Price Per TokenPrice Per Token
OpenAI
OpenAI
vs
Z-ai

ChatGPT-4o vs GLM-5 Turbo

A detailed comparison of pricing, benchmarks, and capabilities

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Key Takeaways

ChatGPT-4o wins:

  • Better at math
  • Supports vision

GLM-5 Turbo wins:

  • Cheaper input tokens
  • Cheaper output tokens
  • Larger context window
  • Higher intelligence benchmark
  • Better at coding
Price Advantage
GLM-5 Turbo
Benchmark Advantage
GLM-5 Turbo
Context Window
GLM-5 Turbo
Speed
N/A

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureChatGPT-4oGLM-5 Turbo
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyChatGPT-4oGLM-5 Turbo
LicenseProprietaryProprietary
AuthorOpenAIZ-ai
ReleasedUnknownMar 2026

ChatGPT-4o Modalities

Input
Output

GLM-5 Turbo Modalities

Input
text
Output
text

Frequently Asked Questions

GLM-5 Turbo has cheaper input pricing at $1.20/M tokens. GLM-5 Turbo has cheaper output pricing at $4.00/M tokens.
ChatGPT-4o has a 128,000 token context window, while GLM-5 Turbo has a 202,752 token context window.