CometAPI vs Defapi vs Vapi vs OpenRouter

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

Your tool
CometAPI
vs
Competitor 1
DDefapi
Competitor 2
Vapi
Competitor 3
OpenRouter
Compare
4 tools · best value per row highlighted
Your tool CometAPI
cometapi.com
CometAPI functions as an aggregation layer that sits between your application and hundreds of AI model providers
Remove
Competitor DDefapi
defapi.org
You know how managing multiple AI provider integrations usually means maintaining separate codebases for each vendor
Make main Remove
Competitor Vapi
vapi.ai
Vapi is a developer platform for building, testing and deploying voice AI agents that talk to customers on the phone.
Make main Remove
Competitor OpenRouter
openrouter.ai
Every model, one endpoint
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
302.3Kvisits/mo
2.4Kvisits/mo
—
22Mvisits/mo
MoM change
▲ 9.9%
▼ 42.6%
—
▲ 14.6%
6-month growth
-16.5%
-86.2%
—
+39.6%
Global rank web
#157,147
#4,650,820
—
#2,023
Avg. last 3 months
295.7K
4.8K
—
19.5M
Bounce rate lower is better
46%
36%
—
32%
Pages / visit
2.9
1.4
—
7.7
Visit duration
38s
7s
—
6m 13s
Traffic sources
● Direct 69% · ● Referral 30%
—
—
● Direct 89% · ● Referral 10%
CometAPIDefapiVapiOpenRouter
05.5M11M16.5M22MCometAPI · 834.4KCometAPI · 619.7KCometAPI · 437.2KCometAPI · 362.2KCometAPI · 355.5KCometAPI · 362.7KCometAPI · 309.5KCometAPI · 275.2KCometAPI · 302.3KDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22M1K10K100K1M10M100MCometAPI · 834.4KCometAPI · 619.7KCometAPI · 437.2KCometAPI · 362.2KCometAPI · 355.5KCometAPI · 362.7KCometAPI · 309.5KCometAPI · 275.2KCometAPI · 302.3KDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KOpenRouter · 7.5MOpenRouter · 8.6MOpenRouter · 8.4MOpenRouter · 11.2MOpenRouter · 15.8MOpenRouter · 17.9MOpenRouter · 16.8MOpenRouter · 17.3MOpenRouter · 19.2MOpenRouter · 22MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Freemium
Starting price
$4per month · free tier available
—
$29per month
Free tier
Free tier
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Free trial
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API access
Plans
Free Trial FreePay-as-you-go Custom/usage-basedEnterprise Custom/mo
Gemini 3.1 Pro Preview $1/$6/per requestClaude Sonnet 4.6 $1.5/$7.5/per requestClaude Opus 4.6 $2.5/$12.5/per requestSora 2 Stable $0.175+/per request+2 more
No Success Package FreeCore $29/moPro $999/moPremier Custom
Free FreeStandard Custom/moBusiness Custom/moEnterprise Custom
Capabilities input → output
Input
ImagesText
AudioImagesText
TextAudio
AudioVideoTextImages
Output
VideoTextImages
AudioImagesText
AudioApps
VideoTextImagesAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI API
Development & CodeAI API
Business & MarketingVoice & SpeechAI Call CenterAI Customer Service+1 more
Development & CodeAI APILarge Language Models (LLMs)
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
4
11
5
APIs
LLM gateway
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API integrations
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Developer tools
–
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Voice agents
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–
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API management
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Agent creation
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Call agents
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Call center automation
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Customer calls
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Customer support
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Large language models
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API security
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Agent testing
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Call answering
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Calls
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Development
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Image generation
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LLM comparison
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Video generation
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
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.