Braintrust vs PromptLayer:Which is more popular?
In September 2026, Braintrust had more branded searches than PromptLayer among prompt management platforms worldwide. Braintrust had about 2,900 branded searches, while PromptLayer had 1,900. Braintrust made up 1.3% of all prompt management platform searches we track, and PromptLayer accounted for 0.88%. When we asked ChatGPT and Google AI Overviews about prompt management platforms, PromptLayer appeared in all five answers and Braintrust in four. PromptLayer was mentioned before Braintrust in three out of five answers.
Who do people search for more?
Braintrust, about 53% more searches than PromptLayer
Who does AI mention more?
PromptLayer, mentioned in every answer we collected
Who does AI recommend more?
PromptLayer, named ahead of Braintrust in 3 of 5 answers
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Top prompt management platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, PromptLayer appeared in all five answers. Braintrust was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. PromptLayer was listed before Braintrust in three out of five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Langfuse1st- PromptLayer2nd
LangSmith3rd- Braintrust4th
Promptfoo5th
Helicone–
Humanloop–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Langfuse5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- LangSmith5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- PromptLayer5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Braintrust4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Promptfoo3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Helicone0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Humanloop0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about prompt management platforms
5 answers
Asked ChatGPT
“Which prompt management platform should I use?”
Asked ChatGPT
“What are the best prompt management platforms?”
Asked ChatGPT
“What's the best prompt management platform for a small ai team?”
Searched Google, AI Overview
“prompt management platform”
Searched Google, AI Overview
“prompt versioning tool”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is Braintrust or PromptLayer more popular in search?
This chart shows how often people search Google for Braintrust and PromptLayer by name. Each line represents a brand's share of searches for all seven prompt management platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for Braintrust, PromptLayer. The figures are in the table below the chart.
View monthly share of searches table
| Month | Langfuse | LangSmith | Promptfoo | Helicone | Braintrust | PromptLayer | Humanloop |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 42.8% | 42.8% | 5.7% | 3.1% | 0.93% | 3.1% | 1.4% |
| Nov 2025 | 42.4% | 42.4% | 6.9% | 3.1% | 0.92% | 3.1% | 1.1% |
| Dec 2025 | 42.3% | 42.3% | 6.9% | 3.8% | 1.1% | 2.5% | 1.1% |
| Jan 2026 | 45.8% | 37.4% | 7.5% | 4.1% | 1.5% | 2.7% | 0.96% |
| Feb 2026 | 46.2% | 37.8% | 7.6% | 4.1% | 1.2% | 2.2% | 0.82% |
| Mar 2026 | 37.6% | 30.9% | 25.3% | 3.4% | 0.65% | 1.5% | 0.65% |
| Apr 2026 | 44.8% | 36.9% | 11% | 4% | 0.98% | 1.5% | 0.77% |
| May 2026 | 46.4% | 38.2% | 9.4% | 3.4% | 1% | 1% | 0.67% |
| Jun 2026 | 46.8% | 38.5% | 9.4% | 2.8% | 1% | 0.81% | 0.68% |
| Jul 2026 | 47.1% | 38.7% | 9.5% | 2.3% | 1% | 0.81% | 0.56% |
| Aug 2026 | 50.7% | 34.1% | 10.2% | 2.5% | 1.3% | 0.74% | 0.46% |
| Sep 2026 | 50.8% | 34.2% | 10.3% | 2% | 1.3% | 0.88% | 0.46% |
How has the Braintrust and PromptLayer comparison changed over the last 12 months?
3 findings
- The lead changed hands once in the 12 months ending September 2026: Braintrust took it in June 2026.
- Across the 12 months ending September 2026, Braintrust’s share of searches among prompt management platforms worldwide moved from 0.93% to 1.3%, and its estimated monthly branded searches moved from 1.6K to 2.9K.
- Across the 12 months ending September 2026, PromptLayer’s share of searches among prompt management platforms worldwide moved from 3.1% to 0.88%, and its estimated monthly branded searches moved from 5.4K to 1.9K.
How did search popularity change for prompt management platforms worldwide in September 2026?
2 changes
Estimated monthly branded searches for Braintrust worldwide rose 81.3% over 12 measured months, from 1.6K to 2.9K in September 2026.
Estimated monthly branded searches for PromptLayer worldwide fell 64.8% over 12 measured months, from 5.4K to 1.9K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Braintrust’s and PromptLayer’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.
Braintrust
1 branded search term
- braintrust ai
PromptLayer
1 branded search term
- promptlayer
Other head-to-heads among prompt management platforms
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