Perplexity Sonar API vs Gauth vs Exa 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
Gauth
Competitor 2
Exa
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 Gauth
gauthmath.com
Gauth is an AI homework helper that solves questions across school subjects.
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Competitor Exa
exa.ai
Search built for AI
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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
—
—
930.8Kvisits/mo
15.5Kvisits/mo
MoM change
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▲ 9.9%
▼ 62.7%
6-month growth
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+16.3%
+4.7%
Global rank web
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#55,392
#1,733,591
Avg. last 3 months
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844.7K
23.1K
Bounce rate lower is better
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38%
45%
Pages / visit
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4.3
1.5
Visit duration
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3m 23s
15s
Traffic sources
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● Direct 86% · ● Referral 12%
● Direct 95% · ● Referral 5%
Perplexity Sonar APIGauthExaFastRouter
0375.5K751K1.1M1.5MExa · 477.2KExa · 768.9KExa · 1.5MExa · 789.9KExa · 800.6KExa · 832.8KExa · 761.4KExa · 756.6KExa · 846.8KExa · 930.8KFastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5K1K10K100K1M10MExa · 477.2KExa · 768.9KExa · 1.5MExa · 789.9KExa · 800.6KExa · 832.8KExa · 761.4KExa · 756.6KExa · 846.8KExa · 930.8KFastRouter · 4.9KFastRouter · 14.8KFastRouter · 11KFastRouter · 10.2KFastRouter · 12.2KFastRouter · 41.6KFastRouter · 15.5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
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Freemium
Freemium
Freemium
Starting price
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€6.66per month · free tier available
Free tier
$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
Free FreeGauth PLUS 1 Month €9.99/moGauth PLUS 3 Months €19.99Gauth PLUS 12 Months €79.99/yr
Starter $10/moDeveloper CustomEnterprise Custom/mo
Starter FreePro $199/moBusiness $799/moEnterprise Custom
Capabilities input → output
Input
Text
ImagesText
TextWeb pages
AudioImagesText
Output
Text
Text
DataText
AudioImagesTextVideo
Skill level
Advanced
Beginner-friendly
Advanced
Advanced
Categories
Development & CodeAI API
Education & LearningAI Homework HelperAI Math
Development & CodeProductivity & OfficeResearch & AnalyticsAI API+3 more
Development & CodeAI APIAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
11
7
6
APIs
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LLM gateway
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Model routing
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Developer tools
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Development
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AI search
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Homework assistance
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Search engine
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Web search
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Website crawling
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All subjects tutoring
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Information retrieval
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Math
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Math explanations
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Research
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Web scraping
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Web search summaries
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API integrations
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API management
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Agents
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Calculus tutoring
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Math problems
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Physics
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Physics explanations
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School subjects
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Statistics tutoring
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Tutoring
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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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Saves
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0
Reviews
0
0
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0
Prompts
0
0
0
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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.