---
title: "Langfuse vs Weights & Biases: Which is more popular by branded search?"
description: "Which is more popular in search, Langfuse or Weights & Biases? Compare estimated monthly branded-search demand and Share of Search inside the LLM observability platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/global-en/compare/langfuse-vs-weights-biases"
publisher: "Brandwave"
---

# Langfuse vs Weights & Biases: Which is more popular by branded search?

Which is more popular in search, Langfuse or Weights & Biases? Compare estimated monthly branded-search demand and Share of Search inside the LLM observability platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Compared**: Langfuse and Weights & Biases
- **Competitive set**: LLM observability platforms
- **Market**: Global
- **Month measured**: Aug 2026
- **Langfuse Share of Search**: 45.3%
- **Weights & Biases Share of Search**: 20.8%

## Which is more popular in search, Langfuse or Weights & Biases?

- In August 2026, Langfuse had more branded searches than Weights & Biases among LLM observability platforms worldwide. Langfuse was estimated to have 110K branded searches compared to Weights & Biases’ 50.4K, and held a 45.3% Share of Search versus Weights & Biases’ 20.8%.
- The lead changed hands once in the 11 months ending August 2026: Langfuse took it in January 2026.
- Across the 11 months ending August 2026, Langfuse’s estimated Share of Search among LLM observability platforms worldwide moved from 31.7% to 45.3%, and its estimated monthly branded searches moved from 74K to 110K.
- Across the 11 months ending August 2026, Weights & Biases’ estimated Share of Search among LLM observability platforms worldwide moved from 33.6% to 20.8%, and its estimated monthly branded searches moved from 78.6K to 50.4K.

## How did search popularity change for LLM observability platforms worldwide in August 2026?

- In August 2026, Langfuse gained estimated Share of Search among LLM observability platforms worldwide, from 42.2% to 45.3%.
- In August 2026, Weights & Biases gained estimated Share of Search among LLM observability platforms worldwide, from 20.2% to 20.8%.

## Month by month

| Month | Langfuse estimated searches | Langfuse Share of Search | Langfuse rank | Weights & Biases estimated searches | Weights & Biases Share of Search | Weights & Biases rank |
| --- | --- | --- | --- | --- | --- | --- |
| Oct 2025 | 74K | 31.7% | 2 | 78.6K | 33.6% | 1 |
| Nov 2025 | 74K | 31.7% | 2 | 78.6K | 33.6% | 1 |
| Dec 2025 | 74K | 31.9% | 2 | 75.3K | 32.5% | 1 |
| Jan 2026 | 90.5K | 36.1% | 1 | 75.3K | 30% | 2 |
| Feb 2026 | 90.5K | 37.8% | 1 | 64.3K | 26.9% | 3 |
| Mar 2026 | 110K | 37.8% | 1 | 78.6K | 27% | 3 |
| Apr 2026 | 110K | 36.1% | 1 | 92.1K | 30.2% | 2 |
| May 2026 | 110K | 38.4% | 1 | 75.3K | 26.3% | 3 |
| Jun 2026 | 110K | 40.2% | 1 | 64.3K | 23.5% | 3 |
| Jul 2026 | 110K | 42.2% | 1 | 52.6K | 20.2% | 3 |
| Aug 2026 | 110K | 45.3% | 1 | 50.4K | 20.8% | 3 |
| Sep 2026 | — | — | — | — | — | — |

## How each brand is measured

Brandwave collects information about searches that people make online using Langfuse’s and Weights & Biases’ names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

- **Langfuse**: Measured on the search term “langfuse”.
- **Weights & Biases**: Measured on the search terms “wandb” and “weights and biases”, summed into one figure.

- [Langfuse profile](/demand/global-en/brands/langfuse)
- [Weights & Biases profile](/demand/global-en/brands/weights-biases)
- [All LLM observability platforms worldwide](/demand/global-en/categories/llm-observability-platforms): The set both shares are measured inside, 5 brands.

## Methodology

- [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which is more popular in search, Langfuse or Weights & Biases?

In August 2026, Langfuse had more branded searches than Weights & Biases among LLM observability platforms worldwide. Langfuse was estimated to have 110K branded searches compared to Weights & Biases’ 50.4K, and held a 45.3% Share of Search versus Weights & Biases’ 20.8%.

## Cite this page

Brandwave. "Langfuse vs Weights & Biases: Which is more popular by branded search?". https://gobrandwave.com/demand/global-en/compare/langfuse-vs-weights-biases

This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/langfuse-vs-weights-biases. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.