The first dev platform for prompt engineering. Based in NYC.
PromptLayer has raised $4.8M in total funding. The most recent round was Seed. The last funding was announced in February 2025.
PromptLayer's investors include Thales, Verissimo Ventures, Gokul Rajaram, Romain Huet, Joshua Browder.
PromptLayer is headquartered in New York, United States.
The first dev platform for prompt engineering. Based in NYC.
PromptLayer is at the Seed stage.
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"PromptLayer — Funding & Investors." VCBacked, February 7, 2025, https://www.vcbacked.co/company/promptlayer. Accessed August 4, 2026.
VCBacked. (2025). PromptLayer — Funding & Investors. Retrieved August 4, 2026, from https://www.vcbacked.co/company/promptlayer
{{cite web |title=PromptLayer — Funding & Investors |url=https://www.vcbacked.co/company/promptlayer |website=VCBacked |access-date=August 4, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated