Skip to content

Side-by-side comparison · AI Assistants & LLMs

Claude vs Google Gemini vs Z.ai

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Best overall

Claude

4.6

From $20/mo

Google Gemini

4.2

From US$4.99/mo

Z.ai

3.5

From $18/mo or $12.60/mo

Comparing 3 tools, the maximum.

At a glance

Best overallBest valueEasiest to use

Pick it if: Anyone who writes, researches or makes decisions for a living, plus anyone curious about Claude Code.

Pick it if: People whose work already runs on Gmail, Google Workspace or an Android phone.

Z.ai3.5

Pick it if: Developers who want a cheaper engine for Claude Code and similar tools, and anyone who wants free access to a top open model.

Overview

AttributeClaudeGoogle GeminiZ.ai
In one lineAnthropic's chat assistant, at its best on careful writing and long documents.Google's assistant, built into Gmail, Docs, Drive and Android phones.Free chat with Zhipu's open GLM models, plus a cheap coding plan for Claude Code users.
Pricing modelFreemiumFreemiumFreemium
Starting price$20/moUS$4.99/mo$18/mo or $12.60/mo
Free plan Yes Yes Yes
Works with Claude Code Yes No No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeClaudeGoogle GeminiZ.ai
Overall rating4.6Winner4.23.5
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.0
3.5
FeaturesHow completely it covers the job it's built for, and how well the pieces fit together.
4.5
4.5
3.5
Output qualityHow good the results are before you fix them.
5.0
4.0
4.0
Value for moneyWhat you get for the price, including the free plan.
4.5
4.0
3.5
Speed & reliabilityHow fast it is and how often it falls over.
4.5
4.5
3.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeClaudeGoogle GeminiZ.ai
Access & platform
Free plan Yes Yes Yes
Mobile app Yes Yes No
Desktop app Yes Yes No
Browser extension Yes Yes No
API access Yes Yes Yes
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes No
Connects to other apps Yes Yes No
Open source or self-hosted No No Yes
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images No Yes No
Makes video No Yes No
Writes code Yes Yes Yes
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes Yes No
Works in many languages Yes Yes Yes
Capabilities score14/ 1716/ 179/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeClaudeGoogle GeminiZ.ai
Plans

Free

Free

Trying it out and light daily use.

Free

Free

Light use and seeing how it feels.

Chat

Free

Anyone who wants to try GLM or use Agent mode.

ProOur pick

$20/mo, or $17/mo billed yearly

Anyone who uses it most days.

Google AI Plus

US$4.99/mo

Casual users who want Gemini in Gmail and more storage.

Coding Plan LiteOur pick

$18/mo or $12.60/mo billed yearly

Developers trying GLM inside their coding tool.

Max

From $100/mo

Heavy users and people living in Claude Code.

Google AI ProOur pick

US$19.99/mo

Anyone who works in Google Workspace every day.

Coding Plan Pro

$80/mo or $56/mo billed yearly

Daily agentic coding.

Team

From $20/seat/mo billed yearly

Businesses with 2 to 150 people.

Google AI Ultra

From US$99.99/mo

Heavy creative and agent users.

Coding Plan Max

$168/mo or $117.60/mo billed yearly

Developers running agents for hours every day.

Which plan to pickStart on Free to see if the writing suits you. Most people who stick with it move to Pro within a month; only go to Max if you hit the Pro limits every day or you're running Claude Code for hours at a time.Skip the free plan for anything serious now that it's Flash-Lite only. AI Pro (US$19.99, or A$32.99 in Australia) is the one to buy: it's the cheapest way to get Gemini 4 Argon plus Gemini in Docs and Gmail, and the 5 TB of storage offsets a Google One bill. Ultra is for people generating video all day.For chat, it's free. Developers should start with Coding Plan Lite and code off-peak, because usage between 2pm and 6pm Singapore time on weekdays costs more credits. Move to Pro only if you hit the weekly cap.

