Head-to-Head Specification Audit
OpenAI API vs Greenhouse
Large Language Model API · Global
Specification Matrix
| Metric | OpenAI API | Greenhouse |
|---|---|---|
| Starting Price | $0/mo | Custom pricing |
| API Rate Limit | 500 req/minBetter | 100 req/min |
| Target Country | Global | Global |
| Category | AI Infrastructure | HR & Recruiting AI |
| Compliance (vendor-stated) | CCPA, GDPR, SOC2 | SOC2, GDPR, CCPA, NYC LL144 |
| Hosting Regions | US-East, EU-West, US-West | US-East, EU-West |
| Native Integrations | 6 listedTie | 6 listedTie |
OpenAI API — Key Specs
Vendor-stated- ✓Most capable frontier models: GPT-4o, o3, o4-mini
- ✓OpenAI Enterprise: GDPR DPA, HIPAA BAA, no training on API data
- ✓Function calling, structured outputs, vision — complete AI toolchain
- ✓Largest developer ecosystem and documentation
Greenhouse — Key Specs
Vendor-stated- ✓Best-in-class structured hiring methodology
- ✓Scorecard system reduces hiring manager subjectivity
- ✓SOC 2 Type II, GDPR, CCPA compliant
- ✓Integrates with 300+ HR tools
Frequently Asked Questions
Which is lower-priced, OpenAI API or Greenhouse?+
Greenhouse uses custom pricing. OpenAI API starts at Free plan available. Contact Greenhouse directly for a quote.
Which compliance frameworks do OpenAI API and Greenhouse list?+
Both list CCPA, GDPR, SOC2 in their vendor documentation. Greenhouse additionally lists NYC LL144. These are vendor-stated frameworks. VektorIndex has not independently audited these claims.
Which has a higher documented API rate limit — OpenAI API or Greenhouse?+
OpenAI API has a higher documented API rate limit at 500 req/min versus Greenhouse at 100 req/min.
Which data hosting regions do OpenAI API and Greenhouse support?+
OpenAI API lists hosting regions: US-East, EU-West, US-West. Greenhouse lists hosting regions: US-East, EU-West. For data residency requirements in Global, confirm exact region configuration directly with each vendor.
Data last updated: 29 August 2026 — Sourced from official vendor documentation. Not independently audited. Report incorrect information
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