LangfuseOpen Source Agent Evals & Observability
vs
OpenObserveHigh-performance, unified observability for the AI era
Comparison · Observability · weekly run Nov 3
Langfuse vs OpenObserve
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
OpenObserve is the stronger AI pick in Observability: it has a visibility score of 3.6 versus 1.4 for Langfuse, and ranks ahead in 100% of the answers that name both.
Choose Langfuse if…
- AI answers describe it more positively (50% vs 25% positive)
- You need SOC 2 Type II or ISO 27001 or HIPAA-ready region or GDPR coverage
- Discounted cloud pricing for qualifying early-stage startups
- Well suited to evaluating and debugging LLM or agent behavior
Choose OpenObserve if…
- You want the brand AI engines rank higher (3.6 vs 1.4)
- You want a lower entry price ($0.5 vs $29)
- You need more native integrations (150+ vs 100+)
- transparent pay-as-you-go pricing
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Langfuse | OpenObserve |
|---|---|---|
| Visibility score | 1.4% | 3.6% |
| Change vs last week | New | New |
| Rank in Observability | #27 | #16 |
| Share of voice | 0.4% | 1.4% |
| Mentions this run | 2 | 8 |
| Positive in AI answers | 50% | 25% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Langfuse 0pp · OpenObserve 0pp over 0 weekly runs.
Engine by engine
OpenObserve leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
LangfuseOpenObserve
Head to head in AI answers
1 engine answers name both brands
0Langfuse ranked higher
1OpenObserve ranked higher
| Prompt | Engine | Langfuse | OpenObserve |
|---|---|---|---|
| Which observability tools offer annual discounts? | Perplexity | #10 | #6 |
Features, pricing & fit
| Dimension | Langfuse | OpenObserve |
|---|---|---|
| Pricing model | Usage-based | Usage-based |
| Entry price | Free; paid from $29 / mo | Free; paid from $0.5 / mo |
| Free plan | Yes | Yes |
| Deployment | Langfuse Cloud in US, EU, Japan and HIPAA regions, or self-hosted under the MIT license | Open-source self-hosted, OpenObserve Cloud, or Bring Your Own Cloud |
| Integrations | 100+ | 150+ |
| Compliance | SOC 2 Type II, ISO 27001, HIPAA-ready region, GDPR | — |
| 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 | Premium support on the Enterprise plan, Architecture reviews on the Enterprise plan, SLAs on the Enterprise plan |
| Founded | — | 2022 |
| Headquarters | — | San Francisco, CA |
| Employees | — | 11–50 |
| Funding | Seed · $4M raised | Seed |
| Best for | Engineering teams building LLM applications and AI agents that want open-source, self-hostable tracing and evaluation | Teams that want to keep all their logs, metrics and traces without Elasticsearch-level storage bills or Datadog-style per-host fees. |
Plans side by side
OpenObserve
Cloud Professional$0.5GB ingested, plus $0.01/GB queried, billed monthly
Cloud EnterpriseCustomcontact sales
Self-Hosted Enterprise$0free up to 50 GB ingestion per day; contact sales above that
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
OpenObserve
- transparent pay-as-you-go pricing
- annual plan discount on ingestion
- free tier with generous daily ingestion
- free trial without credit card
- named among the strongest shortlist options
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Langfuse vs OpenObserve”, https://slateindex.ai/compare/langfuse-vs-openobserve, data of Nov 3, 2026. Licence: CC BY 4.0.