# Langfuse: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 21 judge labels across 4 categories by 13 of 14 models. Page: https://www.gane.ai/index/it/vendors/langfuse

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [LLM gateways and observability](https://www.gane.ai/index/it/it-data/llm-gateways-and-observability/index.md) | 2% | 7 | 0% | 16 |
| [AI governance platforms](https://www.gane.ai/index/it/it-data/ai-governance-platforms/index.md) | 2% | 16 | 0% | 3 |
| [AI security platforms](https://www.gane.ai/index/it/security/ai-security-platforms/index.md) | 0% | 97 | 0% | 1 |
| [Observability platforms](https://www.gane.ai/index/it/operations/observability-platforms/index.md) | 0% | 32 | 0% | 1 |

## What the models said for it

- "Go with MLflow + Evidently AI + Langfuse" (Gemini 3.5 Flash, AI governance)
- "Top Recommendation: Langfuse + Bifrost" (GLM 4.7 FlashX, LLM gateways)
- "Langfuse (top if you prioritize open-source/self-hosting): Excellent framework-agnostic tracing" (Grok 4.20, LLM gateways)
- "consider alternatives to these platforms, such as SigNoz, Langfuse, and ClickHouse-based solutions" (Llama 4 Maverick, Observability)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 1 | 0 | 0 | 1 |
| Gemini 3.5 Flash | 1 | 2 | 1 | 0 | 4 |
| Perplexity Sonar | 0 | 1 | 0 | 0 | 1 |
| Grok 4.20 | 0 | 1 | 3 | 0 | 4 |
| Mistral Small | 0 | 0 | 1 | 0 | 1 |
| DeepSeek V4 Flash | 0 | 1 | 0 | 0 | 1 |
| Llama 4 Maverick | 0 | 1 | 1 | 0 | 2 |
| Qwen 3.7 Flash | 0 | 1 | 0 | 0 | 1 |
| Kimi K2 | 0 | 0 | 1 | 0 | 1 |
| GLM 4.7 FlashX | 1 | 0 | 0 | 0 | 1 |
| MiniMax M2.5 | 0 | 2 | 0 | 0 | 2 |
| GPT-6 Luna | 0 | 1 | 0 | 0 | 1 |
| Muse Glimmer 30B | 0 | 1 | 0 | 0 | 1 |

## Sources returned with these answers

The sites and pages cited by the answers that named Langfuse, from 48 of the 54 answers that named it (only the models that return a source list).

### Domains cited

- getmaxim.ai: 22
- github.com: 18
- confident-ai.com: 15
- braintrust.dev: 13
- dev.to: 12
- orq.ai: 12
- respan.ai: 11
- langchain.com: 10
- langfuse.com: 9 (its own site)
- fastrouter.ai: 8

### Pages cited

- https://orq.ai/blog/best-llm-observability-tools: 12
- https://getmaxim.ai/articles/top-5-llm-observability-tools-for-enterprises-in-2026.md: 11
- https://braintrust.dev/articles/best-llm-gateways-observability-2026: 9
- https://getmaxim.ai/articles/top-5-llm-observability-platforms-for-enterprises-in-2026: 9
- https://langchain.com/resources/llm-observability-tools: 8
- https://roadmap.sh/ai-engineer/observability-tools: 8
- https://confident-ai.com/knowledge-base/compare/10-llm-observability-tools-to-evaluate-and-monitor-ai-2026: 6
- https://confident-ai.com/knowledge-base/compare/best-enterprise-llm-observability-tools: 6

## In its own words

What Langfuse's own pages state, read 2026-09-28. Stated by the vendor, not checked by the index.

- Positioning: Open Source Agent Evals & Observability (https://langfuse.com/)
- For: Developers who value open-source and control over their data build production grade agents and LLM applications with Langfuse. (https://langfuse.com/)
- Price stated: Get Started — Free tier: 50k observations/month. No credit card required. (https://langfuse.com/)
- Starting price: 0 (https://langfuse.com/pricing)
- Free plan or trial: Free tier: 50k observations/month. No credit card required. (https://langfuse.com/)
- Integrations claimed: 100 (https://langfuse.com/)
- Certifications: SOC 2 Type II, ISO 27001, HIPAA
- Hosting: EU, US, HIPAA-ready region, US, EU, or JP, US, EU, JP, or HIPAA, US & HIPAA region: us-west-2 (Oregon), EU region: eu-west-1 (Ireland), JP region: ap-northeast-1 (Japan)
- Customers named: Ramp, Canva, Khan Academy, Hugging Face, SumUp, Merck, Trade Republic, Intuit

## What it publishes

Every page langfuse.com exposes, read 2026-09-29: 855 addresses. By kind, pages and the last 90 days:

- blog: 117 pages, 0 in the last 90 days, latest 2026-05-31
- webinar or virtual event: 1 pages, 0 in the last 90 days, latest undated
- conference or event: 19 pages, 0 in the last 90 days, latest undated
- report or ebook: 31 pages, 0 in the last 90 days, latest undated
- comparison: 7 pages, 0 in the last 90 days, latest undated
- glossary or explainer: 31 pages, 0 in the last 90 days, latest undated
- Recent: 2026-05-31 blog: 2026 06 09 ai is eating ai engineering https://langfuse.com/blog/2026-06-09-ai-is-eating-ai-engineering
- Recent: 2026-03-12 blog: 2026 03 24 optimizing ai skill with autoresearch https://langfuse.com/blog/2026-03-24-optimizing-ai-skill-with-autoresearch

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/it.