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AI · alternatives · 2026

24 alternatives to Openlayer

Test, fix, and improve your ML models

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

  1. 1

    Hey HN, my name is Vikas, and my cofounders Rish, Gabe and I are building Openlayer: http://openlayer.com/ Openlayer is an ML testing, evaluation, and observability platform designed to help teams pinpoint and resolve issues in their models. We were ML engineers experiencing the struggle that goes into properly evaluating models, making them robust to the myriad of unexpected edge cases they encounter in production, and understanding the reasons behind their mistakes. It was like playing an endless game of whack-a-mole with Jupyter notebooks and CSV files — fix one issue and…

    2023 · openlayer.com · its alternatives →

  2. 2
    Openlayer▲197

    Slack or email alerts for when your AI fails

    2023 · openlayer.com · its alternatives →

  3. 3

    Open source tool for testing & validating your model & data

    2022 · github.com · its alternatives →

  4. 4

    Open-source LLM Observability for Developers

    2024 · helicone.ai · its alternatives →

  5. 5
    OpenSEO▲928

    Hello! For the last 2 months, I've been building OpenSEO. It's a user friendly UI wrapping the DataForSEO API which has high quality SEO data for keywords, backlinks, AI SEO and competitor research. Instead of paying $100+ per month, you buy DataForSEO credits and pay only for usage. The coolest thing about the project so far has been hearing about what people are building on top of it. People are using coding agents to quickly integrate with Google Search Console, Google Ads and building their own AI SEO and reporting features. Many were already building their own custom solutions around…

    Jul 2026 · openseo.so · its alternatives →

  6. 6

    OpenTelemetry-native observability for agents and LLMs

    Aug 2026 · openobserve.ai · its alternatives →

  7. 7

    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:…

    2025 · github.com · its alternatives →

  8. 8

    Hi HN, we built an open source model gateway. It's a single place to manage our own self hosted, frontier, and open source models in one place. It’s is rust native, built for concurrency, and implements all the config quirks across models and providers (streaming formats, tool calls, model parameters, rate limits, and different error behavior). The gateway adds under 1 ms for BYOK requests and under 2 ms when Experiential supplies the provider key. It has every major inference provider, and 1000+ models refreshed daily via a codex agent that opens a PR. Compared to other similar projects…

    Aug 2026 · github.com · its alternatives →

  9. 9
    Taglayer▲375

    No-code customer experiences

    2023 · taglayer.com · its alternatives →

  10. 10
    Helix▲153

    Train your own AI with open-source AI and your data

    2023 · helix.ml · its alternatives →

  11. 11
    Plexe▲273

    Build and deploy ML models in English

    Oct 2025 · plexe.ai · its alternatives →

  12. 12
    StackML▲252

    Machine Learning platform in-browser, for creators

    2019 · its alternatives →

  13. 13
    oqoqo▲325

    Most benchmarks today exist in curated environments and do not translate well to the real world. We built Oqoqo to bridge this gap. Oqoqo makes it super simple to build realistic evals and custom benchmarks for tasks users actually care about. Oqoqo can: - Reliably measure how agent friendly your product surfaces are against Codex, Claude Code, OpenClaw, Hermes, Pi, Opencode, Cursor, GitHub Copilot - Regression test MCP, CLI, skills, SDK, and any agent facing interface (we are continuously using Oqoqo to dogfood and improve our own MCP&#x2F;CLI) - Create and share custom benchmarks for how…

    Aug 2026 · oqoqo.ai · its alternatives →

  14. 14
    Openlit▲152

    One click observability & evals for LLMs & GPUs

    2024 · openlit.io · its alternatives →

  15. 15
    Layer AI▲124

    Metadata store for production ML

    2022 · layer.ai · its alternatives →

  16. 16

    Hey HN, Nir, Gal and Tomer here. We’re open-sourcing a set of extensions we’ve built on top of OpenTelemetry that provide visibility into LLM applications - whether it be prompts, vector DBs and more. Here’s the repo: https:&#x2F;&#x2F;github.com&#x2F;traceloop&#x2F;openllmetry. There’s already a decent number of tools for LLM observability, some open-source and some not. But what we found was missing for all of them is that they were closed-protocol by design, vendor-locking you to use their observability platform or their proprietary framework for running your LLMs. It’s still early in the…

    2023 · github.com · its alternatives →

  17. 17
    Zoo▲234

    A free, open-source playground for AI image models

    2023 · zoo.replicate.dev · its alternatives →

  18. 18

    Open source data labelling platform for AI model tuning

    2023 · labelstud.io · its alternatives →

  19. 19

    Open source monitoring for AI & ML

    2023 · github.com · its alternatives →

  20. 20

    connect nodes to build AI pipelines, powered by Hugging Face

    2024 · gradio.app · its alternatives →

  21. 21

    Accelerate your machine learning experimentation

    2020 · docs.voxel51.com · its alternatives →

  22. 22

    Trace AI requests, workflows, and costs in one timeline

    May 2026 · its alternatives →

  23. 23
    ZenML▲84

    Create reproducible machine learning pipelines

    2020 · github.com · its alternatives →

  24. 24

    Use and compare GPT-6, Claude 5, Gemini 3 and more chatbots simultaneously

    2023 · chathub.gg · 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 →