1
Also covers ai agents, ai infrastructure, and llm · open source
OpenLIT provides observability and evaluation for AI agents and coding agents, tracing models, tools, prompts, costs, and workflows.
Alternatives
The Best Langfuse Alternatives in 2026
24 alternatives3 free · 11 open source
Looking for something like Langfuse? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 3 are free or have a free plan and 11 are open source.
Langfuse provides open-source evaluation and observability tools for tracing and improving AI agents.
Top picks at a glance
First suggestionOpenLITOpenLIT provides observability and evaluation for AI agents…Free or freemium optionMaxim AIBifrost by Maxim AI is an open-source AI gateway for LLMs…Another optionLunaryObservability and prompt management platform for LLM-based…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | OpenLIT | — | Yes | — |
| 2 | Lunary | — | Not stated | Web |
| 3 | Deepchecks | — | Not stated | Web |
| 4 | Comet | — | Not stated | Web |
| 5 | TensorZero | — | Not stated | Web |
| 6 | PromptLayer | — | Not stated | Web |
| 7 | Confident AI | — | Not stated | Web |
| 8 | MLflow | — | Yes | Web |
| 9 | Future AGI | — | Yes | — |
| 10 | Maxim AI | Freemium | Yes | Windows, macOS, Linux |
All Langfuse alternatives
2
Lunary
lunary.aiAlso covers ai agents, ai infrastructure, and llm · same kind of website
Observability and prompt management platform for LLM-based apps. Take your LLMs to the next level.
3
Deepchecks
deepchecks.comAlso covers ai infrastructure and llm · same kind of website
Deepchecks evaluates and monitors AI agents using testing, tracing, dataset scoring, and production observability tools.
4
Comet
comet.comAlso covers ai infrastructure and llm
Comet's Opik platform provides AI observability, agent testing, evaluation, and monitoring for developers.
5
TensorZero
tensorzero.comAlso covers ai infrastructure and llm · same kind of website
TensorZero builds open-source tools for production-grade LLM applications: LLM gateway, observability, optimization, evaluations, and experimentation.
6
PromptLayer
promptlayer.comAlso covers ai infrastructure and llm
PromptLayer supports prompt versioning, LLM evaluations, and production monitoring with traces, logs, and regression sets.
7
Confident AI
confident-ai.comAlso covers ai infrastructure and llm
Confident AI provides evaluation, observability, red-teaming, and governance tools for testing and monitoring AI systems.
8
Also covers ai infrastructure and llm · open source
MLflow helps teams build AI products by debugging, evaluating, monitoring, and improving AI applications.
9
Also covers ai agents and ai infrastructure · open source
This SDK provides AI evaluations, prompt management, and observability for Python and TypeScript workflows.
10
Also covers ai infrastructure and llm · open source · free plan
Bifrost by Maxim AI is an open-source AI gateway for LLMs, MCP and agents with routing, governance, guardrails and observability, supporting 8+ providers and 1000+ models via a drop-in SDK replacement.
11
Also covers ai agents and ai infrastructure · open source · free plan
Latitude traces AI agent behavior in production, finds failures, provides alerts, and can dispatch coding agents to propose fixes.
12
Also covers ai agents and ai infrastructure · open source
Kitaru provides agent traces that teams can run and inspect during application workflows.
13
Also covers ai agents and ai infrastructure · open source
Future AGI evaluates and observes AI and agent applications with tracing, simulations, datasets, and guardrails.
14
Also covers ai agents and ai infrastructure · open source · free plan
Ship AI agents that reason, remember, and act in TypeScript. Mastra provides memory, tools, MCP, and observability to go from prototype to production.
15
Also covers ai infrastructure and llm · open source
DeepEval is an LLM evaluation framework.
16
Keywords AI
respan.aiAlso covers ai infrastructure and llm
Respan unifies LLM observability, evals, prompt optimization, and an AI gateway so teams can ship reliable AI applications.
17
Also covers ai agents and ai infrastructure · open source
Laminar provides open-source observability tools designed for applications built with AI agents.
18
AI SDK
ai-sdk.devAlso covers ai infrastructure and llm
Vercel’s AI SDK is a TypeScript toolkit for building AI applications and agents with React, Next.js, Vue, Svelte, and Node.js.
19
Kuberns
kuberns.comAlso covers ai agents and ai infrastructure · same kind of website
Kuberns uses AI agents to deploy, scale, and manage applications on cloud infrastructure.
20
Tasklet
tasklet.aiAlso covers ai agents and ai infrastructure · same kind of website
Tasklet connects business tools and delegates operational work to AI agents through an agent-based business platform.
21
Superexpert.AI
superexpert.aiAlso covers ai agents and ai infrastructure · same kind of website
Developers can use Superexpert.AI to build and deploy multi-task AI agents on an open-source platform, with a downloadable project and live demo.
22
Mem0
mem0.aiAlso covers ai agents and ai infrastructure · same kind of website
Mem0 provides a persistent memory layer that helps AI agents and applications learn from past user interactions.
23
Hyperbrowser
hyperbrowser.aiAlso covers ai agents and ai infrastructure · same kind of website
Hyperbrowser provides cloud browser infrastructure for AI agents and applications.
24
Also covers ai agents and ai infrastructure · open source
traceAI provides open source tracing for AI applications and frameworks using OpenTelemetry.
No alternatives match this filter.
Alternatives to similar tools
confident-ai/deepeval24 alternativesFuture AGI24 alternativesFuture AGI24 alternativesOpenLIT24 alternativesMaxim AI24 alternativesLatitude24 alternatives
What is the best alternative to Langfuse?
Based on features, tags and platforms, the closest alternatives to Langfuse are OpenLIT, Lunary, and Deepchecks.
Is there a free alternative to Langfuse?
Yes. Maxim AI, Latitude, and Mastra are free or offer a free plan.
Are there open-source alternatives to Langfuse?
Yes: OpenLIT, MLflow, Future AGI, and Maxim AI.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative