Claude Opus 4.1 vs Sonar Pro (Comparative Analysis)
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Comparative Analysis: Claude Opus 4.1 vs. Sonar Pro
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Overview
Sonar Pro was released 5 months before Claude Opus 4.1.
 Claude Opus 4.1 |  Sonar Pro | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | Perplexity |
Input Context Window Maximum input tokens this model can process at once | 200K tokens | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 32K tokens | 8K tokens |
Release Date When this model first became publicly available | August 5, 2025 11 months ago August 5th, 2025 | March 7, 2025 1 year ago March 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | January 31, 2025 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude Opus 4.1 | Sonar Pro | |
|---|---|---|
Input Types Supported input formats | 🖼️Image📝Text📁File | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Claude | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation | Function CallingStructured OutputReasoning ModeContent Moderation |
Pricing
Claude Opus 4.1 is roughly 5.0x more expensive compared to Sonar Pro for input tokens and roughly 5.0x more expensive for output tokens.
| Claude Opus 4.1 | Sonar Pro | |
|---|---|---|
Input Token Cost Cost per million input tokens | $15.00 per million tokens | $3.00 per million tokens |
Output Token Cost Cost per million output tokens | $75.00 per million tokens | $15.00 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | $0.005 per search |
Cache Read Cost Cost to reuse cached input tokens | $1.50 per million tokens | Not specified |
Cache Write Cost Cost to write input tokens to the cache | $18.75 per million tokens | Not specified |
1-Hour Cache Write Cost Cost to cache input tokens for one hour | $30.00 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Claude Opus 4.1 and Sonar Pro.
| Claude Opus 4.1 | Sonar Pro | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,229 Elo (#39 in Game Dev (58.5% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes Claude Opus 4.1 and Sonar Pro unique.
Claude Opus 4.1 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Premium pricing at $15.00/M input and $75.00/M output tokens. Includes built-in content moderation for safer outputs. Released August 5th, 2025.Sonar Pro by Perplexity understands both text and images. 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 March 7th, 2025.Explore More Comparisons
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