kitio.aivLLM vs Synexa AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. vLLM is completely free, while Synexa AI is paid.
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
- 100+ hosted models
- Single prediction API
- Per-second GPU billing
- Auto-scaling to zero
- Python and JavaScript SDKs
- Fine-tuning
| Feature | vLLM | Synexa AI |
|---|---|---|
| Best for | High-throughput open-source engine for serving LLMs in production | Serverless API for running image, video and speech models |
| Category | Models & APIs | Models & APIs |
| Pricing model | Free | Paid |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | No |
| Made by | vLLM project | Synexa AI |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
vLLM is completely free, while Synexa AI is paid.
Free plan
Cheapest paid plan
Top plan
Free trial
5 plans
RTX 3090
$0.43 / GPU hour
- 24GB GPU memory
- Billed per second
RTX 4090
$0.69 / GPU hour
- 24GB GPU memory
- Billed per second
A6000
$1.49 / GPU hour
- 48GB GPU memory
- Billed per second
A100 80GB
$2.49 / GPU hour
- 80GB GPU memory
- Billed per second
H100
$2.99 / GPU hour
- 80GB GPU memory
- Billed per second
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
Synexa AI
- Low per-hour GPU rates
- Popular models with no setup
- Pay only while running
- Costs vary with model run time
- Smaller ecosystem than Replicate
- No free plan listed
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 Synexa AI if you want:
- Low per-hour GPU rates
- Popular models with no setup
- Pay only while running
Watch out: costs vary with model run time.
vLLM vs Synexa AI FAQ
What is the difference between vLLM and Synexa AI?
vLLM: High-throughput open-source engine for serving LLMs in production. Synexa AI: Serverless API for running image, video and speech models. Both are models & apis tools.
Is vLLM or Synexa AI cheaper?
vLLM is completely free, while Synexa AI is paid.
Do vLLM and Synexa AI have free plans?
vLLM: Yes, fully free. Synexa AI: No.
Who makes vLLM?
vLLM is made by vLLM project, based in United States.
Who makes Synexa AI?
Synexa AI is made by Synexa AI.
Which should I choose, vLLM or Synexa AI?
Choose vLLM if you value excellent throughput and broad hardware support. Choose Synexa AI if you value low per-hour gpu rates and popular models with no setup.