Langfuse vs PromptFluent
Langfuse
langfuse.comPromptFluent
promptfluent.comSide by side
| Figure | Langfuse | PromptFluent |
|---|---|---|
| Price from | $29/mo | $14/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 10 | 12 |
| Spec score · Prompt Management Software | 9.2 (#3) | 9.1 (#4) |
| Product | Langfuse is an open-source AI engineering platform that helps teams collaboratively debug, analyze, and iterate on AI agent applications. | PromptFluent describes itself as an enterprise AI execution management and governance platform for prompts, workflows, standards, approvals, and execution intelligence. |
| Rating on G2 | 4.5 out of 5 from 1 review | 0.0 out of 5 from 0 reviews; G2 says there are not enough reviews to provide buying insight. |
| Security | Langfuse reports annual SOC 2 Type II and ISO 27001 audits, external penetration tests, encryption, access controls, GDPR compliance, and a HIPAA-ready region. | The security page says customer data is encrypted with AES-256 at rest and TLS 1.2 or higher in transit, and organization data is isolated with row-level security. |
| Self-hosting | The OSS edition can be deployed with Docker Compose, Kubernetes Helm, or Terraform guides for AWS, GCP, and Azure, including offline or air-gapped installations. | The cited product and security pages describe a hosted service and do not state that self-hosting is available. |
| Support | Hobby includes community support via GitHub, Core includes in-app support, Pro includes prioritized in-app support, and Enterprise includes support SLA and a named lead support engineer. | The contact page says general inquiries receive a response within 24 hours, and the Learn section provides guides and tutorials. |
| What it does | Langfuse is an open-source AI engineering platform for tracing, prompt management, evaluations, metrics, and iterative improvement of LLM applications and agents. | PromptFluent describes itself as an AI execution management and governance platform for prompts, workflows, approvals, standards and execution intelligence. |
Plans
Langfuse
- HobbyFree
- HobbyFree
- Core$29 a month
- Core$29 a month
- Pro$199 a month
- Pro$199 a month
- Teams Add-on$300 a month
- Teams Add-on$300 a month
- Enterprise$2,499 a month
- Enterprise$2,499 a month
PromptFluent
- FreeFree
- Magic on Demand – 10 scans$12, paid once
- Magic on Demand — 10 scans$12, paid once
- Wand Boost$14 a month
- Magic on Demand – 25 scans$25, paid once
- Magic on Demand — 25 scans$25, paid once
- Pro$25 a month
- Wand Pro Pack$29 a month
- Magic on Demand – 50 scans$40, paid once
- Magic on Demand — 50 scans$40, paid once
In their own words
Langfuse
Langfuse is an open-source AI engineering platform for teams debugging, analyzing, and iterating on AI agent applications. Its tracing records prompts, model responses, token use, latency, tool calls, retrieval steps, and metadata. Prompt Management stores, versions, deploys, and tests prompts, then links them to traces. Evaluation features include LLM-as-a-judge, code evaluators, user feedback, manual labeling, datasets, and experiments. Integrations include Python and JS/TS SDKs, OpenTelemetry, an API, CLI, MCP Server, and popular AI frameworks. Teams can self-host the MIT-licensed core on customer infrastructure using Docker, with options including Docker Compose, Kubernetes, AWS, and Azure. Langfuse reports annual SOC 2 Type 2 and ISO 27001 audits, external penetration tests, GDPR compliance, a DPA, and a HIPAA-ready region. Its Cloud traffic uses TLS 1.2+ and stored data uses AES-256 encryption. The free Hobby plan is free and includes 50k units per month, 30 days of data access, two users, and community support via GitHub. Core costs $29 a month, billed monthly.
PromptFluent
PromptFluent is an AI prompt and workflow management platform focused on enterprise governance and execution intelligence. Its library advertises more than 20,000 practitioner-built prompts across 13 business functions and more than 30 industries. Prompt Studio creates structured prompts, adapts library prompts, builds multi-step chains and saves work to versioned personal or team libraries. Team capabilities include shared libraries, approvals, version control and role-based access; analytics surface patterns, trends, anomalies and recommendations across shared AI work. A Chrome or Edge extension searches and inserts prompts inside ChatGPT, Claude, Gemini, Copilot and Perplexity, and supports Windows, macOS, Linux and ChromeOS. PromptFluent says customer data is encrypted at rest and in transit, organization data is isolated with row-level security, and private business material is not used to train public AI models. Free access is available; Pro costs $25 a month when billed annually. Team costs $50 a month when billed annually per user. Enterprise pricing is custom through a limited Founding Customer Program.