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Alternatives

Products that do what LLM Observatory does

Real-time observability for Claude & OpenAI APIs

  1. 1

    Trace LLM requests + costs with OpenTelemetry monitoring

    Oct 2025

  2. 2
    AskCodi230

    Custom LLMs, without training. Use via openai compatible api

    Nov 2025 · askcodi.com

  3. 3

    Open-source LLM Observability for Developers

    2024 · helicone.ai

  4. 4
    LLMonitor128

    Open source monitoring and production toolkit for AI apps

    2023

  5. 5OO

    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://github.com/traceloop/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

  6. 6

    Aggregate uptime monitoring across OpenAI, Claude, and more

    Apr 2026 · tools.lamatic.ai

  7. 7

    Improve your LLM apps with open-source observability tool

    2024

  8. 8
    Langfuse771

    Open source tracing and analytics for LLM applications

    2023 · langfuse.com

  9. 9
    Openlit152

    One click observability & evals for LLMs & GPUs

    2024

  10. 10

    AI-powered cloud observability

    2023 · middleware.io

  11. 11
    LangWatch669

    Understand, measure and improve your LLMs

    2024 · langwatch.ai

  12. 12

    Open-source evaluations and observability for LLM apps

    2024

  13. 13AT

    I recently built a small open-source tool to benchmark different LLM API endpoints — including OpenAI, Claude, and self-hosted models (like llama.cpp). It runs a configurable number of test requests and reports two key metrics: • First-token latency (ms): How long it takes for the first token to appear • Output speed (tokens/sec): Overall output fluency Demo: https://llmapitest.com/ Code: https://github.com/qjr87/llm-api-test The goal is to provide a simple, visual, and reproducible way to evaluate performance across different LLM providers, including…

    2025 · llmapitest.com

  14. 14
    LLM Stats308

    Compare API models by benchmarks, cost & capabilities

    Oct 2025

  15. 15
    traceAI273

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

    Apr 2026 · github.com

  16. 16YD

    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/TS applications and can be connected to any of the 15+ tools that already support OpenTelemetry. Here's the repo: https://github.com/traceloop/openllmetry-js A few months ago we launched…

    2024 · github.com

  17. 17

    Vibe-check many open-source and proprietary LLMs at once

    2024

  18. 18

    Use any AI model with just one API

    2025

  19. 19

    LLM-usage observability and monitoring tool

    2025

  20. 20OS

    Hi HN, Hugh and Vince here. LLMonitor helps you record, trace & search your LLM queries and chatbot conversations. You can also capture user feedback on your frontend and correlate it with backend LLM queries then use that to fine-tune your own models. The project started has an internal tool in our previous (failed) AI startup. We’re aware the LLM observability space is very crowded. Apart from being open-source, we differentiate with: - Model-agnostic and minimal lock-in (no MITM of requests). - High focus on DX and dashboard clarity. - Support for complex scenarios: e.g. a chatbot that…

    2023 · github.com

  21. 21
    Openlayer197

    Slack or email alerts for when your AI fails

    2023

  22. 22
    Taylor AI118

    Fine-tune open source LLMs in minutes

    2023

  23. 23

    Find your best LLM for a local inference

    2023

  24. 24
    TraceLLM100

    OpenTelemetry for production AI applications

    Jul 2026 · tracellm.in

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