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77%
18% YoY
#2
Summary
- OpenAI ranks #2 within the Foundational LLMs category, maintaining its position month-over-month.
- As of September 2026, 77% of organizations who have a vendor in the Foundational LLMs category use OpenAI: down 18 percentage points from last year.
- OpenAI has the highest adoption among mid-market companies (84%), compared to enterprise (83%), small-to-medium businesses (75%), and micro-SMB (71%).
- OpenAI key capabilities include large language model APIs, multimodal interfaces, and developer-focused integrations, supporting text generation, image processing, and code completion at enterprise scale.
Are businesses buying OpenAI?
Key stats
77%
18% YoY
Mid-Market, 44%
39%
31%
#2
#2
Adoption Rates by company size
| Company size | Adoption rate |
|---|---|
| SMB | 75% |
| Mid-market | 84% |
| Enterprise | 83% |
About OpenAI
OpenAI is an artificial intelligence research and deployment company developing advanced models like GPT and DALL-E. It aims to ensure that artificial general intelligence benefits all of humanity.
Procure OpenAI with Ramp
See all vendors in Foundational LLMsHave feedback?AI agents handle purchasing from source to payment. Employees buy faster. Finance controls every dollar.
- Matches POs to invoices automatically
- Manages intake, approvals, and vendor onboarding in one system
- Enforces policy controls before purchases are made
About this data
These insights come from Ramp’s procurement and renewal data, built on real-world transactions observed across our platform. Figures represent aggregated observations from Ramp Procurement and Renewals activity.
| Date | New adopter share | Competitor switch rate | Dominant FTE segment | Adoption rate (Enterprise) | Adoption rate (Mid-Market) | Adoption rate (SMB) |
|---|---|---|---|---|---|---|
| Aug 2026 | 43% | 32% | Mid-Market, 44% | 84% | 85% | 77% |
| Jul 2026 | 42% | 31% | Mid-Market, 44% | 85% | 86% | 77% |
| Jun 2026 | 41% | 29% | Mid-Market, 45% | 86% | 87% | 79% |
| May 2026 | 41% | 28% | Mid-Market, 45% | 87% | 88% | 80% |
| Apr 2026 | 39% | 27% | Mid-Market, 45% | 89% | 89% | 82% |
| Mar 2026 | 38% | 27% | Mid-Market, 45% | 91% | 91% | 85% |
| Feb 2026 | 50% | 28% | Mid-Market, 45% | 93% | 94% | 89% |
| Jan 2026 | 62% | 30% | Mid-Market, 45% | 96% | 96% | 92% |
| Dec 2025 | 77% | 30% | Mid-Market, 45% | 96% | 96% | 94% |
| Nov 2025 | 79% | 30% | Mid-Market, 45% | 96% | 96% | 94% |
| Oct 2025 | 81% | 29% | Mid-Market, 46% | 97% | 96% | 95% |
| Sep 2025 | 86% | 27% | Mid-Market, 46% | 96% | 97% | 95% |
| Aug 2025 | 86% | 26% | Mid-Market, 46% | 97% | 97% | 95% |
| Jul 2025 | 84% | 14% | Mid-Market, 46% | 96% | 97% | 95% |
| Jun 2025 | 88% | 16% | Mid-Market, 46% | 97% | 98% | 96% |
| May 2025 | 90% | 16% | Mid-Market, 46% | 96% | 98% | 96% |
| Apr 2025 | 91% | 16% | Mid-Market, 46% | 96% | 98% | 96% |
| Mar 2025 | 85% | 15% | Mid-Market, 46% | 96% | 98% | 95% |
| Feb 2025 | 88% | 17% | Mid-Market, 46% | 98% | 98% | 96% |
| Jan 2025 | 88% | 17% | Mid-Market, 45% | 98% | 98% | 96% |
| Dec 2024 | 90% | 18% | Mid-Market, 45% | 97% | 98% | 96% |
| Nov 2024 | 87% | 17% | Mid-Market, 45% | 97% | 98% | 96% |
| Oct 2024 | 87% | 18% | Mid-Market, 44% | 98% | 98% | 97% |
| Sep 2024 | 91% | 22% | Mid-Market, 44% | 99% | 99% | 97% |
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