LangfuseOpen Source Agent Evals & Observability
vs
TempoOpen-source, high-scale distributed tracing backend
Comparison · Observability · weekly run Nov 3
Langfuse vs Tempo
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Tempo is the stronger AI pick in Observability: it has a visibility score of 7.1 versus 1.4 for Langfuse.
Choose Langfuse if…
- AI answers describe it more positively (50% vs 6% positive)
- You need SOC 2 Type II or ISO 27001 or HIPAA-ready region coverage
- Discounted cloud pricing for qualifying early-stage startups
- Well suited to evaluating and debugging LLM or agent behavior
Choose Tempo if…
- You want the brand AI engines rank higher (7.1 vs 1.4)
- You need SOC 2 or ISO/IEC 27001 or ISO 22301 or PCI DSS v4.0.1 or FedRAMP High or TISAX or CSA STAR or TX-RAMP Level 2 coverage
- Open-source and cost-effective
- Mature Prometheus, Loki and Grafana ecosystem
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Langfuse | Tempo |
|---|---|---|
| Visibility score | 1.4% | 7.1% |
| Change vs last week | New | New |
| Rank in Observability | #27 | #12 |
| Share of voice | 0.4% | 3.1% |
| Mentions this run | 2 | 18 |
| Positive in AI answers | 50% | 6% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Langfuse 0pp · Tempo 0pp over 0 weekly runs.
Engine by engine
Tempo leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
LangfuseTempo
Head to head in AI answers
0 engine answers name both brands
0Langfuse ranked higher
0Tempo ranked higher
Features, pricing & fit
| Dimension | Langfuse | Tempo |
|---|---|---|
| Pricing model | Usage-based | — |
| Entry price | Free; paid from $29 / mo | — |
| Free plan | Yes | — |
| Deployment | Langfuse Cloud in US, EU, Japan and HIPAA regions, or self-hosted under the MIT license | Managed as Grafana Cloud or self-hosted on Kubernetes via Helm |
| Integrations | 100+ | — |
| Compliance | SOC 2 Type II, ISO 27001, HIPAA-ready region, GDPR | SOC 2, ISO/IEC 27001, ISO 22301, PCI DSS v4.0.1, GDPR, FedRAMP High, TISAX, CSA STAR, TX-RAMP Level 2 |
| Support | Community support via GitHub, In-app support, Private Slack or MS Teams channel on Pro and Enterprise plans, Named lead support engineer on Enterprise plans | — |
| Headquarters | — | New York, NY |
| Employees | — | 1,001–5,000 |
| Funding | Seed · $4M raised | Series E · $1100M raised |
| Best for | Engineering teams building LLM applications and AI agents that want open-source, self-hostable tracing and evaluation | — |
Plans side by side
Tempo
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Langfuse
- Discounted cloud pricing for qualifying early-stage startups
- Well suited to evaluating and debugging LLM or agent behavior
Tempo
- Open-source and cost-effective
- Mature Prometheus, Loki and Grafana ecosystem
- Distributed tracing for traces
- Integrates smoothly with OpenTelemetry
- Managed option with a permanent free tier
- Demands significant internal engineering time to maintain and scale
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Langfuse vs Tempo”, https://slateindex.ai/compare/langfuse-vs-tempo, data of Nov 3, 2026. Licence: CC BY 4.0.