Perplexity Sonar API vs IAsk vs Kagi

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

Your tool
Perplexity Sonar API
vs
Competitor 1
IAsk
Competitor 2
Kagi
Competitor 3
Compare
3 tools · best value per row highlighted
Your tool Perplexity Sonar API
docs.perplexity.ai
Perplexity Sonar API is the developer platform behind Perplexity's real-time web research, exposed as a Router API, an Agent API, a Search API and an Embeddings API.
Competitor IAsk
iask.ai
IAsk
Competitor Kagi
kagi.com
Kagi is a paid search engine with no ads and no tracking, funded entirely by subscribers rather than advertisers.
Traffic estimated monthly website traffic
Monthly visits
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736.4Kvisits/mo
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MoM change
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6-month growth
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Global rank web
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Avg. last 3 months
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736.4K
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Bounce rate lower is better
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Pages / visit
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Visit duration
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Traffic sources
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Pricing
Model
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Freemium
Freemium
Starting price
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Free tier
$5per month
Free tier
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Free trial
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API access
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Plans
Router API CustomAgent API CustomSearch API CustomEmbeddings API Custom+1 more
Free FreeiAsk Pro
Trial FreeStarter $5/moProfessional $10/moUltimate $25/mo
Capabilities input → output
Input
Text
DocumentsTextWeb pages
TextWeb pages
Output
Text
Text
Text
Skill level
Advanced
Beginner-friendly
Beginner-friendly
Categories
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
1
8
5
Search engine
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AI search
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APIs
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Chatbots
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Essay writing
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Homework assistance
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Document analysis
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Grammar checking
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Image generation
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News
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Research
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Summarizing
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Translations
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
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▲ 1
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Saves
0
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Reviews
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Prompts
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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.