Weaviate vs Unitlab Annotate vs Pinecone vs pgvector

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

Your tool
Weaviate
vs
Competitor 1
Unitlab Annotate
Competitor 2
Pinecone
Competitor 3
pgvector
Compare
4 tools · best value per row highlighted
Your tool Weaviate
weaviate.io
Search that understands meaning
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Competitor Unitlab Annotate
unitlab.ai
Make main Remove
Competitor Pinecone
pinecone.io
Vector database for AI applications
Make main Remove
Competitor pgvector
github.com
pgvector is an open-source extension that adds vector similarity search to Postgres.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
154.2Kvisits/mo
7.2Kvisits/mo
434.9Kvisits/mo
—
MoM change
▼ 11.8%
▲ 76.6%
▼ 13.7%
—
6-month growth
-7.0%
+37.1%
-32.9%
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Global rank web
#293,589
#2,769,635
#85,031
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Avg. last 3 months
155.7K
5.1K
506.2K
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Bounce rate lower is better
41%
62%
41%
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Pages / visit
1.9
1.1
4.2
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Visit duration
50s
1m 41s
2m 31s
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Traffic sources
● Direct 82% · ● Referral 18%
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● Direct 77% · ● Referral 20%
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WeaviateUnitlab AnnotatePineconepgvector
0162K324K486K648KWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KUnitlab Annotate · 6.4KUnitlab Annotate · 5.3KUnitlab Annotate · 4.3KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 7.2KPinecone · 602KPinecone · 565.4KPinecone · 627.7KPinecone · 536.6KPinecone · 648KPinecone · 602.3KPinecone · 648KPinecone · 579.9KPinecone · 503.7KPinecone · 434.9K1K10K100K1MWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KUnitlab Annotate · 6.4KUnitlab Annotate · 5.3KUnitlab Annotate · 4.3KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 4.1KUnitlab Annotate · 7.2KPinecone · 602KPinecone · 565.4KPinecone · 627.7KPinecone · 536.6KPinecone · 648KPinecone · 602.3KPinecone · 648KPinecone · 579.9KPinecone · 503.7KPinecone · 434.9KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Free
Starting price
$45per month · free tier available
$89per month · free tier available
$20per month · free tier available
Free
Free tier
Free trial
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API access
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Plans
Free FreeFlex $45/moPremium $0
Free FreeActive $99/moPro $195/mo
Starter FreeBuilder $20/moStandard $50/moEnterprise $500/mo
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Capabilities input → output
Input
DataImagesText
AudioDocumentsImagesTextVideo
DataText
Data
Output
Data
Data
Data
Data
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
6
4
3
Vector databases
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Databases
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Developer tools
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Image annotation
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Vector indexes
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Image segmentation
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Object identification
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PostgreSQL assistance
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APIs
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Data quality control
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Development
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Information retrieval
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LLM development
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OCR
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Video analysis
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
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.