Compare
Langfuse vs XCP
Observability for LLM apps, not a development toolchain for Xbox.
.png?width=96)
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️
XCPLet AI coding agents work directly on Xbox Series X.Which to pick
Pick Langfuse if you want…
- LLM observability & analytics
- Integrations with TypeScript, Go or Java (on Langfuse's list, not XCP's)
Pick XCP if you want…
- AI-driven Xbox development lifecycle
- A free, open-source tool
- Integrations with Windows or GitHub (on XCP's list, not Langfuse's)
Side by side
- What it is
- Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
- XCP:XCP enables AI coding agents to build, run, and verify software directly on an Xbox Series X in Developer Mode.
- Best for
- Langfuse:LLM observability & analytics
- XCP:AI-driven Xbox development lifecycle
- Who it’s for
- Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
- XCP:Developers building or testing Xbox Series X software with AI assistance.
- Pricing
- Langfuse:Freemium
- XCP:Open source
- Plans
- Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
- XCP:—
- Open source
- Langfuse:Yes, 35,097 GitHub stars
- XCP:Yes, 3 GitHub stars
- Works with
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
- XCP:Python, Windows, GitHub
Langfuse features
- Hierarchical Traces. Capture every LLM call, tool invocation and retrieval step with filters for user, session, cost and latency.
- Prompt Management. Version, fetch, release and cache prompts separately from code with one-click deployments.
- Evaluation Engine. Run LLM-as-judge, heuristic or human-review evaluations on production data or experiments.
- Experiments & Datasets. Define test cases, run experiments and create golden datasets for continuous improvement.
- Dashboards & Alerts. Monitor cost, latency and quality via custom dashboards and automated alerts.
- Human Annotation. Collaborative human-in-the-loop workflows with annotation queues.
- Extensive Integrations. Supports Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift and 100+ agent frameworks and model providers.
- Self-hosted & Cloud Options. Available as hosted SaaS or self-hosted under MIT license.
XCP features
- Portable core. Run XVM vectors, contracts and tests on any development machine without an Xbox.
- Windows rebuild. Rebuild the full XCP toolchain on Windows and compare against verification manifests.
- Xbox execution. Deploy and run verified bundles on a real Xbox Series X in Developer Mode.
- Structured evidence. Collect deterministic logs and correction ledgers as machine-readable evidence.
- Project authority. Single authoritative project with guided, expert, and agent interfaces.
- Versioning & rollback. Deterministic builds support exact updates and rollbacks across versions.
Langfuse vs XCP FAQ
Is Langfuse or XCP free?+
Langfuse has a free plan (Hobby); paid plans start at $29/month (Core). XCP is free and open source.
Which is cheaper, Langfuse or XCP?+
XCP is free, so it costs less. Langfuse starts at $29/month (Core).
Is Langfuse or XCP open source?+
Yes, both are open source: Langfuse (langfuse/langfuse on GitHub) and XCP (Daniele-Cangi/xcp-xbox on GitHub, Apache-2.0 license).
Do Langfuse and XCP integrate with the same tools?+
Partly. Both list Python. Langfuse also lists TypeScript, Go, Java, .NET and 9 more; XCP also lists Windows and GitHub.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.