token.app › Compare › GPT-4 Turbo Preview vs GLM 5.2

GPT-4 Turbo Preview vs GLM 5.2

GLM 5.2 is 39× cheaper per token on a blended 3:1 basis. GLM 5.2 accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
GPT-4 Turbo PreviewGLM 5.2
ProviderOpenAIZhipu AI
Input $/1M$10.00$0.252
Output $/1M$30.00$0.792
Blended $/1M$15.00$0.387
Context window128K1.0M
Max output4K128K
ReleasedJan 2024Jun 2026
LicenceProprietaryOpen weights
Choose GPT-4 Turbo Preview if…
  • No clear advantage on the data we hold.
Choose GLM 5.2 if…
  • Costs less per token — $0.387 vs $15.00 blended
  • Larger context window (1.0M)
  • Open weights — self-hostable
  • Newer model (released Jun 2026)
FAQ
Which is better, GPT-4 Turbo Preview or GLM 5.2?
We do not hold independently-run benchmark scores covering both GPT-4 Turbo Preview and GLM 5.2, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-4 Turbo Preview cheaper than GLM 5.2?
GLM 5.2 is cheaper: $0.387 versus $15.00 per million tokens blended at 3:1 input:output. Input alone: $10.00 vs $0.252. Output alone: $30.00 vs $0.792.
What context windows do GPT-4 Turbo Preview and GLM 5.2 have?
GPT-4 Turbo Preview: 128,000 tokens. GLM 5.2: 1,048,576 tokens.
Who makes GPT-4 Turbo Preview and GLM 5.2?
GPT-4 Turbo Preview is made by OpenAI. GLM 5.2 is made by Zhipu AI.
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