GPT-5.4 vs Z.ai: GLM 5, API pricing and model comparison

Compare GPT-5.4 vs Z.ai: GLM 5 side by side by input/output token price, context window, benchmark signals, capabilities, and example monthly API cost.

Quick comparison summary

This page compares GPT-5.4 vs Z.ai: GLM 5 in one matrix. Current records: GPT-5.4 on OpenRouter: $2.5/$15 per 1M tokens, 1050K context window; Z.ai: GLM 5 on OpenRouter: $0.6/$2.08 per 1M tokens, 203K context window. Prices are estimates—verify official provider pages before production use.

GPT-5.4

openai/gpt-5.4

OpenRouter

Input: $2.50 / 1M
Output: $15.00 / 1M
Context: 1.1m
Model page: Details

GLM 5

z-ai/glm-5

OpenRouter

Input: $0.6000 / 1M
Output: $2.08 / 1M
Context: 202.8k
Model page: Details

Comparison matrixLLM Table

Models to compare2/4

Model 1

1.1M

Select model344 models

Model 2

202.8K

Select model344 models

OpenAI: GPT-5.4

OpenRouter

Input

$2.50 / 1M

Output

$15.00 / 1M

Context

1.1MLargest context

Monthly cost

$700.00

Benchmark

1,480Top benchmarkLMArena Text Arena

VisionToolsJSONReasoningLong context

Z.ai: GLM 5

OpenRouter

Cheapest (this scenario)

Input

$0.6000 / 1M

Output

$2.08 / 1M

Context

202.8K

Monthly cost

$122.40

Benchmark

1,457LMArena Text Arena

ToolsJSONReasoningLong context

OpenAI: GPT-5.4

OpenRouter

Z.ai: GLM 5

OpenRouter

Input

$2.50 / 1M

$0.6000 / 1MCheapest (this scenario)

Output

$15.00 / 1M

$2.08 / 1MCheapest (this scenario)

Context

1.1MLargest context

202.8K

Benchmark

1,480Top benchmark

LMArena Text Arena

1,457

LMArena Text Arena

Monthly cost

$700.00

$122.40Cheapest (this scenario)

Capabilities

VisionToolsJSONReasoningLong context

ToolsJSONReasoningLong context

FAQ

Model comparison notes

How do GPT-5.4 vs Z.ai: GLM 5 API prices compare?

Compare input and output prices per 1M tokens side by side. The same underlying model can list different prices by route (Direct API vs OpenRouter); this table uses the selected route records.

Which model looks cheaper?

Scenario cost depends on your input/output mix. The example monthly cost in the table uses default token volumes—adjust with the cost calculator for your traffic.

Are benchmark scores included?

Independent or provider-reported benchmark signals appear when available. Benchmarks do not replace price analysis—evaluate both for your quality requirements.

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