Key features

AttributeClaudeGoogle GeminiZ.ai
Standout features
  • Projects
  • Artifacts
  • Long documents
  • Web search and connectors
  • Tasks and Claude Code
  • Memory
  • Gemini in Gmail, Docs and Drive
  • Deep Research
  • Image and video making
  • Gemini Live and desktop apps
  • Tasks and connected apps
  • Gemini in Chrome
  • Free chat
  • Agent mode
  • GLM Coding Plan
  • Open models
  • Vision coding

Pros and cons

AttributeClaudeGoogle GeminiZ.ai
Pros
  • Writing sounds like a person and needs the least editing of any assistant
  • Handles long documents and messy briefs without losing track
  • Projects and memory mean you stop repeating the same context
  • Artifacts turn answers into real documents, slides and small apps
  • One subscription covers Claude Code as well
  • The free plan now includes memory, connectors and Artifacts
  • Reads and acts on your Gmail, Docs and Drive directly
  • AI Pro bundles the top model, Workspace features and 5 TB of storage for one price
  • Deep Research is included even on the free plan
  • Fast, and the mobile and Android experience is polished
  • Video and image generation included on paid plans
  • Desktop apps for Windows and Mac as well as the web
  • Free chat with a top open model and a capable Agent mode
  • Coding Plan plugs GLM into Claude Code, Codex and similar tools for less than top Claude plans
  • Open models under an MIT licence for most versions
  • GLM is strong at coding and long agent tasks
Cons
  • Free and Pro usage limits can bite on a busy day
  • No image or video generation, which ChatGPT and Gemini both have
  • The free plan doesn't include the top Opus models
  • Fewer third-party connectors and plugins than ChatGPT
  • Free plan is now Flash-Lite only, so it's weaker than the free tiers of ChatGPT or Claude
  • Plan names and model access keep changing, which is confusing
  • Writing quality sits behind Claude and the answers can be padded
  • Workspace features need a personal Google account or a Workspace admin to turn them on
  • Usage resets every 5 hours up to a weekly cap, and Google doesn't publish the numbers
  • Slowdowns, rate limits and throttling at busy times, with a public apology from Zhipu in 2026
  • Prices and usage rules keep changing, including a 30% rise and a switch to credits
  • Zhipu is on the US trade blacklist and its hosted service filters sensitive topics
  • No international mobile app and a plainer chat experience than Qwen or Kimi
  • Users report locked accounts, slow support and dashboard token counts far higher than their tools show

Who each one is for

AttributeClaudeGoogle GeminiZ.ai
Best for
  • Long-form writing and editing
  • Reading and summarising long documents
  • Thinking through a plan or decision
  • Pairing with Claude Code
  • Searching and summarising your Gmail
  • Drafting in Google Docs
  • Image and video generation on paid plans
  • Hands-free help on Android
  • Cheaper agentic coding in Claude Code or OpenCode
  • Free chat with a top open model
  • Quick slides and websites from Agent mode
  • Developers who want open models
You'll find it used by
  • Writers and marketers
  • Founders
  • Consultants
  • Developers
  • Google Workspace teams
  • Marketers
  • Small business owners
  • Android users
  • Developers
  • Indie hackers
  • Students
  • Open-model fans

Questions people ask

Which is better, Claude, Google Gemini or Z.ai?

Claude scores highest overall in our ratings (Claude 4.6/5, Google Gemini 4.2/5 and Z.ai 3.5/5). Claude is best for long-form writing and editing and reading and summarising long documents. Google Gemini is best for searching and summarising your Gmail and drafting in Google Docs. Z.ai is best for cheaper agentic coding in Claude Code or OpenCode and free chat with a top open model.

Which is cheaper, Claude, Google Gemini or Z.ai?

Claude: There's a free plan, and paid plans start at $20/mo. Google Gemini: There's a free plan, and paid plans start at US$4.99/mo. Z.ai: There's a free plan, and paid plans start at $18/mo or $12.60/mo.

Which is easier to use, Claude, Google Gemini or Z.ai?

Claude rates highest for ease of use in our scores. Anyone who writes, researches or makes decisions for a living, plus anyone curious about Claude Code.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

Swap in another tool

More tools from AI Assistants & LLMs in the library.