Perplexity Sonar Reasoning
Web-grounded reasoning model for multi-step research and cited answers
Model facts
- Context window
- 127K tokens
- Maximum output
- 4K tokens
- Cheapest paid input
- $1 per 1M tokens
- Cheapest paid output
- $5 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, temperature control, text.
Observed price history
- 2026-08-24: $1 input / $5 output per 1M tokens
API providers
- Helicone — model id sonar-reasoning; $1 input / $5 output per 1M tokens; provider documentation