G
Brainly vs Perplexity AI
Pricing, features, platforms and who each one suits — side by side.
B
Choose Brainly if…
- you're in its core audience: middle and high school students, college students
P
Choose Perplexity AI if…
- you need an API to build on
- you're in its core audience: researchers, knowledge workers
Side by side
Feature Brainly Perplexity AI
Pricing modelPricing unknownPaid
Starting price——
Free plan
Free trial
API
Open source
PlatformsWebWeb, API
CategoryHomework HelpersAI Search
CompanyBrainlyPerplexity · since 2022
Full feature lists
B Brainly
- Search answers to homework questions
- Post your own school questions
- Step-by-step explanations across school subjects
- Brainly Plus paid subscription
P Perplexity AI
- Answers questions using live web search
- Search API with Standard and Fast Search modes
- Agent API running OpenAI, Anthropic, Google and other models
- Built-in tools: web, image, people and finance search
- Code sandbox sessions for agents
- pplx-embed embedding models
- Orchestrator API with per-token billing
- Decisions API that charges for input tokens only
What you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
Brainly
Pricing unknown. Plan details aren't published.
Perplexity AI
Search API$5.00 per 1K requests (Standard); $1.00 per 1K (Fast Search)
Agent API toolsFrom $0.50 per 1K calls
Embeddings API$0.004–$0.05 per 1M tokens
Decisions API$0.01–$0.02 per 1M input tokens
Strengths and limitations
Brainly
- Covers many school subjects
- Students can ask their own questions
—
Perplexity AI
- Published per-request and per-token API pricing
- Requests rejected with a 429 error are not billed on the Orchestrator API
- Access to models from several vendors through one Agent API
- Decisions API output tokens are free
- Search API bills successful requests even when they return no results
- Per-token model rates are on separate pages rather than in the main pricing overview
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S
SS
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W
WComputational answer engine for math, science and data, with step-by-step solutions
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Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy