Anthropic: Claude Sonnet 4.5 vs Perplexity: Sonar Pro
Side-by-side comparison of Anthropic: Claude Sonnet 4.5 and Perplexity: Sonar Pro. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
strong confidenceAnthropic: Claude Sonnet 4.5 leads overall
Anthropic: Claude Sonnet 4.5 leads in context window and capabilities and max output, making it the stronger choice for most workflows. Perplexity: Sonar Pro remains a solid alternative depending on your specific needs.
Best for with Anthropic: Claude Sonnet 4.5
Best for with Perplexity: Sonar Pro
Side-by-side
Technical specifications
| Anthropic: Claude Sonnet 4.5 | Perplexity: Sonar Pro | |
|---|---|---|
| Provider | Anthropic | Perplexity |
| Input price | $3/M | $3/M |
| Output price | $15/M | $15/M |
| Context window | 1.0M | 200K |
| Max output | 64K | 8K |
| Capabilities | Tool useVisionReasoning | Vision |
| Released | Sep 29, 2025 | Mar 7, 2025 |
Scoring breakdown
How each dimension compares
Price
Anthropic: Claude Sonnet 4.5
$15/M tokens
Perplexity: Sonar Pro
$15/M tokens
Context Window
Anthropic: Claude Sonnet 4.5 leadsAnthropic: Claude Sonnet 4.5
1.0M tokens
Perplexity: Sonar Pro
200K tokens
Capabilities
Anthropic: Claude Sonnet 4.5 leadsAnthropic: Claude Sonnet 4.5
3/4
Perplexity: Sonar Pro
1/4
Max Output
Anthropic: Claude Sonnet 4.5 leadsAnthropic: Claude Sonnet 4.5
64K tokens
Perplexity: Sonar Pro
8K tokens
Recency
Anthropic: Claude Sonnet 4.5
Sep 2025
Perplexity: Sonar Pro
Mar 2025
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