OpenAI Agents SDK VS Vercel AI SDK
As of 30 October 2026, Vercel AI SDK is named by 106 companies and OpenAI Agents SDK by 140; OpenAI Agents SDK skews to companies under 200 people (41% vs 53%), Vercel AI SDK to companies over 1,000 (16% vs 36%).
As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
The website-and-DNS footprint is not comparable between a marketing suite and a CRM: OpenAI Agents SDK's script and mail records show on hundreds of thousands of small sites, Vercel AI SDK rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- OpenAI Agents SDK: 2–200 employees
- 41%
- Vercel AI SDK: 2–200 employees
- 53%
- OpenAI Agents SDK: 1,000+ employees
- 36%
- Vercel AI SDK: 1,000+ employees
- 16%
- Postings per company, 90 days
- 2.7 · 1.7
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | OpenAI Agents SDK | share | Vercel AI SDK | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 1 | 1% | 12 | 11% | Vercel AI SDK |
| 2-10 employees | 11 | 8% | 19 | 18% | Vercel AI SDK |
| 11-50 employees | 19 | 14% | 21 | 20% | Vercel AI SDK |
| 51-200 employees | 28 | 20% | 16 | 15% | OpenAI Agents SDK |
| 201-500 employees | 18 | 13% | 14 | 13% | even |
| 501-1000 employees | 12 | 9% | 7 | 7% | even |
| 1001-5000 employees | 24 | 17% | 13 | 12% | OpenAI Agents SDK |
| 5001-10000 employees | 9 | 6% | 2 | 2% | OpenAI Agents SDK |
| 10,001+ employees | 18 | 13% | 2 | 2% | OpenAI Agents SDK |
| Segment | OpenAI Agents SDK | share | Vercel AI SDK | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 80 | 57% | 75 | 71% | Vercel AI SDK |
| Business & finance services | 36 | 26% | 14 | 13% | OpenAI Agents SDK |
| Manufacturing & industry | 6 | 4% | 4 | 4% | even |
| Health care | 4 | 3% | 2 | 2% | even |
| Public, community & associations | 3 | 2% | 2 | 2% | even |
| Media & content | 3 | 2% | 2 | 2% | even |
| Consumer services & leisure | 2 | 1% | 2 | 2% | even |
| Property & construction | 2 | 1% | 2 | 2% | even |
| Utilities & infrastructure | 2 | 1% | – | – | outside top 12 |
| Commerce & trade | 1 | 1% | 2 | 2% | even |
| Hospitality & travel | 1 | 1% | – | – | outside top 12 |
| Transport, logistics & rental | – | – | 1 | 1% | outside top 12 |
| Segment | OpenAI Agents SDK | share | Vercel AI SDK | share | Leans |
|---|---|---|---|---|---|
| United States | 92 | 66% | 63 | 59% | OpenAI Agents SDK |
| United Kingdom | 9 | 6% | 8 | 8% | even |
| Germany | 8 | 6% | 6 | 6% | even |
| France | 5 | 4% | 2 | 2% | even |
| Australia | 3 | 2% | – | – | outside top 12 |
| Canada | 3 | 2% | 4 | 4% | even |
| Sweden | 3 | 2% | – | – | outside top 12 |
| United Arab Emirates | 2 | 1% | – | – | outside top 12 |
| Spain | 2 | 1% | 2 | 2% | even |
| India | 2 | 1% | 2 | 2% | even |
| Argentina | 1 | 1% | 1 | 1% | even |
| BD | 1 | 1% | – | – | outside top 12 |
| Austria | – | – | 2 | 2% | outside top 12 |
| Belgium | – | – | 2 | 2% | outside top 12 |
| Italy | – | – | 2 | 2% | outside top 12 |
| Netherlands | – | – | 2 | 2% | outside top 12 |
| Segment | OpenAI Agents SDK | share | Vercel AI SDK | share | Leans |
|---|---|---|---|---|---|
| Data & AI | 244 | 55% | 82 | 32% | OpenAI Agents SDK |
| Software engineering | 80 | 18% | 113 | 43% | Vercel AI SDK |
| Sales | 21 | 5% | 6 | 2% | OpenAI Agents SDK |
| IT operations & business systems | 19 | 4% | 4 | 2% | OpenAI Agents SDK |
| Product, program & project management | 8 | 2% | 11 | 4% | Vercel AI SDK |
| General management & consulting | 6 | 1% | – | – | outside top 12 |
| Administration & office | 1 | 0% | – | – | outside top 12 |
| Customer service & success | 1 | 0% | 8 | 3% | Vercel AI SDK |
| Engineering (non-software) | 1 | 0% | 7 | 3% | Vercel AI SDK |
| Finance & accounting | 1 | 0% | 1 | 0% | even |
| Marketing & communications | – | – | 3 | 1% | outside top 12 |
| Business development & strategy | – | – | 2 | 1% | outside top 12 |
| Unclassified | – | – | 2 | 1% | outside top 12 |
| Design & UX | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using OpenAI Agents SDK →
Companies using Vercel AI SDK →
llm app frameworks ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Vercel AI SDK is named by 106 companies in job postings and OpenAI Agents SDK by 140; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/openai-agents-sdk-vs-vercel-ai-sdk)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
- Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
- SegmentsCountry, size and industry from the company profile built from its website.
- Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
OpenAI Agents SDK vs Vercel AI SDK: questions
Which is more used, OpenAI Agents SDK or Vercel AI SDK?
By companies naming it in their own job postings, OpenAI Agents SDK (140) over Vercel AI SDK (106). By website-and-DNS footprint, Vercel AI SDK (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses OpenAI Agents SDK?
41% of OpenAI Agents SDK companies have 2 to 200 employees, against 53% for Vercel AI SDK. 36% of OpenAI Agents SDK companies have over 1,000 employees, against 16% for Vercel AI SDK.
Do companies run both?
0 companies name both in their postings, usually OpenAI Agents SDK in marketing and Vercel AI SDK in sales, or during a migration.
Where do these numbers come from?
From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.
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