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Langfuse

Rising

AI Observability

Listed 2mo old · langfuse.com

Open-source LLM observability platform. Traces, evals, prompt management, and metrics in one tool. Self-hostable alternative to LangSmith with a generous free cloud tier.

Best For

Teams & solo builders

Key Pros & Cons

Strengths

10.4% fork-to-star ratio — strong developer contribution signal

Watch Out For

Low community score (3/100) — smaller support network

Market Momentum

24h

+27

+23

30d

14-day heat score history

Creator Buzz8

Search Interest90

Community Activity3

Abandonment & Maintenance Risk

Low Risk

Trend phaseRising

30-day score change+23 pts

Listed on HookFlow2mo old

Discontinued flag✓ No

Commit cadenceVery Active

Last commitToday

Risk Factors

No major abandonment signals detected
Active growth — strong maintenance signal
Negative score trajectory (-1.00 pts/day)
GitHub repo actively maintained — last commit Today

GitHub Repository Health

Very Active

Stars

29,423

Forks

3,059

Open Issues

656

Watchers

Last commitToday

7-day star growth+406 stars

Fork / Star ratio10.4%

Snapshot dateJun 20, 2026

github.com/langfuse/langfuse

Data Lock-In Index

100

/ 100 (lower = more open)

○ Webhooks Out○ Bulk Export○ Open Formats

vs. Category Peers (AI Observability)

Tool

A.R.C.

Heat

7d Δ

Lock-In

Langfuse (this)

Open-source LLM observability

—

+27

100

Promptfoo▲ Rising

Prompt testing & evals

—

+25

100

LangSmith▲ Rising

LLM call tracing & evals

—

+25

100

Helicone

Snapshot Disclaimer: All scores, rankings, and metrics in this report reflect data as of June 20, 2026. Heat scores, community activity, and market momentum are recalculated daily — figures shown here represent a point-in-time snapshot and may differ from current values on HookFlow.ai.

HookFlow.ai Infrastructure Report — June 20, 2026hookflow.ai

Growth Momentum100

Score ForecastConfidence: low

7-day est.

14-day est.

Trend slope: -1.00 pts/day

What This Score Means

Langfuse is leading AI Observability by heat score and still rising — momentum is accelerating, not plateauing.

▲ Rising

AI app monitoring

—

100

Portkey▲ Declining

—

-25

100

Lock-In: 0 = fully open, 100 = maximum data lock-in. A.R.C. = Architecture · Reliability · Context score (A–F).