Perplexity
Perplexity
2
Answer engine with citations
- Version
- Comet era
- Cost
- Free tier, Pro $20/mo
- Model
- Sonar
Metaso
Metaso · #10 most active of 14 in Search & Research
Metaso (秘塔) answers with sourced citations and generates outlines and mind maps from results.
Current version
3.0
Entry cost
from $5/mo
Changes / 30d
0
Capabilities
- Cited answers
- Mind maps
- Outline generation
- Academic mode
- No ads
Pricing
Free
Free
Plus
$5
Entry price over time
Not enough pricing history yet — we start charting from the second observation.
Geek mode
Models under the hood
- inferred
Undisclosed in-house model
Metaso
- inferred
DeepSeek-R1
DeepSeek
Context window
undisclosed
Public API
no
Multi-model routing
yes
Stack signals
- Own search index
- Citation graph
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.
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
Change history
No changes recorded yet.