Price Per TokenPrice Per Token
OpenAI
OpenAI
vs
Xai
Xai

ChatGPT-4o vs Grok 4

A detailed comparison of pricing, benchmarks, and capabilities

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Key Takeaways

ChatGPT-4o wins:

  • No clear advantages in compared metrics

Grok 4 wins:

  • Cheaper input tokens
  • Larger context window
  • Higher intelligence benchmark
  • Better at coding
  • Better at math
  • Has reasoning mode
Price Advantage
Grok 4
Benchmark Advantage
Grok 4
Context Window
Grok 4
Speed
N/A

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureChatGPT-4oGrok 4
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyChatGPT-4oGrok 4
LicenseProprietaryProprietary
AuthorOpenAIXai
ReleasedUnknownJul 2025

ChatGPT-4o Modalities

Input
Output

Grok 4 Modalities

Input
imagetext
Output
text

Frequently Asked Questions

Grok 4 has cheaper input pricing at $3.00/M tokens. ChatGPT-4o has cheaper output pricing at $15.00/M tokens.
ChatGPT-4o has a 128,000 token context window, while Grok 4 has a 256,000 token context window.
ChatGPT-4o supports vision. Grok 4 supports vision.