OpenAIGPT-5.4VSZ.ai (Zhipu AI)GLM-4.5
Our Take
We recommend GPT-5.4 if you need peak intelligence for complex complex codebases, multi-file repositories, and architectural planning, or the 5.6x cheaper GLM-4.5 if your workflow is limited to multi-file code and clearly defined tasks. While GPT-5.4 holds a major reasoning advantage, GLM-4.5 is optimized for high-volume budget pipelines. Choose GPT-5.4 for architectural codebase planning, or GLM-4.5 to maximize your budget for basic scripts.
▶WHY?
Benchmark Calculations & Evidence:
Coding Evaluation: GPT-5.4 was evaluated on SWE-bench Pro (scoring 57.7%), while GLM-4.5 was evaluated on SWE-bench Verified (scoring 64.2%).
Reasoning Accuracy: Both models were evaluated on the GPQA Diamond benchmark. GPT-5.4 scored 92.8%, while GLM-4.5 scored 79.9%.
Cost Efficiency: GLM-4.5 pricing ($0.6/M input, $2.2/M output) is 5.6x cheaper than GPT-5.4 ($2.5/M input, $15/M output).
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Benchmarks & Scores
Coding (swe-bench-pro)
57.7%complex codebases, multi-file repositories, and architectural planning
Reasoning (gpqa-diamond)Winner (+12.9%)
92.8%graduate-level science QA
Cost & Context
Cost (per 1M tokens)
$5.63Input: $2.50 | Output: $15.00Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-verified)
64.2%multi-file code and clearly defined tasks
Reasoning (gpqa-diamond)
79.9%graduate-level science QA
Cost & Context
Cost (per 1M tokens)5.6x cheaper
$1.00Input: $0.60 | Output: $2.20Context Window
131.07k tokensFrequently Asked Questions about GPT-5.4 vs GLM-4.5
GLM-4.5 is cheaper than GPT-5.4. GLM-4.5 has a blended cost of $1.00/1M tokens, which is about 5.6x cheaper than GPT-5.4 at $5.63/1M tokens.
For coding tasks, GPT-5.4 scores 57.7% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning), while GLM-4.5 scores 64.2% on swe-bench-verified (multi-file code and clearly defined tasks).
Related Matchups
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