Gemini vs Z.ai (GLM) comparison

By starting price alone, Gemini is $13.01 cheaper. But price is not everything, so see below what differs.

Gemini and Z.ai (GLM) compared side by side in AI.

CurrencyUSDKRWEUR

What is different

Starting price

Gemini$4.99+
Z.ai (GLM)$18+

Korean support

GeminiGood
Z.ai (GLM)Limited

Gemini

Google's AI assistant. Connects directly to Google services such as Gmail, Drive and YouTube

What is good

  • Strong integration with Google services
  • Good with long documents and video (up to 1M context)
  • Can start with the cheap AI Plus ($4.99)

What could be better

  • Fewer advantages outside the Google ecosystem
  • Features are split up in a complicated way across plans

Gemini official site

Z.ai (GLM)

The GLM model service from China's Z.ai (formerly Zhipu AI). In August 2026 it released GLM-5.3, strong at coding and agents, with open weights, making it a leading open model

What is good

  • Top-tier open coding model with released weights
  • Coding Plan works in 20+ tools including Claude Code, Codex, OpenCode and Cline
  • Off-peak usage is deducted at 50%

What could be better

  • Officially supported languages are mainly English and Chinese (no official Korean materials)
  • GLM-5.3 uses its own license that adds a security review condition for MaaS companies with revenue over $10 billion

Z.ai (GLM) official site

At a glance

ItemGeminiVisit siteZ.ai (GLM)Visit site
Starting price$4.99+Official USD price$18+Official USD price
Free tierFree plan availableFree plan available
Korean supportGoodLimited
Main models
  • Gemini 4 Argon
  • Gemini 3.8 Flash
  • Gemini 3.1 Pro
  • Gemini 3 Deep Think
  • Nano Banana 2/Pro (image)
  • Gemini Omni/Veo 3.1 (video)
  • GLM-5.3 (about 753B)
  • GLM-5.3-Flash (about 321B)
  • GLM-5.3-FlashX
  • GLM-5.2
  • GLM-4.6V (vision)
  • Free API: GLM-4.7-Flash/GLM-4.5-Flash
TypeAI servicesAI services
CategoryChatbot/Assistant, Search, Image GenerationOpen Models, Coding, Developer API
CompanyGoogle, United StatesZ.ai (formerly Zhipu AI), China
Plans
  • Free
  • AI Plus $4.99
  • AI Pro $19.99
  • AI Ultra $99.99 (5x), $199.99 (20x)
  • Enterprise from $21
  • Web chat chat.z.ai (whether free needs checking)
  • GLM Coding Plan from $18/mo (Lite, Pro/Max prices unverified)
  • API pay-as-you-go (per 1 million tokens): GLM-5.3 input $1.40
  • output $4.40, GLM-5.3-Flash $0.15/$0.50, GLM-5.3-FlashX $0.37/$1.25
  • Weights released free
Pros
  • Strong integration with Google services
  • Good with long documents and video (up to 1M context)
  • Can start with the cheap AI Plus ($4.99)
  • Top-tier open coding model with released weights
  • Coding Plan works in 20+ tools including Claude Code, Codex, OpenCode and Cline
  • Off-peak usage is deducted at 50%
  • The Flash-series API is cheap and some free models are offered
Cons
  • Fewer advantages outside the Google ecosystem
  • Features are split up in a complicated way across plans
  • Officially supported languages are mainly English and Chinese (no official Korean materials)
  • GLM-5.3 uses its own license that adds a security review condition for MaaS companies with revenue over $10 billion
  • Coding Plan Pro and Max prices are not in the public documents
  • It is a Chinese company's service, so the data policy needs checking

Prices and benefits may change. Check the official site before you pay.

Prices converted at 1 USD = ₩1,327.84 (2026-10-20). Original price shown in brackets. Taxes as listed by each provider.

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