Which is better for coding — GLM-4.5 or GPT-5.4 Pro?

Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.

Which model is cheaper — GLM-4.5 or GPT-5.4 Pro?

GLM-4.5 is cheaper for input: $0.60 per 1M tokens vs $15.00.

Which has a larger context window — GLM-4.5 or GPT-5.4 Pro?

GPT-5.4 Pro supports a larger context: 1,000,000 tokens vs 131,072.

GLM-4.5 vs GPT-5.4 Pro: Specs & Benchmark Comparison

Characteristic	GLM-4.5	GPT-5.4 Pro
Company	Zhipu AI	OpenAI
Release Date	July 27, 2025	March 1, 2026
Parameters	355B	—
Multimodal	No	Yes
Context (input)	131K	1.0M
Context (output)	98K	128K
Input Price / 1M	$0.60	$15.00
Output Price / 1M	$2.20	$225.00
Average Score	0.8	0.0

Verdict

GPT-5.4 Pro leads in 2 out of 3 comparison categories.

API Cost

GLM-4.5 is 85.7x cheaper: input $0.60/1M vs $15.00/1M tokens.

Context Window

GPT-5.4 Pro supports a larger context: 1M vs 131K tokens.

Recency

GPT-5.4 Pro is newer: released 3/1/2026 vs 7/27/2025.

More About These Models

GLM-4.5

Zhipu AI — specs, benchmarks, API

GPT-5.4 Pro

OpenAI — specs, benchmarks, API

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The GLM-4.5 and GPT-5.4 Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GLM-4.5 or GPT-5.4 Pro page. See also the complete list of AI model comparisons.