Langfuse vs Prompteams

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.

Prompteams is a web and API prompt-management system for developing, versioning, and testing AI prompts. Prompts are organized into repositories, branches, and commits, with history that lets teams return to another version. Its testing suite supports test cases, success criteria, variables, and parallel runs across scenarios. A release feature can merge or synchronize commits between branches. Each branch exposes an API endpoint for retrieving updated prompts; requests require a branch_id query parameter and an api-key header. The API reference documents errors for a missing key, insufficient prompt access, or an unavailable key or prompt. Prompteams says industry specialists and engineers can iterate together without programming knowledge. The Starter plan costs nothing, billed Organization / month, with unlimited test cases per prompt, team members, repositories, and criteria, plus a real-time API and prompt versioning. Enterprise lists a Dockerised solution, custom server, unlimited support, and features on request. Knowledge Base and Live Chat are marked coming soon.