kitio.aiOpenAI API vs Perplexity API Platform
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 Perplexity API Platform 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
- Sonar answer models
- Search API
- Agent API
- Source citations
- Pay-as-you-go billing
| Feature | OpenAI API | Perplexity API Platform |
|---|---|---|
| Best for | Developer API for GPT, reasoning, image, audio and embedding models | Search-grounded model APIs for adding cited web answers to apps |
| Category | Models & APIs | Models & APIs |
| Pricing model | Paid | Paid |
| Starting price | See pricing page | See pricing page |
| Free plan | No | No |
| Made by | OpenAI | Perplexity |
| Based in | United States | 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 Perplexity API Platform 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
Perplexity API Platform
- Answers come with sources
- No search index to build
- Simple usage pricing
- Two-part pricing is easy to misjudge
- Less control over sources
- Costs climb with deep search
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 Perplexity API Platform if you want:
- Answers come with sources
- No search index to build
- Simple usage pricing
Watch out: two-part pricing is easy to misjudge.
OpenAI API vs Perplexity API Platform FAQ
What is the difference between OpenAI API and Perplexity API Platform?
OpenAI API: Developer API for GPT, reasoning, image, audio and embedding models. Perplexity API Platform: Search-grounded model APIs for adding cited web answers to apps. Both are models & apis tools.
Is OpenAI API or Perplexity API Platform cheaper?
OpenAI API starts at See pricing page and Perplexity API Platform starts at See pricing page. Check both pricing pages for current plans.
Do OpenAI API and Perplexity API Platform have free plans?
OpenAI API: No. Perplexity API Platform: No.
Who makes OpenAI API?
OpenAI API is made by OpenAI, based in United States.
Who makes Perplexity API Platform?
Perplexity API Platform is made by Perplexity, based in United States.
Which should I choose, OpenAI API or Perplexity API Platform?
Choose OpenAI API if you value wide model range in one api and mature sdks and docs. Choose Perplexity API Platform if you value answers come with sources and no search index to build.