Z.ai vs OpenAI API vs GitHub Copilot vs ChatGPT

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Z.ai
vs
Competitor 1
OpenAI API
Competitor 2
GitHub Copilot
Competitor 3
ChatGPT
Compare
4 tools · best value per row highlighted
Your tool Z.ai
chat.z.ai
Z
Remove
Competitor OpenAI API
platform.openai.com
The API powering the AI ecosystem
Make main Remove
Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Make main Remove
Competitor ChatGPT
chatgpt.com
Your AI assistant for everything
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
10Mvisits/mo
15.2Mvisits/mo
637.9Mvisits/mo
5.6Bvisits/mo
MoM change
▼ 12.3%
▲ 4.6%
▲ 3.7%
▲ 3.5%
6-month growth
+44.6%
-2.4%
+19.3%
-1.6%
Global rank web
—
—
#49
#7
Avg. last 3 months
10.6M
15.2M
629.7M
5.5B
Bounce rate lower is better
25%
34%
36%
30%
Pages / visit
3.2
5.4
5.9
4.3
Visit duration
19m 00s
3m 56s
6m 26s
6m 35s
Traffic sources
● Direct 91% · ● Referral 8%
● Direct 82% · ● Referral 15%
● Direct 83% · ● Referral 15%
● Direct 95% · ● Referral 3%
Z.aiOpenAI APIGitHub CopilotChatGPT
01.5B2.9B4.4B5.8BZ.ai · 4.2MZ.ai · 4.4MZ.ai · 5.4MZ.ai · 6.2MZ.ai · 6.9MZ.ai · 8.6MZ.ai · 8.5MZ.ai · 10.4MZ.ai · 11.4MZ.ai · 10MOpenAI API · 18.7MOpenAI API · 16.7MOpenAI API · 16.5MOpenAI API · 15.6MOpenAI API · 15.9MOpenAI API · 15.1MOpenAI API · 15.7MOpenAI API · 14.6MOpenAI API · 15.2MGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MChatGPT · 5.8BChatGPT · 5.5BChatGPT · 5.7BChatGPT · 5.4BChatGPT · 5.7BChatGPT · 5.5BChatGPT · 5.6BChatGPT · 5.4BChatGPT · 5.5BChatGPT · 5.6B1M10M100M1B10BZ.ai · 4.2MZ.ai · 4.4MZ.ai · 5.4MZ.ai · 6.2MZ.ai · 6.9MZ.ai · 8.6MZ.ai · 8.5MZ.ai · 10.4MZ.ai · 11.4MZ.ai · 10MOpenAI API · 18.7MOpenAI API · 16.7MOpenAI API · 16.5MOpenAI API · 15.6MOpenAI API · 15.9MOpenAI API · 15.1MOpenAI API · 15.7MOpenAI API · 14.6MOpenAI API · 15.2MGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MChatGPT · 5.8BChatGPT · 5.5BChatGPT · 5.7BChatGPT · 5.4BChatGPT · 5.7BChatGPT · 5.5BChatGPT · 5.6BChatGPT · 5.4BChatGPT · 5.5BChatGPT · 5.6BNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Paid
Freemium
Freemium
Starting price
Free
—
$4per month · free tier available
$8per month · free tier available
Free tier
–
Free trial
–
–
API access
–
–
–
–
Plans
—
—
Free FreeTeam $4/moEnterprise $21/mo
Free FreeGo $8/moPlus $20/moPro 5x $100/mo+1 more
Capabilities input → output
Input
TextImagesDocumentsCode
AudioDocumentsImagesText
TextCode
TextImagesDocumentsCodeAudio
Output
TextCodeApps
VideoTextImagesCodeAudio
Code
TextImagesCodeAudio
Skill level
Intermediate
Advanced
Intermediate
Beginner-friendly
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+6 more
Development & CodeAI APILarge Language Models (LLMs)
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Chatbots & CompanionsDevelopment & CodeEducation & LearningImage Editing+27 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
4
6
9
19
Coding
–
Chatbots
–
–
Agents
–
–
Large language models
–
–
Debugging
–
–
APIs
–
–
–
Code autocompletion
–
–
–
Blogging
–
–
–
Code reviews
–
–
–
Coding in VS Code
–
–
–
Copywriting
–
–
–
Developer tools
–
–
–
Email writing
–
–
–
Essay writing
–
–
–
Grammar checking
–
–
–
Image generation
–
–
–
Image to text
–
–
–
LLM development
–
–
–
Research
–
–
–
Search engine
–
–
–
Summarizing
–
–
–
Translations
–
–
–
Vs code
–
–
–
Writing
–
–
–
API integrations
–
–
–
Agent management
–
–
–
Chatbot building
–
–
–
Code documentation
–
–
–
Image editing
–
–
–
Image to image
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
★ 4.34 ratings
Upvotes
▲ 1
▲ 1
▲ 0
▲ 17
Saves
0
0
0
4
Reviews
0
0
0
4
Prompts
0
0
2
17
Verified listing
–
–
–
–

Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.