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Langfuse vs PromptForge
Offers open-source observability for LLM apps, unrelated to prompt discovery or UI extensions.
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LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️
PromptForgeSupercharge ChatGPT, Bard & ClaudeWhich to pick
Pick Langfuse if you want…
- LLM observability & analytics
- Open-source code (langfuse/langfuse on GitHub)
- Integrations with Python, TypeScript or Go (on Langfuse's list, not PromptForge's)
Pick PromptForge if you want…
- One-click prompt management inside AI web apps
- Integrations with ChatGPT, Google Gemini or Claude (on PromptForge'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.
- PromptForge:PromptForge is a browser extension that lets you discover, run, and manage AI prompts directly inside ChatGPT, Gemini, Claude, MidJourney and more.
- Best for
- Langfuse:LLM observability & analytics
- PromptForge:One-click prompt management inside AI web apps
- Who it’s for
- Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
- PromptForge:Developers and prompt engineers who use web-based AI chat and image generators.
- Pricing
- Langfuse:Freemium
- PromptForge:Freemium
- Plans
- Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
- PromptForge:—
- Open source
- Langfuse:Yes, 35,097 GitHub stars
- PromptForge:—
- Works with
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
- PromptForge:ChatGPT, Google Gemini, Claude, MidJourney
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.
PromptForge features
- Community & Private Prompts. Browse, save, and share thousands of community prompts or create private collections.
- Prompt Variables. Add dynamic variables to prompts for reusable, customizable inputs.
- Quick Continue. Insert predefined continuations into a chat with over 30 options or custom ones.
- Prompt Extenders. Inject extra data, tone, or style modifiers into any prompt with a single click.
- Advanced Search. Find prompts quickly using rich filtering across collections and tags.
- Web Scraping. Live web-scraping service to pull up-to-date information into prompts.
- Customization Settings. Adjust display, language, tone presets, and other UI options to suit your workflow.
- Sync Across Platforms. Your prompts, favorites, and collections sync automatically across supported AI platforms.
Langfuse vs PromptForge FAQ
Is Langfuse or PromptForge free?+
Langfuse has a free plan (Hobby); paid plans start at $29/month (Core). PromptForge has a free plan and paid plans.
Is Langfuse or PromptForge open source?+
Langfuse is open source (langfuse/langfuse on GitHub). DevHunt has no public source repository on record for PromptForge.
Do Langfuse and PromptForge integrate with the same tools?+
Their integration lists don't overlap: Langfuse lists Python, TypeScript, Go, Java and 10 more; PromptForge lists ChatGPT, Google Gemini, Claude and MidJourney.
On DevHunt
PromptForge
14 upvotes · Launched on DevHunt on Jan 2, 2024
Based on each tool's website and DevHunt data. Details may change; check the official sites.