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LiteLLM
Vercel AI SDK
LiteLLM vs Vercel AI SDK
A side-by-side comparison of pricing, ratings, features, pros and cons.
| Overview | |||
| Description | Open-source proxy server unifying 100+ LLM APIs into one interface. | Open-source TypeScript toolkit from Vercel for building AI applications, with unified access to 100+ models across 16+ providers and built-in streaming. | |
| Category | |||
| Developer | Litellm | Vercel | |
| Verified Status | |||
| Last Updated | Sep 2026 | Sep 2026 | |
| Pricing | |||
| Pricing Model | Free | Free | |
| Free Plan | Yes | Yes | |
| Open Source | No | No | |
| Capabilities | |||
| Features | • OpenAI-compatible gateway to 100+ LLM providers • Spend tracking, budgets, and rate limiting across providers • Automatic fallbacks and load balancing between LLMs • Virtual keys and team-level access management • Observability integrations (Langfuse, Arize Phoenix, Langsmith, OpenTelemetry) | • Unified API across 100+ models and 16+ providers • Built-in streaming and automatic provider fallbacks • Text, image, speech, transcription, and video generation support • Structured tool calling for building agents • Framework-agnostic (React, Next.js, Vue, Svelte, Node.js) • Free and open source (npm install ai) | |
| Tags | proxyunified100-llms | sdktypescriptstreaming | |
| Platforms | — | Web | |
| Mobile Apps | — | No | |
| Trust and Engagement | |||
| Review Count | 0 | 0 | |
| Saves | 0 | 0 | |
| Views | 173 | 102 | |
| Quality Score | 53/100 | 45/100 | |
| Website Status | Online | Online | |
| Availability | |||
| Website | litellm.ai | sdk.vercel.ai | |
| Social Links | 3 linked | 3 linked | |
| Screenshots | Yes | Yes | |
| Reviews | |||
| Pros | • Free to use • Recommended by our editors | • Free to use | |
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