Langfuse vs Guuey
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Langfuse compared with Guuey
| Detail | L
Langfuse | 
Guuey |
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| What it does | Open Source Agent Evals & Observability
| The AI agent hosting platform
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| Stage | Established
| MVP
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| Founded | Not given
| Not given
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| Based in | DE
| Not given
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| Pricing model | Freemium
| Free trial
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| Pricing | Not given
| Free 7-day trial per app. Paid plans are per app: Starter $49/mo (1,200 generations/month, $20/mo managed-LLM credit, XS-SM agent sizes, email support); Pro $129/mo (3,500 generations/month, $50/mo managed-LLM credit, XS-MD agent sizes, priority support); Scale $299/mo (9,000 generations/month, $100
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| Key features | - Hierarchical traces capture every LLM call, tool invocation, and retrieval step
- LLM-as-a-judge, heuristic functions, or human review evaluations
- Prompt management with one-click deployments and rollbacks
- Playground to test prompts on real production inputs and compare models
- Experiments with test cases and side-by-side comparison
- Human annotation and collaborative human-in-the-loop workflows
- Cost and latency monitoring with dashboards and alerts
- REST APIs and Query SDK for data access
- Langfuse Assistant to automate the AI engineering loop
| - One script tag integration for landing pages
- SDK for app embedding
- Generative UI for agent responses
- Pricing question answering
- Calendar link handoff for serious leads
- Visitor inquiry reporting
- Isolated pod runtime per deployed agent
- Always-on runtime without cold-starts
- Bring your own LLM key option
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| What makes it different | - MIT licensed open source platform with no data lock-in
- Enterprise scale architecture handling billions of monthly events
- Works with any language and framework with no framework lock-in
- Async by default so tracing never blocks your application
| - Metered billing with spending caps, no surprise costs
- Per-app billing rather than per-account, so you upgrade only apps that take off
- Generative UI adapts interface to each request
- No cold-starts on deployed agents, always-on runtime
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 80 ▲ +1 (up) since last check | 13 ● no change since last check |
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| Trust Flow (Majestic) | 35 | 0 |
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| Citation Flow (Majestic) | 54 | 18 |
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| Referring domains (Majestic) | 6114 | 32 |
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5 details filled in for both companies.
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