Overview
DeepSeek V4 Flash 0423 vs Sonar Reasoning Pro: side-by-side summary
DeepSeek V4 Flash 0423 and Sonar Reasoning Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
DeepSeek V4 Flash 0423, from DeepSeek, has a 1,048,576-token context window and is priced at $0.06/M tokens input, $0.14/M tokens output on OpenRouter.
Sonar Reasoning Pro, from Perplexity, has a 128,000-token context window and is priced at $2/M tokens input, $8/M tokens output on OpenRouter.
- Context window
- DeepSeek V4 Flash 0423: 1,048,576 tokens
- Sonar Reasoning Pro: 128,000 tokens
- Price
- DeepSeek V4 Flash 0423: $0.06/M tokens input, $0.14/M tokens output
- Sonar Reasoning Pro: $2/M tokens input, $8/M tokens output
- Provided by
- DeepSeek V4 Flash 0423: DeepSeek
- Sonar Reasoning Pro: Perplexity