GLM 5.2 vs GPT 5 Codex
Z.ai's frontier reasoning model for long-context agents and software engineering.
GPT-5 optimized for code generation and software engineering tasks.
No captured outputs for these models yet.
Frequently Asked Questions: GLM 5.2 vs GPT 5 Codex▼
Which is better, GLM 5.2 or GPT 5 Codex?
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Both GLM 5.2 and GPT 5 Codex are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
Which is cheaper, GLM 5.2 or GPT 5 Codex?
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GLM 5.2 has a lower blended cost. GLM 5.2: $1.40 input / $4.40 output. GPT 5 Codex: $1.25 input / $10.00 output.
Which has a larger context window, GLM 5.2 or GPT 5 Codex?
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GPT 5 Codex has a larger context window: GLM 5.2 supports 262K tokens vs GPT 5 Codex at 400K tokens.
Do both GLM 5.2 and GPT 5 Codex support vision?
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GPT 5 Codex supports vision/image input, but GLM 5.2 does not.
What are the key differences between GLM 5.2 and GPT 5 Codex?
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Key differences: only GPT 5 Codex supports vision input. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both GLM 5.2 and GPT 5 Codex for free on idapt.app to see which performs better for your specific needs.