
PromptLayer
Langfuse
Helicone AI
PromptHub
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WhichModel
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Opsmeter
Helicone AI
Langfuse
Humanloop
LangSmith
Opsmeter is an AI cost observability platform that shows exactly what caused your AI bill. Track spend by endpoint, user, model, and prompt version, monitor token and latency trends, and keep telemetry flowing with provider-agnostic ingest, rate-limit headers, and retry-safe guidance.
PromptLayer
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Opsmeter's answer:
Opsmeter combines endpoint, user, model, and prompt-version cost attribution in one view, so teams can quickly see what changed and why AI spend increased. It is provider-agnostic and built to keep telemetry reliable without breaking production flows.
Opsmeter's answer:
Choose Opsmeter for faster root-cause analysis, simple provider-agnostic ingest, and practical budget/rate-limit handling. It helps teams act on cost spikes quickly instead of only showing high-level usage charts.
Opsmeter's answer:
Opsmeter is built for teams running AI in production: CTOs/engineering leads, platform and ops teams, and founders who need clear cost visibility and governance.
Opsmeter's answer:
Opsmeter started from a common problem: teams could see the AI bill, but not what exactly caused it. We built Opsmeter to answer that question clearly and quickly with request-level attribution.
Opsmeter's answer:
Opsmeter is built with Angular (TypeScript) on the frontend, ASP.NET Core (.NET/C#) on the backend, PostgreSQL for data, and Docker/Nginx for deployment and operations.
Opsmeter's answer:
We currently work with startup and growth-stage AI teams. Customer names are not publicly disclosed yet.
Opsmeter might be a bit more popular than PromptLayer. We know about 1 link to it since March 2021 and only 1 link to PromptLayer. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Looks nice, and it's nice that it also supports function call simulation. I've been collecting a list of tools for prompt engineering, I've added Knit now. Newly added: https://promptknit.com/ Newly added: https://github.com/promptfoo/promptfoo https://promptable.ai/ https://github.com/ianarawjo/ChainForge https://promptknit.com/ https://promptrefine.com/ https://www.vellum.ai/ https://www.everyprompt.com/... - Source: Hacker News / almost 3 years ago
- Would you want this as observability, governance, or both? Website: https://opsmeter.io. - Source: Hacker News / 4 months ago
Langfuse - Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.
Helicone AI - Open-source LLM Observability for Developers
PromptHub - Test, deploy, and manage your prompts with PromptHub, a prompt management tool designed to be usable by your whole team, not just engineers.
Humanloop - Train state-of-the-art language AI in the browser
Promptaa - Prompt organization and AI enhancement. Engineer prompts with 1 click.
LangSmith - Build and deploy LLM applications with confidence