HN, I'm Ghita, co-founder of ZeroEntropy (YC W25). We build high accuracy search infrastructure for RAG and AI Agents. We just released two new state-of-the-art rerankers zerank-1, and zerank-1-small. One of them is fully open-source under Apache 2.0. We trained those models using a novel Elo score inspired pipeline which we describe in detail in the blog attached. In a nutshell, here is an outline of the training steps: * Collect soft preferences between pairs of documents using an ensemble of LLMs. * Fit an ELO-style rating system (Bradley-Terry) to turn pairwise comparisons into…
2025 · zeroentropy.dev · its alternatives →
- 5
We built Valohai LLM for tracking and comparing LLM evaluation results. Whether your evals live in notebooks and spreadsheets, or you're using an observability tool that wasn't built for comparison, this gives you a purpose-built eval comparison dashboard. Run evals with a Python library (pip install valohai-llm), results stream in, and you can compare up to 6 configurations side by side. Group by any dimension (model, category, difficulty) to see where each model excels. It doesn't do tracing or production observability, for now just eval tracking and comparison. What's cool is that you can…
2020 · valohai.com · its alternatives →
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- 7
I've built an advanced RAG (Retrieval-Augmented Generation) pipeline from scratch to demystify the complex mechanics of modern LLM-powered Question Answering systems. This repository features: -- An implementation of a sub-question query engine from scratch to answer complex user questions. -- Illustrative explanations that unveil the inner workings of the system. -- An analysis of the challenges I faced while working with the system, like prompt engineering and cost estimation. -- Qualitative comparison with similar frameworks like LlamaIndex, offering a broader perspective. Key Takeaway:…
2023 · github.com · its alternatives →
- 8
Open source recommendation engine on Spark + Elasticsearch
2015 · templates.prediction.io · its alternatives →
- 9
- 10
Hey folks, Elias here. Excited to unveil my latest project. Why I Built This: Traditional keyword search isn't cutting it. I've used LLM-embeddings to provide more nuanced, relevant results. How It Works: LLM-embedding similarity on curated datasets for semantically similar results. No need to iterate over keywords any more. Current Datasets: - YC Companies - Show HN Posts, - Ask HN Posts - ProductHunt Startups - Github Top 200k Repos Use Cases: - Validate a product idea's existence - Check if someone already Asked HN something - Have fun - search random terms and see what pops up Want to…
2023 · payperrun.com · its alternatives →
- 11
Hey everyone! I’m excited to announce the release of my last project, MiniSearch. I admire Perplexity.ai, Phind.com, You.com, Bing, Bard and all these search engines integrated with AI chatbots. And as a curious developer, I took the chance and created my own version. Using Web-LLM and Transformers.js to provide browser-based text-generation models on desktop and mobile, I built a minimalist self-hosted search app on which an AI analyses the results, comments on them and responds to your query summarising the info. In the backend, it still queries a real search engine, but besides that,…
2023 · huggingface.co · its alternatives →
- 12
Hey folks, There has been some talk about search engines here so I thought maybe I'd share a new project I'm working on. Built it partly to help me sell my own projects. Still a lot of work to be done but would be happy to get feedback. Very early phase so don't trust your life with it. Cheers --- Edit: if anyone needs a free/no CC account just DM me on https://www.linkedin.com/in/crufter/
2024 · singulatron.com · its alternatives →
- 13
Happy to release FastPlaid, which aim to ease and accelerate ColBERT and ColPali retrieval
2025 · github.com · its alternatives →
- 14
- 15TS
2021 · thesocialsearchengine.com · its alternatives →
- 16OC
2012 · opensignalmaps.com · its alternatives →
- 17
GitHub▲12retrieval, re-ranking, and retrieval-augmented generation
2025 · github.com · its alternatives →
- 18SE
2015 · searchexplorer.com · its alternatives →
- 19
I was frustrated with how complex and expensive most rank tracking tools are. I wanted something that was both powerful and beautifully simple. That's Rank! helps you: • Track rankings for up to 15 domains and 300 keywords • Get daily rank updates automatically • View historical ranking data and trends • Access advanced reporting features • Monitor competitor rankings (coming soon) • Get ranking change alerts (coming soon) It's completely free while in beta! Please try it out :-)
2025 · thatisrank.com · its alternatives →
- 20TS
2013 · kbhpodhnfxl3clb4.onion.to · its alternatives →
- 21UV
2021 · unisearch.cloud · its alternatives →
- 22
SearXNG — a privacy-respecting, open metasearch engine
15d ago · search.my-yacy-node.org · its alternatives →
- 23IM
When your embedding provider is good, but could be better for your use-case.
2024 · zoplabs.com · its alternatives →
- 24
Hi HN, Our research team just released the best performing and most efficient reranker out there, and it's available now as an open weight model on HuggingFace. Reranker v2 was designed specifically for agentic RAG, supports instruction following (our v1 was the first to introduce this), and is multilingual. Along with this, we're also open source our eval set, which allows you to reproduce our benchmark results. By releasing these datasets, we are also advancing instruction-following reranking evaluation, where high-quality benchmarks are currently limited. Please give it a try and let us…
2025 · huggingface.co · 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 →