What are the best tools for prompt engineering?
Asked "What are the best tools for prompt engineering?", ChatGPT, Copilot, Gemini, Google AI Mode and Perplexity named 41 distinct tools across 15 answers on September 7, 2026, and 21 of them in two or more answers, and all 5 engines agreed on PromptLayer, the only tool every engine named.
Measured acrossChatGPTCopilotGeminiGoogle AI ModePerplexity
21 of 41 names confirmed · named in 2 or more of 15 answers · asked September 7, 2026 · 5 engines
The best tools for prompt engineering include interactive playgrounds like OpenAI Playground and Google AI Studio, management platforms like PromptLayer and Braintrust, and evaluation frameworks like LangSmith and PromptPerfect. The choice of tool depends on the specific needs of the user, such as prototyping, production, or automated evaluation.
- 1PromptLayernamed in 13 of 15 answers
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- 2LangSmithnamed in 12 of 15 answers
- 3Promptfoonamed in 11 of 15 answers
- 4OpenAI Playgroundnamed in 9 of 15 answers
- 5Braintrustnamed in 8 of 15 answers
- 6Langfusenamed in 8 of 15 answers
- 7PromptHubnamed in 6 of 15 answers
- 8PromptPerfectnamed in 5 of 15 answers
- 9Google AI Studionamed in 4 of 15 answers
- 10Humanloopnamed in 4 of 15 answers
- 11Maxim AInamed in 3 of 15 answers
- 12Anthropic Consolenamed in 3 of 15 answers
- 13FlowGPTnamed in 3 of 15 answers
- 14PromptHeronamed in 2 of 15 answers
- 15Team-GPT Prompt Buildersnamed in 2 of 15 answers
- 16Vellumnamed in 2 of 15 answers
- 17Heliconenamed in 2 of 15 answers
- 18Portkeynamed in 2 of 15 answers
- 19Promptablenamed in 2 of 15 answers
- 20Orq.ainamed in 2 of 15 answers
- 21Arize Phoenixnamed in 2 of 15 answers
- 22LangChainnamed in 1 of 15 answersone answer
- 23Galileo AInamed in 1 of 15 answersone answer
- 24OpenAInamed in 1 of 15 answersone answer
- 25Vellum AInamed in 1 of 15 answersone answer
LOCKED
The full measurement
- The position each of the 5 engines gave all 41 names.
- How many of the 15 answers named each of them.
- 146 sampled observations behind this ranking, and where the engines disagree.
- Fan-out — the query each engine actually searched.
- Every citation, and the sources nobody cited.