LangSmith vs Lunary:Which is searched more?
In September 2026, LangSmith had more branded searches than Lunary among LLM observability platforms worldwide. LangSmith had about 74,000 branded searches, while Lunary had 3,600. LangSmith made up 28.4% of all LLM observability platform searches we track, and Lunary accounted for 1.4%. These are worldwide searches for English-language branded terms.
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Is LangSmith or Lunary more popular in search?
Compare the platforms used to trace and evaluate language models. 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.
Share of searches by month for LangSmith, Lunary. The figures are in the table below the chart.
View monthly share of searches table
| Month | Langfuse | LangSmith | Weights & Biases | Arize Phoenix | Helicone | Lunary | Braintrust | Datadog LLM Observability |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 29.3% | 29.3% | 31.5% | 4.4% | 2.1% | 1.7% | 0.63% | 0.95% |
| Nov 2025 | 29.4% | 29.4% | 31.8% | 4.4% | 2.1% | 1.4% | 0.64% | 0.76% |
| Dec 2025 | 29.8% | 29.8% | 30.7% | 4% | 2.7% | 1.5% | 0.77% | 0.77% |
| Jan 2026 | 33.3% | 27.2% | 28% | 4.8% | 3% | 2% | 1.1% | 0.7% |
| Feb 2026 | 34.9% | 28.5% | 25.1% | 5.1% | 3.1% | 1.4% | 0.93% | 0.93% |
| Mar 2026 | 34.9% | 28.7% | 25.2% | 5.1% | 3.1% | 1.4% | 0.6% | 0.92% |
| Apr 2026 | 33.6% | 27.6% | 28.4% | 4.9% | 3% | 1.1% | 0.73% | 0.58% |
| May 2026 | 35.7% | 29.4% | 24.7% | 4.8% | 2.6% | 1.2% | 0.78% | 0.78% |
| Jun 2026 | 37.1% | 30.5% | 21.9% | 5.5% | 2.2% | 1.2% | 0.81% | 0.81% |
| Jul 2026 | 39.3% | 32.4% | 19.1% | 4.7% | 1.9% | 1.3% | 0.86% | 0.46% |
| Aug 2026 | 41.2% | 27.7% | 19.2% | 7% | 2% | 1.3% | 1.1% | 0.37% |
| Sep 2026 | 42.3% | 28.4% | 19.7% | 5.1% | 1.7% | 1.4% | 1.1% | 0.34% |
How has the LangSmith and Lunary comparison changed over the last 12 months?
3 findings
- LangSmith was ahead of Lunary in every measured month of the 12 months ending September 2026.
- 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.
- Across the 12 months ending September 2026, Lunary’s share of searches among LLM observability platforms worldwide moved from 1.7% to 1.4%, and its estimated monthly branded searches moved from 4.4K to 3.6K.
How did search popularity change for LLM observability platforms worldwide in September 2026?
2 changes
In September 2026, LangSmith gained share of searches among LLM observability platforms worldwide, from 27.7% to 28.4%.
Estimated monthly branded searches for Lunary worldwide fell 18.2% over 12 measured months, from 4.4K to 3.6K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using LangSmith’s and Lunary’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.
Other head-to-heads among LLM observability platforms
Langfuse vs LangSmith: compare search popularity
Langfuse vs Weights & Biases: compare search popularity
Langfuse vs Arize Phoenix: compare search popularity- LangSmith vs Weights & Biases: compare search popularity
- LangSmith vs Arize Phoenix: compare search popularity
- Weights & Biases vs Arize Phoenix: compare search popularity
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