Langfuse
8.2#1 in prompting toolFrom $29 a monthFree planWebAPILinuxSelf-hosted
VisitLangfuse vs Traceloop
What both publish
| Fact | Langfuse | Traceloop |
|---|---|---|
| Acquisition news | ClickHouse announced on January 16, 2026 that it had acquired Langfuse alongside a $400 million Series D financing. | ServiceNow said on May 5, 2026 that its recently completed Traceloop acquisition added runtime observability of AI-agent behavior to AI Control Tower. |
| Evaluations | Evaluation supports LLM-as-a-Judge, heuristic or code evaluators, human review, annotation queues, and scoring of production data or experiments. | Traceloop describes built-in quality checks for faithfulness, relevance, and safety, and says users can train custom evaluators on their data. |
| Funding | Crunchbase lists one seed funding round with five investors, including Y Combinator, La Famiglia, and Lightspeed Venture Partners, but hides the total amount. | The company’s About page names Y Combinator, Ibex Investors, Sorenson Capital, Samsung Next, Grand Ventures and other backers. |
| Integrations | Langfuse lists more than 100 integrations spanning OpenTelemetry, Python and TypeScript, model providers, agent frameworks, gateways, and developer tools. | OpenLLMetry supports providers including OpenAI, Anthropic, Bedrock, Gemini, Cohere, Mistral, Ollama and Vertex AI. |
| Product | Langfuse is an open-source AI engineering platform that helps teams collaboratively debug, analyze, and iterate on AI agent applications. | Traceloop describes its platform as a monitoring, debugging, and evaluation solution for LLM applications. |
| Prompt management | Prompt Management provides versioning, one-click deployments, rollbacks, prompt labels, and per-version performance metrics. | The platform includes prompt management and a prompt registry for storing and fetching prompt configurations. |
| Rating on G2 | 4.5 out of 5 from 1 review | 5 out of 5 from 2 reviews. |
| Rating on GetApp | 0 out of 5 from 0 reviews | 0 out of 5 from 0 reviews; the listing says no user reviews are available. |
| 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 homepage states that Traceloop is SOC 2 and HIPAA compliant. |
| Security compliance | Langfuse reports annual SOC 2 Type 2 and ISO 27001 audits, external penetration tests, GDPR compliance, a DPA, and a HIPAA-ready region. | The maker states that Traceloop is SOC 2 and HIPAA compliant and supports cloud, on-premises and air-gapped deployment. |
| 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. | Full-platform self-hosting uses Kubernetes with ClickHouse, Kafka, PostgreSQL and S3-compatible storage, including air-gapped deployments. |
Langfuse plans
- HobbyFree
- Core$29 a month
- Pro$199 a month
- Teams Add-on$300 a month
- Enterprise$2,499 a month
Traceloop plans
- Free ForeverFree
- EnterprisePriced on request
Pick Langfuse if…
Langfuse suits teams building AI agent applications that need tracing, prompt management, and evaluation tools. It also supports teams that want to self-host the core on their own infrastructure.
Pick Traceloop if…
It suits teams developing and operating LLM applications that need tracing, quality evaluation, and release checks. Self-hosted and restricted deployment options support controlled environments.