OpenAI: GPT-5.1 Chat vs Perplexity: Sonar Pro
Side-by-side comparison of OpenAI: GPT-5.1 Chat and Perplexity: Sonar Pro. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
strong confidenceOpenAI: GPT-5.1 Chat leads overall
OpenAI: GPT-5.1 Chat leads in price and capabilities and max output, making it the stronger choice for most workflows. Perplexity: Sonar Pro remains competitive with advantages in context window.
Best for with OpenAI: GPT-5.1 Chat
Best for with Perplexity: Sonar Pro
Side-by-side
Technical specifications
| OpenAI: GPT-5.1 Chat | Perplexity: Sonar Pro | |
|---|---|---|
| Provider | OpenAI | Perplexity |
| Input price | $1/M | $3/M |
| Output price | $10/M | $15/M |
| Context window | 128K | 200K |
| Max output | 16K | 8K |
| Capabilities | Tool useVision | Vision |
| Released | Nov 13, 2025 | Mar 6, 2025 |
Scoring breakdown
How each dimension compares
Price
OpenAI: GPT-5.1 Chat leadsOpenAI: GPT-5.1 Chat
$10/M tokens
Perplexity: Sonar Pro
$15/M tokens
Context Window
Perplexity: Sonar Pro leadsOpenAI: GPT-5.1 Chat
128K tokens
Perplexity: Sonar Pro
200K tokens
Capabilities
OpenAI: GPT-5.1 Chat leadsOpenAI: GPT-5.1 Chat
2/4
Perplexity: Sonar Pro
1/4
Max Output
OpenAI: GPT-5.1 Chat leadsOpenAI: GPT-5.1 Chat
16K tokens
Perplexity: Sonar Pro
8K tokens
Recency
OpenAI: GPT-5.1 Chat
Nov 2025
Perplexity: Sonar Pro
Mar 2025
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