Perplexity Sonar API vs Kagi vs OsirisBrain vs FastRouter

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

Your tool
Perplexity Sonar API
vs
Competitor 1
Kagi
Competitor 2
OsirisBrain
Competitor 3
FastRouter
Compare
4 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.
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Competitor Kagi
kagi.com
Kagi is a paid search engine with no ads and no tracking, funded entirely by subscribers rather than advertisers.
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Competitor OsirisBrain
osirisbrain.com
OsirisBrain is a single frontier reasoning model sold through an OpenAI-compatible API.
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Competitor FastRouter
fastrouter.ai
This LLM gateway lets teams tap into over 100 AI models through one API endpoint
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Traffic estimated monthly website traffic
Monthly visits
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334visits/mo
15.5Kvisits/mo
MoM change
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—
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▼ 62.7%
6-month growth
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+4.7%
Global rank web
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#1,733,591
Avg. last 3 months
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111
23.1K
Bounce rate lower is better
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40%
45%
Pages / visit
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1.0
1.5
Visit duration
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15s
Traffic sources
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● Direct 95% · ● Referral 5%
Perplexity Sonar APIKagiOsirisBrainFastRouter
010.4K20.8K31.2K41.6KOsirisBrain · 334FastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5K1001K10K100KOsirisBrain · 334FastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5KJan '26FebMarAprMayJunJul
Pricing
Model
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Freemium
Freemium
Freemium
Starting price
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$5per month
$5per month · free tier available
$199per month · free tier available
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
Trial FreeStarter $5/moProfessional $10/moUltimate $25/mo
Starter $5Pro $20Enterprise Custom
Starter FreePro $199/moBusiness $799/moEnterprise Custom
Capabilities input → output
Input
Text
TextWeb pages
CodeText
AudioImagesText
Output
Text
Text
CodeText
AudioImagesTextVideo
Skill level
Advanced
Beginner-friendly
Advanced
Advanced
Categories
Development & CodeAI API
Chatbots & CompanionsEducation & LearningLifestyle & EntertainmentProductivity & Office+6 more
Development & CodeAI API
Development & CodeAI APIAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
8
6
6
APIs
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LLM gateway
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Developer tools
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Model routing
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API integrations
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Search engine
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Web search
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AI search
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Chatbots
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Information retrieval
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News
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Summarizing
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Translations
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Web search summaries
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API management
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Agents
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Browser
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Coding
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Development
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LLM development
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Research
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
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▲ 1
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Saves
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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.