LLMversus

GPT-4o vs Claude Sonnet 4: Pricing, Benchmarks & Verdict (2026)

Pricing verified Sep 14, 2026By LLMversusUpdated September 17, 2026View methodology

⚡ Quick Answer

Compare GPT-4o and Claude Sonnet 4 across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGPT-4oClaude Sonnet 4
ProviderOpenAIAnthropic
Input Price / 1M tokens$2.50$2.00
Output Price / 1M tokens$10.00$10.00
Context Window
128K
200K
Max Output Tokens
16,384
64,000
Arena ELO
1,162
1,473
Coding ELO
1,162
1,473
TTFT (ms)
230
320
Tokens/sec
95
78
MultimodalYesYes
JSON ModeYesYes
Function CallingYesYes
VisionYesYes
When to Use GPT-4o

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

Strengths:

  • Fast response times
  • Strong multimodal capabilities
  • Code execution support

Best for:

general-purposemultimodalfunction-calling
When to Use Claude Sonnet 4

Claude Sonnet 4 excels at coding, analysis, long-context, agents tasks.

Strengths:

  • Best-in-class coding performance
  • 200K context window
  • Excellent instruction following

Best for:

codinganalysislong-contextagents

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