kitio.aivLLM vs Vespa
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. vLLM is completely free, while Vespa is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- PagedAttention
- Continuous batching
- OpenAI-compatible server
- Multi-GPU parallelism
- LoRA serving
- Hybrid vector and text search
- On-node ML ranking
- Real-time updates
- Tensor support
- Vespa Cloud
| Feature | vLLM | Vespa |
|---|---|---|
| Best for | High-throughput open-source engine for serving LLMs in production | Open-source engine for search, recommendation and RAG at scale |
| Category | Models & APIs | Models & APIs |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | vLLM project | Vespa.ai |
| Based in | United States | Norway |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
vLLM is completely free, while Vespa is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
vLLM
- Excellent throughput
- Broad hardware support
- Industry-standard serving
- Needs server-class GPUs
- Many tuning flags
- Fast releases change defaults
Vespa
- Proven at very large scale
- Flexible ranking
- Open source
- Steep learning curve
- Heavy to self-host
- Configuration is verbose
Which one should you choose?
Choose vLLM if you want:
- Excellent throughput
- Broad hardware support
- Industry-standard serving
Watch out: needs server-class gpus.
Choose Vespa if you want:
- Proven at very large scale
- Flexible ranking
- Open source
Watch out: steep learning curve.
vLLM vs Vespa FAQ
What is the difference between vLLM and Vespa?
vLLM: High-throughput open-source engine for serving LLMs in production. Vespa: Open-source engine for search, recommendation and RAG at scale. Both are models & apis tools.
Is vLLM or Vespa cheaper?
vLLM is completely free, while Vespa is freemium.
Do vLLM and Vespa have free plans?
vLLM: Yes, fully free. Vespa: Yes.
Who makes vLLM?
vLLM is made by vLLM project, based in United States.
Who makes Vespa?
Vespa is made by Vespa.ai, based in Norway.
Which should I choose, vLLM or Vespa?
Choose vLLM if you value excellent throughput and broad hardware support. Choose Vespa if you value proven at very large scale and flexible ranking.