Gemini vs Z.ai (GLM) comparison

By starting price alone, Gemini is $13.01 cheaper. But price is not everything, so check the highlighted rows in the table below.

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

CurrencyUSDKRWEUR

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

Highlighted rows are where they differ.

ItemGeminiVisit siteZ.ai (GLM)Visit site
Starting price≈€4.45+ ($4.99)Official USD price≈€16.05+ ($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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