kitio.aiOpenAI API vs Vercel AI Gateway
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. OpenAI API starts at See pricing page and Vercel AI Gateway starts at See pricing page. 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
- Responses API
- Agents SDK
- Realtime voice API
- Image and audio models
- Batch API
- Fine-tuning and evals
- Hundreds of models
- Automatic failover
- Spend budgets
- Request observability
- Bring your own key
| Feature | OpenAI API | Vercel AI Gateway |
|---|---|---|
| Best for | Developer API for GPT, reasoning, image, audio and embedding models | Unified API for hundreds of models with budgets and failover |
| Category | Models & APIs | Models & APIs |
| Pricing model | Paid | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | No | Yes |
| Made by | OpenAI | Vercel |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
OpenAI API starts at See pricing page and Vercel AI Gateway starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
GPT-6 Luna
$0.10 / $0.50 per 1M tokens
- Input / output
- Fast, low-cost model
- 1.05M context
GPT-6.1 Sol
$2 / $10 per 1M tokens
- Input / output
- Balanced model
- 1.05M context
GPT-6 Astra
$10 / $50 per 1M tokens
- Input / output
- Most capable model
- 1.05M context
2 plans
Free credits
Free
- $5 of credits every 30 days
- Access to all models
Pay as you go
Provider list price
- No markup on tokens
- Bring your own keys
- Budgets and usage monitoring
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
OpenAI API
- Wide model range in one API
- Mature SDKs and docs
- Built-in tools like web search
- Top models are costly at scale
- Rate limits depend on spend tier
- Model names change frequently
Vercel AI Gateway
- No token markup
- Tight AI SDK integration
- Good cost visibility
- Best inside the Vercel ecosystem
- Fewer media models
- Free credit is small
Which one should you choose?
Choose OpenAI API if you want:
- Wide model range in one API
- Mature SDKs and docs
- Built-in tools like web search
Watch out: top models are costly at scale.
Choose Vercel AI Gateway if you want:
- No token markup
- Tight AI SDK integration
- Good cost visibility
Watch out: best inside the vercel ecosystem.
OpenAI API vs Vercel AI Gateway FAQ
What is the difference between OpenAI API and Vercel AI Gateway?
OpenAI API: Developer API for GPT, reasoning, image, audio and embedding models. Vercel AI Gateway: Unified API for hundreds of models with budgets and failover. Both are models & apis tools.
Is OpenAI API or Vercel AI Gateway cheaper?
OpenAI API starts at See pricing page and Vercel AI Gateway starts at See pricing page. Check both pricing pages for current plans.
Do OpenAI API and Vercel AI Gateway have free plans?
OpenAI API: No. Vercel AI Gateway: Yes.
Who makes OpenAI API?
OpenAI API is made by OpenAI, based in United States.
Who makes Vercel AI Gateway?
Vercel AI Gateway is made by Vercel, based in United States.
Which should I choose, OpenAI API or Vercel AI Gateway?
Choose OpenAI API if you value wide model range in one api and mature sdks and docs. Choose Vercel AI Gateway if you value no token markup and tight ai sdk integration.