Pi vs OpenCode vs OpenAI Codex vs Kimi AI

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

Your tool
Pi
vs
Competitor 1
OpenCode
Competitor 2
OpenAI Codex
Competitor 3
Kimi AI
Compare
4 tools · best value per row highlighted
Your tool Pi
pi.ai
An AI that's genuinely pleasant to talk with
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Competitor OpenCode
opencode.ai
OpenCode is an open-source AI coding agent that helps developers write code in the terminal, an IDE or a desktop app.
Make main Remove
Competitor OpenAI Codex
openai.com
A dedicated coding agent that writes and runs code for you
Make main Remove
Competitor Kimi AI
kimi.com
This conversational AI platform runs on the K2
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
473.9Kvisits/mo
—
204.3Mvisits/mo
60.1Mvisits/mo
MoM change
▼ 9.4%
—
▲ 3.6%
▲ 52.2%
6-month growth
-16.4%
—
+0.3%
+33.8%
Global rank web
#87,743
—
#212
#852
Avg. last 3 months
512.8K
—
197.3M
48.3M
Bounce rate lower is better
33%
—
58%
37%
Pages / visit
3.7
—
3.0
3.9
Visit duration
1m 37s
—
2m 31s
7m 13s
Traffic sources
● Direct 87% · ● Referral 9%
—
● Direct 81% · ● Referral 17%
● Direct 89% · ● Referral 10%
PiOpenCodeOpenAI CodexKimi AI
066.6M133.2M199.7M266.3MPi · 609.8KPi · 591.6KPi · 610.8KPi · 583.3KPi · 566.6KPi · 557.8KPi · 576.6KPi · 541.3KPi · 523.3KPi · 473.9KOpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3MKimi AI · 38.2MKimi AI · 33.5MKimi AI · 44.9MKimi AI · 48.1MKimi AI · 43MKimi AI · 45.3MKimi AI · 39.5MKimi AI · 60.1M100K1M10M100M1BPi · 609.8KPi · 591.6KPi · 610.8KPi · 583.3KPi · 566.6KPi · 557.8KPi · 576.6KPi · 541.3KPi · 523.3KPi · 473.9KOpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3MKimi AI · 38.2MKimi AI · 33.5MKimi AI · 44.9MKimi AI · 48.1MKimi AI · 43MKimi AI · 45.3MKimi AI · 39.5MKimi AI · 60.1MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Free
Freemium
Freemium
Starting price
Free
Free
$20per month · free tier available
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Free tier
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Free trial
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API access
–
–
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Plans
—
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Capabilities input → output
Input
TextAudio
CodeText
TextCode
ImagesTextDocumentsCode
Output
AudioText
Code
Code
TextSlidesDocumentsCode
Skill level
Beginner-friendly
Advanced
Advanced
Intermediate
Categories
Chatbots & CompanionsEducation & LearningHealthcare & WellnessAI Chatbot+2 more
Development & CodeAI Coding Assistant
Development & CodeAI Code ReviewAI Coding Assistant
Chatbots & CompanionsDevelopment & CodeEducation & LearningProductivity & Office+17 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
6
9
11
Coding
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Agents
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Chatbots
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Development
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Chatting
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AI search
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Companions
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Document chat
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GitHub automation
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GitHub pull requests
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Large language models
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Mental health
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Presentations
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Research
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Wellness
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Coaching
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Code documentation
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Code reviews
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Debugging
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Developer tools
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Local AI
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Presentation planning
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Self hosted
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Spreadsheets
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Summarizing
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Terminal
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Therapeutic chatbot
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 1
▲ 0
Saves
1
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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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.