Head to head · Coding · updated Oct 15, 2026
smolagents vs Vercel AI SDK
smolagents scores 67 to Vercel AI SDK's 66 on public evidence for build AI agents (frameworks), and they rank #1 and #2 there. Both are free to start. Numbers below are the same public signals the ranking uses, recomputed nightly — nothing here is sponsored.
smolagents
Minimal Python library for agents that write and execute code as their actions.
+ Code-as-action agents in about a thousand lines of core code that work with any Hub model.
− Running model-written Python needs sandboxing, which is left mostly to you.
Vercel AI SDK
TypeScript toolkit for streaming LLM responses, tool calls, and agents across providers and UI frameworks.
+ Unified provider interface and React hooks make streaming chat UIs trivial.
− Major-version upgrades have required significant rewrites.
Side by side
public evidence| smolagents | Vercel AI SDK | |
|---|---|---|
| Evidence score / 100 | 67 | 66 |
| GitHub stars | 29,864 | 27,336 |
| Hacker News stories, 30d | 0 | 0 |
| Release-feed mentions, 30d | 0 | 0 |
| Last activity | 8 days ago | 0 days ago |
| Pricing | Open source · Free | Open source · Free; AI Gateway usage-based |
| Platforms | cli, api | api, cli |
| Maker | Hugging Face | Vercel |
Which one?
Pick smolagents if
- you want the stronger public evidence (67 vs 66)
Best for lightweight agents with open models.
Pick Vercel AI SDK if
Unified provider interface and React hooks make streaming chat UIs trivial.
Best for Next.js and React apps calling LLMs.