llama.cpp vs vLLM
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. llama.cpp starts at Free and vLLM starts at Free. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- GGUF format
- Low-bit quantization
- Many GPU backends
- OpenAI-compatible server
- Built-in web UI
- PagedAttention
- Continuous batching
- OpenAI-compatible server
- Multi-GPU parallelism
- LoRA serving
| Feature | llama.cpp | vLLM |
|---|---|---|
| Best for | C/C++ engine for running LLMs efficiently on CPUs and GPUs | High-throughput open-source engine for serving LLMs in production |
| Category | Models & APIs | Models & APIs |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | ggml-org | vLLM project |
| Based in | – | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Both offer: OpenAI-compatible server.
Pricing compared
llama.cpp starts at Free and vLLM starts at Free. Check both pricing pages for current plans.
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
llama.cpp
- Runs on modest hardware
- Very fast new-model support
- Foundation of many apps
- Command-line heavy
- Build options can confuse
- Less suited to high-concurrency serving
vLLM
- Excellent throughput
- Broad hardware support
- Industry-standard serving
- Needs server-class GPUs
- Many tuning flags
- Fast releases change defaults
Which one should you choose?
Choose llama.cpp if you want:
- Runs on modest hardware
- Very fast new-model support
- Foundation of many apps
Watch out: command-line heavy.
Choose vLLM if you want:
- Excellent throughput
- Broad hardware support
- Industry-standard serving
Watch out: needs server-class gpus.
llama.cpp vs vLLM FAQ
What is the difference between llama.cpp and vLLM?
llama.cpp: C/C++ engine for running LLMs efficiently on CPUs and GPUs. vLLM: High-throughput open-source engine for serving LLMs in production. Both are models & apis tools.
Is llama.cpp or vLLM cheaper?
llama.cpp starts at Free and vLLM starts at Free. Check both pricing pages for current plans.
Do llama.cpp and vLLM have free plans?
llama.cpp: Yes, fully free. vLLM: Yes, fully free.
Who makes llama.cpp?
llama.cpp is made by ggml-org.
Who makes vLLM?
vLLM is made by vLLM project, based in United States.
Which should I choose, llama.cpp or vLLM?
Choose llama.cpp if you value runs on modest hardware and very fast new-model support. Choose vLLM if you value excellent throughput and broad hardware support.