How to use Perplexity Sonar free on Tusk Central AI
You can use Perplexity's Sonar without a Perplexity subscription. On Tusk Central AI, Sonar is free and unlimited, with Sonar Pro and Sonar Deep Research available on free monthly credits for heavier research.
Which Sonar models you get
| Model | Best for | Access |
|---|---|---|
| Sonar | Everyday research and current-information questions | Free |
| Sonar Pro | More thorough, higher-quality research answers | Credits |
| Sonar Deep Research | In-depth research across many sources | Credits |
The current lineup is on the models page.
How to start
Pick Sonar from the model selector, moving up to Sonar Pro or Deep Research when a question calls for more thorough sourcing. Not sure which model to use? Brainiac is one of the options in the picker and auto-selects for you.
What Sonar is good at
- Current-information questions — Sonar is built around live web results.
- Research where you want answers grounded in sources.
- Fact-finding and quick summaries of what's out there.
- Deeper investigations with Deep Research when one quick answer isn't enough.
Tips for better results
- Ask a real question. Sonar shines on "what's the latest on…" style prompts.
- Be specific about scope — a date range, a region, a particular angle.
- Start with free Sonar, then step up to Pro or Deep Research for the heavier work.
- Cross-check by running the same question on another model.
Do I need Perplexity Pro?
No. Sonar is free and unlimited on Tusk Central AI. Sonar Pro and Sonar Deep Research use credits — a free monthly allowance, then optional pay-as-you-go. No subscription.
Is this the same as Perplexity?
Tusk Central AI is an independent platform that gives you access to Sonar alongside models from other providers. It isn't affiliated with Perplexity.
Looking for another model? See guides for all available models.