Hermes 3 405B Instruct vs Sonar Pro Search (Comparative Analysis)
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Comparative Analysis: Hermes 3 405B Instruct vs. Sonar Pro Search
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Overview
Hermes 3 405B Instruct was released 1 year before Sonar Pro Search.
 Hermes 3 405B Instruct |  Sonar Pro Search | |
|---|---|---|
Model Provider The organization behind this AI's development | Nous | Perplexity |
Input Context Window Maximum input tokens this model can process at once | 131.1K tokens | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 16.4K tokens | 8K tokens |
Release Date When this model first became publicly available | August 16, 2024 1 year ago August 16th, 2024 | October 30, 2025 8 months ago October 30th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | December 31, 2023 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Hermes 3 405B Instruct | Sonar Pro Search | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Not reported | Always enabled |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Llama3 | Other |
Key Features Advanced capabilities | Function Calling✓Structured OutputReasoning ModeContent Moderation | Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
Hermes 3 405B Instruct is roughly 0.3x less expensive compared to Sonar Pro Search for input tokens and roughly 0.07x less expensive for output tokens.
| Hermes 3 405B Instruct | Sonar Pro Search | |
|---|---|---|
Input Token Cost Cost per million input tokens | $1.00 per million tokens | $3.00 per million tokens |
Output Token Cost Cost per million output tokens | $1.00 per million tokens | $15.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.018 per search |
At a Glance
Quick overview of what makes Hermes 3 405B Instruct and Sonar Pro Search unique.
Hermes 3 405B Instruct by Nous generates structured data. It can handle standard conversations with its 131.1K token context window. Reasonably priced at $1.00/M input and $1.00/M output tokens. Released August 16th, 2024.Sonar Pro Search by Perplexity understands both text and images, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Premium pricing at $3.00/M input and $15.00/M output tokens. Released October 30th, 2025.Explore More Comparisons
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