GPT-4o (Omni) vs Sonar Pro Search
Compare GPT-4o (Omni) by OpenAI against Sonar Pro Search by Perplexity, context windows of 128K vs 200K, tested across 53 shared challenges. Updated May 2026.
Which is better, GPT-4o (Omni) or Sonar Pro Search?
GPT-4o (Omni) and Sonar Pro Search are both competitive models. GPT-4o (Omni) costs $2.5/M input tokens vs $3/M for Sonar Pro Search. Context windows: 128K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o (Omni) and Sonar Pro Search
GPT-4o (Omni) is made by openai while Sonar Pro Search is from perplexity. GPT-4o (Omni) has a 128K token context window compared to Sonar Pro Search's 200K. On pricing, GPT-4o (Omni) costs $2.5/M input tokens vs $3/M for Sonar Pro Search.
Per 1M tokens
GPT-4o (Omni) is cheaper on both — 1.2× input, 1.5× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Style Comparison
GPT-4o (Omni) uses 2.5x more emoji
