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ChatGPT-4o Latest vs Sonar Pro: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare ChatGPT-4o Latest and Sonar Pro across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureChatGPT-4o LatestSonar Pro
ProviderOpenAIPerplexity
Input Price / 1M tokens$5.00$3.00
Output Price / 1M tokens$15.00$15.00
Context Window
128K
200K
Max Output Tokens
16,384
8,192
Arena ELO
1,265
1,200
Coding ELO
1,270
1,195
TTFT (ms)
150
150
Tokens/sec
100
100
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use ChatGPT-4o Latest

ChatGPT-4o Latest excels at general-purpose, multimodal, function-calling tasks.

Strengths:

  • Latest GPT-4o
  • Improved performance
  • Always updated

Best for:

general-purposemultimodalfunction-calling
When to Use Sonar Pro

Sonar Pro excels at web-search, general-purpose, reasoning tasks.

Strengths:

  • Built-in web search
  • Fresh information
  • Long context

Best for:

web-searchgeneral-purposereasoning

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