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OpenAIGPT-5.4 ProVSZ.ai (Zhipu AI)GLM-4.6

Analysis by:the whichllmmodel Editorial Team|Updated: June 2026

Our Take

Standardized reasoning and coding benchmarks are currently pending verification for one or both of these models. We recommend testing GPT-5.4 Pro and GLM-4.6 directly in their respective provider playgrounds to see which fits your specific prompt styles best.
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Model Specs

GPT-5.4 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A

complex codebases, multi-file repositories, and architectural planning

Reasoning (gpqa-diamond)
67.6%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)7.3x cheaper
$0.14Input: $0.05 | Output: $0.40
Context WindowLarger
400k tokens
Model Specs

GLM-4.6

Open SourceAPI Available

Benchmarks & Scores

Coding (swe-bench-verified)
68%

multi-file code and clearly defined tasks

Reasoning (gpqa-diamond)Winner (+15.3%)
82.9%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)
$1.00Input: $0.60 | Output: $2.20
Context Window
202.75k tokens

Frequently Asked Questions about GPT-5.4 Pro vs GLM-4.6

GPT-5.4 Pro is cheaper than GLM-4.6. GPT-5.4 Pro has a blended cost of $0.14/1M tokens, which is about 7.3x cheaper than GLM-4.6 at $1.00/1M tokens.

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