Sonar Reasoning Pro: API pricing, providers and specs
Sonar Reasoning Pro is a text model by Perplexity. 4 providers serve it, from $8 to $8 /1M; the lowest price is at FastRouter.
How Sonar Reasoning Pro compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $8 /1M, its lowest price is above 83% of comparable models (median $1.10).
- Its 128K-token context window is larger than 12% of them (median 262K), about 190 pages of text.
- 4 providers serve it; 60% of comparable models have fewer.
Sonar Reasoning Pro prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
 Helicone | $2/1M | From$8/1M | — | — |
| OpenRouter | $2/1M | From$8/1M | — | 128K |
 Requesty | $2/1M | From$8/1M | $2/1M | 131K |
 FastRouter | $2/1M | $8/1M | — | 128K |
- FastRouter$8
- HeliconeFrom$8
- OpenRouterFrom$8
- RequestyFrom$8
Specs
- Type
- Text
- Maker
- Perplexity
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 128K≈ 190 pages of text
- Max output
- 115K
- Capabilities
- Reasoning, Vision
- Released
- Mar 7, 2025
- License
- proprietary
- Open weights
- No, API only
Alternatives to Sonar Reasoning Pro
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Sonar Reasoning Prothis model | $8/1M | 128K | — | 4 |
 Gemini 4 Argon | $8/1M | 1.05M | 1673 | 26 |
| Kimi K3 | $8.28/1M | 1.05M | 1655 | 47 |
 Muse Wonder | $16/1M | 1.05M | — | 14 |
| Claude Opus 5.5 | $16/1M | 1M | 1807 | 33 |
| GPT-6.1 Sol | $8/1M | 1.05M | 1749 | 27 |
| GPT-6 Sol | $8/1M | 1.05M | 1682 | 28 |
 Qwen3.8 2.4T A95B | $4.11/1M | 1M | — | 22 |
| Grok 4.7 | $4.80/1M | 500K | 1637 | 28 |
More from Perplexity
Sonar Reasoning Pro FAQ
The lowest price for Sonar Reasoning Pro is $8 /1M, at FastRouter.
FastRouter, at $8 /1M. 4 providers serve Sonar Reasoning Pro; the table above lists every one with its price.
Sonar Reasoning Pro reads up to 128K tokens per request and writes up to 115K.
No. Sonar Reasoning Pro is only available through an API; Perplexity does not publish its weights.
4 API providers serve Sonar Reasoning Pro. Compare their prices above, or open a provider to see everything it offers.
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