GPT-4o Search Preview vs Sonar Deep Research (Comparative Analysis)
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Comparative Analysis: GPT-4o Search Preview vs. Sonar Deep Research
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Overview
Sonar Deep Research was released 5 days before GPT-4o Search Preview.
 GPT-4o Search Preview |  Sonar Deep Research | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | Perplexity |
Input Context Window Maximum input tokens this model can process at once | 128K tokens | 128K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 16.4K tokens | Not specified tokens |
Release Date When this model first became publicly available | March 12, 2025 1 year ago March 12th, 2025 | March 7, 2025 1 year ago March 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | October 31, 2023 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GPT-4o Search Preview | Sonar Deep Research | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text |
Reasoning Controls Defaults and configurable reasoning effort | Not reported | Optional |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | Other |
Key Features Advanced capabilities | Function Calling✓Structured OutputReasoning Mode✓Content Moderation | Function CallingStructured Output✓Reasoning ModeContent Moderation |
Pricing
GPT-4o Search Preview is roughly 1.3x more expensive compared to Sonar Deep Research for input tokens and roughly 1.3x more expensive for output tokens.
| GPT-4o Search Preview | Sonar Deep Research | |
|---|---|---|
Input Token Cost Cost per million input tokens | $2.50 per million tokens | $2.00 per million tokens |
Output Token Cost Cost per million output tokens | $10.00 per million tokens | $8.00 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.035 per search | $0.005 per search |
Reasoning Token Cost Cost for internal reasoning tokens | Not specified | $3.00 per million tokens |
At a Glance
Quick overview of what makes GPT-4o Search Preview and Sonar Deep Research unique.
GPT-4o Search Preview by OpenAI generates structured data. It can handle standard conversations with its 128K token context window. Reasonably priced at $2.50/M input and $10.00/M output tokens. Includes built-in content moderation for safer outputs. Released March 12th, 2025.Sonar Deep Research by Perplexity offers advanced reasoning. It can handle standard conversations with its 128K token context window. Reasonably priced at $2.00/M input and $8.00/M output tokens. Released March 7th, 2025.Explore More Comparisons
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