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Langfuse vs LLM-God
Short answer: Pick Langfuse if you want LLM observability & analytics; pick LLM-God if you want multi-LLM prompting in a single UI. Langfuse has a free plan, paid from $29/month; LLM-God is free and open source.
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LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️Which to pick
Pick Langfuse if you want…
- LLM observability & analytics
- LLM app monitoring
- Integrations with Python, TypeScript or Go (on Langfuse's list, not LLM-God's)
Pick LLM-God if you want…
- Multi-LLM prompting in a single UI
- A free, open-source tool
- Integrations with ChatGPT, Google Gemini or Anthropic Claude (on LLM-God'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.
- LLM-God:LLM-God is a desktop app that lets you prompt multiple LLM web interfaces simultaneously from one window.
- Best for
- Langfuse:LLM observability & analytics
- LLM-God:Multi-LLM prompting in a single UI
- Who it’s for
- Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
- LLM-God:Developers and power users who work with several LLM services daily
- Pricing
- Langfuse:Freemium
- LLM-God:Open source
- Starting price
- Langfuse:$29/month (Core)
- LLM-God:Free
- Free plan or trial
- Langfuse:Free plan (Hobby)
- LLM-God:Free to use
- Plans
- Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
- LLM-God:—
- Open source
- Langfuse:Yes, 35,097 GitHub stars
- LLM-God:Yes, 281 GitHub stars
- Works with
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
- LLM-God:ChatGPT, Google Gemini, Anthropic Claude, X.ai Grok, DeepSeek
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.
LLM-God features
- Simultaneous prompting. Enter a prompt once and inject it into all configured LLM web interfaces.
- Multiple model support. Supports ChatGPT, Gemini, Claude, Grok, Copilot, DeepSeek and lets you add custom models.
- Prompt templates. Save frequently used prompts as templates for quick reuse.
- Custom prompt editor. Create, edit, and store your own prompts directly in the app.
- Image paste support. Paste screenshots into the prompt area for all models.
- Keyboard shortcuts. Launch prompts with Ctrl+Enter and close the app with Ctrl+W.
Langfuse vs LLM-God FAQ
What is the difference between Langfuse and LLM-God?+
Langfuse provides observability for LLM apps, not a multi-prompt UI.
Should I use Langfuse or LLM-God?+
Pick Langfuse if you want LLM observability & analytics, LLM app monitoring or integrations with Python, TypeScript or Go (on Langfuse's list, not LLM-God's). Pick LLM-God if you want multi-LLM prompting in a single UI, a free, open-source tool or integrations with ChatGPT, Google Gemini or Anthropic Claude (on LLM-God's list, not Langfuse's).
Is Langfuse or LLM-God free?+
Langfuse has a free plan (Hobby); paid plans start at $29/month (Core). LLM-God is free and open source.
Which is cheaper, Langfuse or LLM-God?+
LLM-God is free, so it costs less. Langfuse starts at $29/month (Core).
Is Langfuse or LLM-God open source?+
Yes, both are open source: Langfuse (langfuse/langfuse on GitHub) and LLM-God (czhou578/llm-god on GitHub, MIT license).
Do Langfuse and LLM-God integrate with the same tools?+
Their integration lists don't overlap: Langfuse lists Python, TypeScript, Go, Java and 10 more; LLM-God lists ChatGPT, Google Gemini, Anthropic Claude, X.ai Grok and 1 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.