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AI · alternatives · 2026

24 alternatives to Siloam AI (alpha)

LLM-usage observability and monitoring tool

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1

    OpenTelemetry-native observability for agents and LLMs

    Aug 2026 · openobserve.ai · its alternatives →

  2. 2
    LLMWare▲358

    Dev tool to make AI apps to deploy privately or locally

    2024 · llmware.ai · its alternatives →

  3. 3

    Improve your LLM apps with open-source observability tool

    2024 · langtrace.ai · its alternatives →

  4. 4
    Evidently AIfree▲382

    Open-source evaluations and observability for LLM apps

    2024 · evidentlyai.com · its alternatives →

  5. 5
    TraceLLM▲100

    OpenTelemetry for production AI applications

    Jul 2026 · tracellm.in · its alternatives →

  6. 6
    Langfuse▲771

    Open source tracing and analytics for LLM applications

    2023 · langfuse.com · 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

    Open-source LLM Observability for Developers

    2024 · helicone.ai · its alternatives →

  9. 9
    Snowglobe▲456

    Simulate real users to test your AI before launch

    2025 · guardrailsai.com · its alternatives →

  10. 10

    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 →

  11. 11
    traceAI▲273

    Open-source LLM tracing that speaks GenAI, not HTTP.

    Apr 2026 · github.com · its alternatives →

  12. 12

    Aggregate uptime monitoring across OpenAI, Claude, and more

    Apr 2026 · tools.lamatic.ai · its alternatives →

  13. 13
    RunLLM▲293

    AI that doesn’t just respond—it resolves

    2025 · herald.dev · its alternatives →

  14. 14
    LLMonitor▲128

    Open source monitoring and production toolkit for AI apps

    2023 · its alternatives →

  15. 15
    Openlayer▲197

    Slack or email alerts for when your AI fails

    2023 · openlayer.com · its alternatives →

  16. 16

    Find your best LLM for a local inference

    2023 · its alternatives →

  17. 17

    Hi HN! We’re the team behind Fiddler, and we recently built an Agent Cache feature. It works by capturing an LLM request&#x2F;response pair and, once caching is enabled, serving subsequent matching calls locally so duplicate requests never hit the provider. It’s meant to reduce three pains that show up together in agent development: token cost, feedback-loop latency, and output non-determinism. We’d love to hear your thoughts.

    Aug 2026 · telerik.com · its alternatives →

  18. 18

    If you've built any web-based app in the last 15 years, you probably used something like Datadog, New Relic, Sentry, etc. to monitor and trace your app, right? Why should it be different when the app you're building happens to be using LLMs? So today we're open-sourcing OpenLLMetry-JS. It's an open protocol and SDK, based on OpenTelemetry, that provides traces and metrics for LLM JS&#x2F;TS applications and can be connected to any of the 15+ tools that already support OpenTelemetry. Here's the repo: https:&#x2F;&#x2F;github.com&#x2F;traceloop&#x2F;openllmetry-js A few months ago we launched…

    2024 · github.com · its alternatives →

  19. 19
    Openlit▲152

    One click observability & evals for LLMs & GPUs

    2024 · openlit.io · its alternatives →

  20. 20

    An open source Next app template to monitor your AI apps

    2025 · github.com · its alternatives →

  21. 21

    A simple calculator that estimates how many concurrent requests your GPU can handle for a given LLM, with shareable results.

    2025 · selfhostllm.org · its alternatives →

  22. 22

    Test-driven development for LLMs

    2023 · benchllm.com · its alternatives →

  23. 23

    LLM benchmarking tool for task-specific metrics on your data

    2023 · github.com · its alternatives →

  24. 24

    Hi all! This morning, we released a new Apache 2.0 licensed model on HuggingFace for detecting hallucinations in retrieval augmented generation (RAG) systems. What we've found is that even when given a "simple" instruction like "summarize the following news article," every LLM that's available hallucinates to some extent, making up details that never existed in the source article -- and some of them quite a bit. As a RAG provider and proponents of ethical AI, we want to see LLMs get better at this. We've published an open source model, a blog more thoroughly describing our methodology (and…

    2023 · vectara.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 →