Last refreshed 2026-05-15. Next refresh: weekly.
Why use Sonar Reasoning Pro on OpenRouter?
OpenRouter offers Sonar Reasoning Pro with pay-as-you-go pricing at $2.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Sonar Reasoning Pro across 3 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: perplexity/sonar-reasoning-properplexity/sonar-reasoning-proRequest example
perplexity/sonar-reasoning-pro.Gotchas
- Use provider model ID "perplexity/sonar-reasoning-pro", not the LLMReference slug "sonar-reasoning-pro".
Compare Sonar Reasoning Pro Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenRouter | $2.00 | $8.00 |
| Perplexity Labs | $2.00 | $8.00 |
| Vercel AI Gateway | — | — |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $2.00 |
| Output tokens | $8.00 |
Capabilities
About Sonar Reasoning Pro
Perplexity's Chain-of-Thought reasoning search model. Replaced sonar-reasoning (deprecated December 2025). Request fees: $6-$14/1K requests (Low/Medium/High).
FAQ
What does Sonar Reasoning Pro cost on OpenRouter?
On OpenRouter, Sonar Reasoning Pro costs $2 per 1M input tokens and $8 per 1M output tokens.
What is the context window for Sonar Reasoning Pro on OpenRouter?
Sonar Reasoning Pro supports a 128k token context window on OpenRouter.
How does OpenRouter compare to other Sonar Reasoning Pro providers?
Sonar Reasoning Pro is available from 3 providers. The cheapest input pricing is $2/1M tokens from OpenRouter.
What API model ID do I use for Sonar Reasoning Pro on OpenRouter?
Use the model ID perplexity/sonar-reasoning-pro when calling OpenRouter's API.
Who created Sonar Reasoning Pro?
Sonar Reasoning Pro was created by Perplexity Labs as part of the Sonar model family.
Is Sonar Reasoning Pro open source?
Sonar Reasoning Pro is not open source; the seed data lists it as proprietary.