Perplexity
Perplexity
2
Answer engine with citations
- Version
- Comet era
- Cost
- Free tier, Pro $20/mo
- Model
- Sonar
NotebookLM
Google · #11 most active of 14 in Search & Research
Grounded research notebook with audio and video overviews.
Current version
2025
Entry cost
Free, Pro via Google AI Plus
Changes / 30d
0
Capabilities
- Source grounding
- Audio overviews
- Mind maps
Pricing
Free, Pro via Google AI Plus
Entry price over time
Not enough pricing history yet — we start charting from the second observation.
Geek mode
Models under the hood
- disclosed
Gemini 3
Context window
—
Public API
no
Multi-model routing
no
Stack signals
- Google Cloud
Shared model stack
Other tracked products running on the same foundation models — a quick read on how much of the catalog moves when one of these models changes.
- Gemini 3Unknown · 2 products
green disclosed · amber inferred · grey unknown
Reported scale
Reference data. Each figure is whatever the source actually said — weekly users, downloads, revenue run-rate — with its own definition and date. These are not comparable between tools and are never used to rank anything.
No public usage figure on record for this product.
Also in Search & Research
All Search & ResearchExa
Exa
1
Search API built for AI
- Version
- Exa 2.0
- Cost
- Free credits, then usage-based
- Model
- Exa embeddings
GeminiGoogle
1
Google's assistant and model family
- Version
- 3 Pro
- Cost
- Free tier, AI Pro $20/mo
- Model
- Gemini 3 Pro
ChatGPT Deep Research
OpenAI
Multi-step research reports
- Version
- o-series era
- Cost
- from $20/mo
- Model
- GPT-5.2 Thinking
Consensus
Consensus
Evidence-based answers from science
- Version
- 2025 platform
- Cost
- Free tier, Premium $9/mo
- Model
- GPT-5.2
Elicit
Elicit
AI research assistant for papers
- Version
- 2025 platform
- Cost
- Free tier, Plus $12/mo
- Model
- Claude
Elsewhere on the same models
Products in other segments that name one of NotebookLM's models in their stack.
Gemini for WorkspaceGoogle
Gemini across Docs, Sheets, Gmail and Meet.
- Version
- 2025
- Cost
- Bundled in Workspace plans
- Model
- Gemini 3
Change history
No changes recorded yet.