pgvector vs Weaviate vs Unsloth AI vs act101

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

Your tool
pgvector
vs
Competitor 1
Weaviate
Competitor 2
Unsloth AI
Competitor 3
act101
Compare
4 tools · best value per row highlighted
Your tool pgvector
github.com
pgvector is an open-source extension that adds vector similarity search to Postgres.
Remove
Competitor Weaviate
weaviate.io
Search that understands meaning
Make main Remove
Competitor Unsloth AI
unsloth.ai
A machine learning engineer needs to fine-tune Llama 3 on a single NVIDIA T4 GPU but keeps hitting out-of-memory errors
Make main Remove
Competitor act101
act101.ai
Build bigger, better, faster, for less.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
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154.2Kvisits/mo
1.5Mvisits/mo
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MoM change
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▼ 11.8%
▲ 47.7%
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6-month growth
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-7.0%
+22.2%
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Global rank web
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#293,589
#57,929
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Avg. last 3 months
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155.7K
1.3M
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Bounce rate lower is better
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41%
48%
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Pages / visit
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1.9
2.4
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Visit duration
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50s
1m 53s
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Traffic sources
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● Direct 82% · ● Referral 18%
● Direct 62% · ● Referral 38%
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pgvectorWeaviateUnsloth AIact101
0392.3K784.5K1.2M1.6MWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KUnsloth AI · 517KUnsloth AI · 574.8KUnsloth AI · 698.3KUnsloth AI · 1.3MUnsloth AI · 1.6MUnsloth AI · 1.1MUnsloth AI · 1.2MUnsloth AI · 1MUnsloth AI · 1.5M100K1M10MWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KUnsloth AI · 517KUnsloth AI · 574.8KUnsloth AI · 698.3KUnsloth AI · 1.3MUnsloth AI · 1.6MUnsloth AI · 1.1MUnsloth AI · 1.2MUnsloth AI · 1MUnsloth AI · 1.5MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Free
Freemium
Starting price
Free
$45per month · free tier available
Free
$29per month · free tier available
Free tier
Free trial
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API access
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Plans
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Free FreeFlex $45/moPremium $0
Free FreePro Contact for pricingEnterprise Contact for pricing
Builder Edition FreeEngineering Edition $29/moArchitecture Edition $59/moElite Edition $99/mo
Capabilities input → output
Input
Data
DataImagesText
DataImagesText
Code
Output
Data
Data
ImagesTextVideo
Code
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeAI Developer ToolsOpen Source AI Models
Development & CodeAI Code ReviewAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
6
3
10
Developer tools
Vector databases
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LLM development
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Code analysis
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Code conversion
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Code translation
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Fine-Tuning
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Refactoring
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Vector indexes
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Code quality
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Coding
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Databases
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MCP
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PostgreSQL assistance
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APIs
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Agents
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Code reviews
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Information retrieval
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RAG
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SQL
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Self hosted
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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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▲ 1
Saves
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Reviews
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Prompts
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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.