Prompt management platforms:Which brands are most popular in search?
In August 2026, LangSmith was the most searched among prompt management platforms worldwide, with an estimated 74K branded searches and 71% estimated Share of Search within this set. These are worldwide searches for English-language branded terms.
LangSmith71%
Promptfoo21.3%Helicone5.2%
PromptLayer1.5%
Humanloop0.96%
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Share of SearchLeaderboard
Compare the tools teams use to version and test prompts. 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 Search by month for LangSmith, Promptfoo, Helicone. The figures are in the table below the chart.
View monthly share of search table
| Month | LangSmith | Promptfoo | Helicone | PromptLayer | Humanloop |
|---|---|---|---|---|---|
| Oct 2025 | 76.2% | 10.2% | 5.6% | 5.6% | 2.5% |
| Nov 2025 | 74.9% | 12.2% | 5.5% | 5.5% | 1.9% |
| Dec 2025 | 74.7% | 12.2% | 6.7% | 4.4% | 1.9% |
| Jan 2026 | 71% | 14.2% | 7.8% | 5.2% | 1.8% |
| Feb 2026 | 71.9% | 14.4% | 7.9% | 4.3% | 1.6% |
| Mar 2026 | 50.1% | 41% | 5.5% | 2.4% | 1.1% |
| Apr 2026 | 68% | 20.4% | 7.4% | 2.7% | 1.4% |
| May 2026 | 72.5% | 17.8% | 6.5% | 1.9% | 1.3% |
| Jun 2026 | 73.7% | 18.1% | 5.4% | 1.5% | 1.3% |
| Jul 2026 | 74.6% | 18.3% | 4.5% | 1.6% | 1.1% |
| Aug 2026 | 71% | 21.3% | 5.2% | 1.5% | 0.96% |
| Sep 2026 | — | — | — | — | — |
This month’s ranking, August 2026
| Rank | Brand | Share of Search | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 71% | 74K | -18.2% | -3.6 points | |
| 2, held 2nd | 21.3% | 22.2K | 0% | +3 points | |
| 3, held 3rd | 5.2% | 5.4K | 0% | +0.7 points | |
| 4, held 4th | 1.5% | 1.6K | -15.8% | 0 points | |
| 5, held 5th | 0.96% | 1K | -23.1% | -0.1 points |
71%
Held 1st. 74K estimated branded searches, -18.2% vs prior month. Share -3.6 points.
21.3%
Held 2nd. 22.2K estimated branded searches, 0% vs prior month. Share +3 points.
3.
5.2%
Held 3rd. 5.4K estimated branded searches, 0% vs prior month. Share +0.7 points.
1.5%
Held 4th. 1.6K estimated branded searches, -15.8% vs prior month. Share 0 points.
0.96%
Held 5th. 1K estimated branded searches, -23.1% vs prior month. Share -0.1 points.
Compare search popularity between leading brands
Which brand is most popular in search among prompt management platforms worldwide?
5 brands
In August 2026, LangSmith was the most searched among prompt management platforms worldwide, with an estimated 74K branded searches and 71% estimated Share of Search within this set. Promptfoo is in 2nd place, 49.7 percentage points behind at 21.3% Share of Search.
| Brand | Share of Search | Peak | Low | Rank |
|---|---|---|---|---|
| LangSmith | 76.2% → 71% | 76.2%Oct 2025 | 50.1%Mar 2026 | 1st |
| Promptfoo | 10.2% → 21.3% | 41%Mar 2026 | 10.2%Oct 2025 | 2nd |
| Helicone | 5.6% → 5.2% | 7.9%Feb 2026 | 4.5%Jul 2026 | 3rd |
| PromptLayer | 5.6% → 1.5% | 5.6%Oct 2025 | 1.5%Aug 2026 | 4th |
| Humanloop | 2.5% → 0.96% | 2.5%Oct 2025 | 0.96%Aug 2026 | 5th |
Each finding as a sentence
- Across the 11 months ending August 2026, LangSmith’s estimated Share of Search among prompt management platforms worldwide decreased from 76.2% to 71%.
- Across the 11 months ending August 2026, Promptfoo’s estimated Share of Search among prompt management platforms worldwide increased from 10.2% to 21.3%.
- Across the 11 months ending August 2026, PromptLayer’s estimated Share of Search among prompt management platforms worldwide decreased from 5.6% to 1.5%.
- Across the 11 months ending August 2026, Humanloop’s estimated Share of Search among prompt management platforms worldwide decreased from 2.5% to 0.96%.
- Across the 11 months ending August 2026, LangSmith’s estimated Share of Search among prompt management platforms worldwide peaked at 76.2% in October 2025 and was lowest at 50.1% in March 2026.
- Across the 11 months ending August 2026, Promptfoo’s estimated Share of Search among prompt management platforms worldwide peaked at 41% in March 2026 and was lowest at 10.2% in October 2025.
- Across the 11 months ending August 2026, Helicone’s estimated Share of Search among prompt management platforms worldwide peaked at 7.9% in February 2026 and was lowest at 4.5% in July 2026.
- Across the 11 months ending August 2026, Helicone held steady: its estimated Share of Search among prompt management platforms worldwide moved less than 0.5 percentage points.
How did search popularity change for prompt management platforms worldwide in August 2026?
5 changes
In August 2026, Promptfoo gained estimated Share of Search among prompt management platforms worldwide, from 18.3% to 21.3%.
In August 2026, Helicone gained estimated Share of Search among prompt management platforms worldwide, from 4.5% to 5.2%.
In August 2026, LangSmith lost estimated Share of Search among prompt management platforms worldwide, from 74.6% to 71%.
Estimated monthly branded searches for PromptLayer worldwide fell 70.4% over 11 measured months, from 5.4K to 1.6K in August 2026.
Estimated monthly branded searches for Humanloop worldwide fell 58.3% over 11 measured months, from 2.4K to 1K in August 2026.
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