Does Deeperer use OpenAI?
Yes
We hold strong evidence for this.
- The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.
- The company's privacy policy names it as a processor, controller or partner.
How we know
About Deeperer
Deeperer produces research reports by planning, searching and writing them section by section from web sources, with citations quoting each page. It serves individual researchers, teams and enterprises that need reports which can be updated and republished via PDF, DOCX, markdown, API and MCP.
Summarized from its homepage on 9 Nov 2026.
What else Deeperer uses
Deeperer has evidence for 12 vendors. The strongest:
Vercel
Google
Polar
Anthropic
Parallel
Resend
Supabase
Upstash
Cloudflare
Other companies using OpenAI
Check any company's vendors in seconds
See Deeperer's full stack with a source for every vendor, and ask the same question about any company from the API, Claude or your browser.
- Every company and vendor, with its public source
- 100 API calls a month, plus MCP and the Chrome extension
- Work email only. No card, no sales call