vsTPerplexity API vs Together AI
Comparing two ai & llm apis platforms on pricing, features, free tier, and trade-offs.
Quick summary
Perplexity API — LLM with live web search built in. Perplexity API (Sonar) gives LLM answers grounded in real-time web search results, with citations. Great for up-to-date answers and research use cases.
Together AI — Run open-source AI models in production. Together AI hosts 200+ open-source models (Llama, Mixtral, Qwen, DeepSeek, Flux) with competitive pricing, fine-tuning, and dedicated endpoints.
Feature comparison
| Feature | Perplexity API | Together AI |
|---|---|---|
| Pricing model | Paid | Freemium |
| Starting price | Pay per token | Pay per token |
| Free tier | No | Yes |
| Open source | No | No |
| Vision | No | Yes |
| Streaming | Yes | Yes |
| Embeddings | No | Yes |
| Max Output | 4K | 8K |
| Fine-tuning | No | Yes |
| Context Window | 200K | 128K |
| Flagship Model | Sonar Large | Llama 3.3 405B |
| Reasoning Model | Sonar Reasoning | DeepSeek R1 |
| Function Calling | No | Yes |
| EU Data Residency | No | No |
Perplexity API
LLM with live web search built in
Pros
- Built-in real-time web search
- Citations with every answer
- Always up-to-date information
- No need for your own scraper
Cons
- No vision / function calling
- More expensive than raw LLM APIs
- Less control over grounding data
T
Together AI
Run open-source AI models in production
Pros
- 200+ open-source models one API
- Fine-tuning infrastructure built in
- Dedicated endpoints for SLA workloads
- Image generation (Flux) too
Cons
- No proprietary frontier model
- Pricing varies wildly per model
- Documentation sometimes out-of-sync
Which should you choose?
Choose Perplexity API if you need production-grade features and are ready to pay. Choose Together AI if a free tier is important for your stage.
Frequently asked questions
Which is better, Perplexity API or Together AI?
There is no universal “better.” For most teams, Together AI is the safer default because Together AI offers a free tier, while Perplexity API requires a paid plan. For edge cases, the comparison table above highlights where each tool wins.
Is Perplexity API cheaper than Together AI?
Perplexity API starts at Pay per token, while Together AI starts at Pay per token. Exact costs depend on usage — check both vendors' calculators before committing.
Can I migrate from Perplexity API to Together AI?
Migration difficulty depends on how deeply Perplexity API-specific features (APIs, SDK conventions, data schemas) are baked into your app. Most ai & llm apis migrations take days to weeks. Both vendors typically publish migration guides — check their docs.
Is Perplexity API or Together AI open source?
No — both Perplexity API and Together AI are proprietary managed services. If open source is a requirement, see our alternatives pages.
Does Perplexity API or Together AI have a free tier?
Together AI has a free tier; Perplexity API does not.
Which is best for startups and indie hackers?
Startups usually optimize for the lowest friction to ship and the cheapest possible free tier. The one with the most generous free tier here is Together AI. For production workloads, revisit the trade-offs in the feature table above.