--- title: "Langfuse vs LangSmith: Which is searched more?" description: "Is Langfuse or LangSmith more popular in search? 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/categories/llm-observability-platforms/compare/langfuse-vs-langsmith" publisher: "Brandwave" --- # Langfuse vs LangSmith: Which is searched more? Is Langfuse or LangSmith more popular in search? 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 LangSmith - **Competitive set**: LLM observability platforms - **Market**: Global - **Month measured**: Sep 2026 - **Langfuse Share of Search**: 42.3% - **LangSmith Share of Search**: 28.4% ## Is Langfuse or LangSmith more popular in search? - In September 2026, Langfuse had more branded searches than LangSmith among LLM observability platforms worldwide. Langfuse had about 110,000 branded searches, while LangSmith had 74,000. Langfuse made up 42.3% of all LLM observability platform searches we track, and LangSmith accounted for 28.4%. - Langfuse was ahead of LangSmith in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Langfuse’s share of searches among LLM observability platforms worldwide moved from 29.3% to 42.3%, and its estimated monthly branded searches moved from 74K to 110K. - Across the 12 months ending September 2026, LangSmith’s share of searches among LLM observability platforms worldwide moved from 29.3% to 28.4%, and its estimated monthly branded searches held steady at 74K. ## Top LLM observability platforms in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, both Langfuse and LangSmith showed up in all five answers. Langfuse was listed before LangSmith in three of them. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Langfuse | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | LangSmith | 2nd | 3 of 3 | 2 of 2 | 5 of 5 | | Arize Phoenix | 3rd | 3 of 3 | 2 of 2 | 5 of 5 | | Braintrust | 4th | 3 of 3 | 0 of 2 | 3 of 5 | | Datadog LLM Observability | 5th | 3 of 3 | 2 of 2 | 5 of 5 | | Helicone | 6th | 0 of 3 | 2 of 2 | 2 of 5 | | Lunary | 7th | 0 of 3 | 2 of 2 | 2 of 5 | | Weights & Biases | 8th | 1 of 3 | 0 of 2 | 1 of 5 | ## Every AI answer about LLM observability platforms - Asked ChatGPT "Which LLM observability platform should I use?": 1. Langfuse, 2. LangSmith, 3. Braintrust, 4. Arize Phoenix, 5. Datadog LLM Observability - Asked ChatGPT "What are the best LLM observability platforms?": 1. Langfuse, 2. LangSmith, 3. Braintrust, 4. Arize Phoenix, 5. Datadog LLM Observability, 6. Weights & Biases - Asked ChatGPT "What's the best LLM observability platform for a machine learning team?": 1. Langfuse, 2. Braintrust, 3. LangSmith, 4. Arize Phoenix, 5. Datadog LLM Observability - Searched Google, AI Overview "llm observability platforms": 1. LangSmith, 2. Langfuse, 3. Arize Phoenix, 4. Helicone, 5. Datadog LLM Observability, 6. Lunary - Searched Google, AI Overview "llm monitoring tools": 1. LangSmith, 2. Langfuse, 3. Datadog LLM Observability, 4. Helicone, 5. Arize Phoenix, 6. Lunary Brands are listed in the order each answer named them. The answers were collected in the United States on October 21, 2026. ## How did search popularity change for LLM observability platforms worldwide in September 2026? - In September 2026, Langfuse gained share of searches among LLM observability platforms worldwide, from 41.2% to 42.3%. - In September 2026, LangSmith gained share of searches among LLM observability platforms worldwide, from 27.7% to 28.4%. ## Month by month | Month | Langfuse estimated searches | Langfuse Share of Search | Langfuse rank | LangSmith estimated searches | LangSmith Share of Search | LangSmith rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 74K | 29.3% | 2 | 74K | 29.3% | 3 | | Nov 2025 | 74K | 29.4% | 2 | 74K | 29.4% | 3 | | Dec 2025 | 74K | 29.8% | 2 | 74K | 29.8% | 3 | | Jan 2026 | 90.5K | 33.3% | 1 | 74K | 27.2% | 3 | | Feb 2026 | 90.5K | 34.9% | 1 | 74K | 28.5% | 2 | | Mar 2026 | 110K | 34.9% | 1 | 90.5K | 28.7% | 2 | | Apr 2026 | 110K | 33.6% | 1 | 90.5K | 27.6% | 3 | | May 2026 | 110K | 35.7% | 1 | 90.5K | 29.4% | 2 | | Jun 2026 | 110K | 37.1% | 1 | 90.5K | 30.5% | 2 | | Jul 2026 | 110K | 39.3% | 1 | 90.5K | 32.4% | 2 | | Aug 2026 | 110K | 41.2% | 1 | 74K | 27.7% | 2 | | Sep 2026 | 110K | 42.3% | 1 | 74K | 28.4% | 2 | ## How each brand is measured Brandwave collects information about searches that people make online using Langfuse’s and LangSmith’s 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”. - **LangSmith**: Measured on the search term “langsmith”. - [Langfuse profile](/demand/global-en/brands/langfuse) - [LangSmith profile](/demand/global-en/brands/langsmith) - [All LLM observability platforms worldwide](/demand/global-en/categories/llm-observability-platforms): The set both shares are measured inside, 8 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Langfuse or LangSmith more popular in search? In September 2026, Langfuse had more branded searches than LangSmith among LLM observability platforms worldwide. Langfuse had about 110,000 branded searches, while LangSmith had 74,000. Langfuse made up 42.3% of all LLM observability platform searches we track, and LangSmith accounted for 28.4%. ## Cite this page Brandwave. "Langfuse vs LangSmith: Which is searched more?". https://gobrandwave.com/demand/global-en/categories/llm-observability-platforms/compare/langfuse-vs-langsmith This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/llm-observability-platforms/compare/langfuse-vs-langsmith. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.