DeepSeek V4 Flash 0423 vs Sonar (Comparative Analysis)
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Comparative Analysis: DeepSeek V4 Flash 0423 vs. Sonar
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Overview
Sonar was released 1 year before DeepSeek V4 Flash 0423.
 DeepSeek V4 Flash 0423 |  Sonar | |
|---|---|---|
Model Provider The organization behind this AI's development | DeepSeek | Perplexity |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 127.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 393.2K tokens | Not specified tokens |
Release Date When this model first became publicly available | April 24, 2026 3 months ago April 24th, 2026 | January 27, 2025 1 year ago January 27th, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
DeepSeek V4 Flash 0423 | Sonar | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | OptionalEffort: Extra High, HighDefault: High | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | DeepSeek | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | Function CallingStructured OutputReasoning ModeContent Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
DeepSeek V4 Flash 0423 is roughly 0.1x less expensive compared to Sonar for input tokens and roughly 0.3x less expensive for output tokens.
| DeepSeek V4 Flash 0423 | Sonar | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.14 per million tokens | $1.00 per million tokens |
Output Token Cost Cost per million output tokens | $0.28 per million tokens | $1.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.005 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.03 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between DeepSeek V4 Flash 0423 and Sonar.
| DeepSeek V4 Flash 0423 | Sonar | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,242 Elo (#37 in 3D (49.3% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes DeepSeek V4 Flash 0423 and Sonar unique.
DeepSeek V4 Flash 0423 by DeepSeek can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.14/M input and $0.28/M output tokens. Released April 24th, 2026.Sonar by Perplexity understands both text and images. It can handle standard conversations with its 127.1K token context window. Reasonably priced at $1.00/M input and $1.00/M output tokens. Released January 27th, 2025.Explore More Comparisons
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Compare Sonar with:
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