OpenAI Agents SDK (JavaScript) vs Vercel AI SDK
OpenAI Agents SDK (JavaScript) and Vercel AI SDK are both agent frameworks for TypeScript. OpenAI Agents SDK (JavaScript) is published by OpenAI and Vercel AI SDK by Vercel. On GitHub, Vercel AI SDK has 27,492 stars and OpenAI Agents SDK (JavaScript) has 3,939. Both were last active in Oct 2026. The table lines up where they differ (publisher, GitHub stars and languages) and has the install commands for both. Everything here comes from the listings' public sources and is refreshed daily. OpenAI Agents SDK (JavaScript) describes itself as: TypeScript and JavaScript framework for multi-agent workflows with tools, handoffs, guardrails, sandboxes and voice agents. Vercel AI SDK: TypeScript toolkit for AI apps and agents with a unified provider API, streaming, UI hooks and a wrapper for running established agent harnesses. Licenses: OpenAI Agents SDK (JavaScript) MIT, Vercel AI SDK unknown.
Updated Oct 26, 2026 · Built from catalog data; how we rank and grade
OpenAI Agents SDK (JavaScript)
OpenAI
TypeScript and JavaScript framework for multi-agent workflows with tools, handoffs, guardrails, sandboxes and voice agents.
Vercel AI SDK
Vercel
TypeScript toolkit for AI apps and agents with a unified provider API, streaming, UI hooks and a wrapper for running established agent harnesses.
Who should pick which
- Pick OpenAI Agents SDK (JavaScript) if you work in JavaScript.
- Pick OpenAI Agents SDK (JavaScript) if you want MCP support built in.
- Pick OpenAI Agents SDK (JavaScript) if you need several agents working together.
- Vercel AI SDK has the larger community: 27,492 GitHub stars against 3,939.
From listing data only. We don't pick a winner on security beyond the grades; read how grades work.
Side by side
| Fact | OpenAI Agents SDK (JavaScript) | Vercel AI SDK |
|---|---|---|
| Type | Harness | Harness |
| Publisher | OpenAI | Vercel |
| License | MIT | License unknown |
| Pricing | Not stated | Not stated |
| Runs | Not stated | Not stated |
| Auth | Not stated | Not stated |
| Hosts supported | Not stated | Not stated |
| Tools | Not listed yet | Not listed yet |
| Security grade | –Security: not graded yet | –Security: not graded yet |
| Freshness grade | AFreshness: A | AFreshness: A |
| GitHub stars | 3,939 | 27,492 |
| Weekly downloads | 1,193,362 | Not measured |
| Last release | Oct 20, 2026 | Oct 23, 2026 |
| Last activity | Oct 21, 2026 | Oct 23, 2026 |
Facts from each listing's public sources, checked daily. Tool lists arrive with tool scans.
Install
OpenAI Agents SDK (JavaScript)
npm install @openai/agents
Vercel AI SDK
npm install ai
Also consider
- 0.867score
Pi Agent Core
Earendil
Minimal TypeScript agent harness with an agent runtime, multi-provider LLM API, terminal UI and coding agent CLI that users extend themselves.
HarnessAFreshness: A★ 117.6K↓ 5.1M/wk - 0.831score
CopilotKit
CopilotKit
Open-source SDK that connects AI agents to app front ends with chat UI, generative UI, shared state and human approvals; creator of the AG-UI protocol.
HarnessAFreshness: A★ 38.2K↓ 286.2K/wk - 0.752score
PraisonAI
Mervin Praison
Python framework for multi-agent teams and workflows, with a CLI and Docker, MCP and A2A deployment options.
HarnessAFreshness: A★ 9.3K↓ 4.6K/wk
Questions
- Is OpenAI Agents SDK (JavaScript) or Vercel AI SDK more popular?
- Vercel AI SDK has more GitHub stars (27,492 against 3,939). Stars measure attention, not quality, so check freshness and docs too.
- Are OpenAI Agents SDK (JavaScript) and Vercel AI SDK open source?
- OpenAI Agents SDK (JavaScript) is open source (MIT); the other is unknown.
Related
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Cite this page
OpenAI Agents SDK (JavaScript) vs Vercel AI SDK. Agent Mart. https://agentmart.dev/compare/openai-agents-sdk-javascript-vs-vercel-ai-sdk (last updated 2026-10-26)