kitio.aiOpenAI API vs AI/ML API
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 AI/ML API 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
- 1,000+ models in one API
- Per-model price list
- Playground
- MCP server
- Image, video and audio models
| Feature | OpenAI API | AI/ML API |
|---|---|---|
| Best for | Developer API for GPT, reasoning, image, audio and embedding models | One API and bill for over 1,000 text, image, video and audio models |
| Category | Models & APIs | Models & APIs |
| Pricing model | Paid | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | No | Yes |
| Made by | OpenAI | AI/ML API |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
OpenAI API starts at See pricing page and AI/ML API 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
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
AI/ML API
- One key and bill for many providers
- Transparent per-token pricing
- Works with Claude and Cursor via MCP
- Adds a middle layer between you and providers
- Prices differ slightly from direct APIs
- Large catalog can be hard to navigate
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 AI/ML API if you want:
- One key and bill for many providers
- Transparent per-token pricing
- Works with Claude and Cursor via MCP
Watch out: adds a middle layer between you and providers.
OpenAI API vs AI/ML API FAQ
What is the difference between OpenAI API and AI/ML API?
OpenAI API: Developer API for GPT, reasoning, image, audio and embedding models. AI/ML API: One API and bill for over 1,000 text, image, video and audio models. Both are models & apis tools.
Is OpenAI API or AI/ML API cheaper?
OpenAI API starts at See pricing page and AI/ML API starts at See pricing page. Check both pricing pages for current plans.
Do OpenAI API and AI/ML API have free plans?
OpenAI API: No. AI/ML API: Yes.
Who makes OpenAI API?
OpenAI API is made by OpenAI, based in United States.
Who makes AI/ML API?
AI/ML API is made by AI/ML API.
Which should I choose, OpenAI API or AI/ML API?
Choose OpenAI API if you value wide model range in one api and mature sdks and docs. Choose AI/ML API if you value one key and bill for many providers and transparent per-token pricing.