LangChain vs pgvector vs Unsloth AI vs CrewAI

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

Your tool
LangChain
vs
Competitor 1
pgvector
Competitor 2
Unsloth AI
Competitor 3
CrewAI
Compare
4 tools · best value per row highlighted
Your tool LangChain
langchain.com
Framework for building with large language models
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Competitor pgvector
github.com
pgvector is an open-source extension that adds vector similarity search to Postgres.
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 CrewAI
crewai.com
CrewAI is a multi-agent platform that covers the full agent lifecycle for businesses: discover what to automate, build agents, govern them in production and optimize them over time.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
3.4Mvisits/mo
—
1.5Mvisits/mo
476.6Kvisits/mo
MoM change
▲ 0.7%
—
▲ 47.7%
▼ 10.3%
6-month growth
+21.0%
—
+22.2%
-5.3%
Global rank web
#13,384
—
#57,929
#107,487
Avg. last 3 months
3.3M
—
1.3M
564.3K
Bounce rate lower is better
42%
—
48%
46%
Pages / visit
6.2
—
2.4
2.6
Visit duration
5m 29s
—
1m 53s
1m 32s
Traffic sources
● Direct 73% · ● Referral 24%
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● Direct 62% · ● Referral 38%
● Direct 75% · ● Referral 23%
LangChainpgvectorUnsloth AICrewAI
0850.7K1.7M2.6M3.4MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MUnsloth AI · 517KUnsloth AI · 574.8KUnsloth AI · 698.3KUnsloth AI · 1.3MUnsloth AI · 1.6MUnsloth AI · 1.1MUnsloth AI · 1.2MUnsloth AI · 1MUnsloth AI · 1.5MCrewAI · 408.9KCrewAI · 417.1KCrewAI · 521.4KCrewAI · 503.5KCrewAI · 610.1KCrewAI · 646.1KCrewAI · 685.2KCrewAI · 531.1KCrewAI · 476.6K100K1M10MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MUnsloth AI · 517KUnsloth AI · 574.8KUnsloth AI · 698.3KUnsloth AI · 1.3MUnsloth AI · 1.6MUnsloth AI · 1.1MUnsloth AI · 1.2MUnsloth AI · 1MUnsloth AI · 1.5MCrewAI · 408.9KCrewAI · 417.1KCrewAI · 521.4KCrewAI · 503.5KCrewAI · 610.1KCrewAI · 646.1KCrewAI · 685.2KCrewAI · 531.1KCrewAI · 476.6KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Free
Free
Starting price
$39per month · free tier available
Free
Free
Free
Free tier
Free trial
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API access
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Plans
Developer FreePlus $39/moEnterprise Custom/mo
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Free FreePro Contact for pricingEnterprise Contact for pricing
Basic FreeEnterprise $0
Capabilities input → output
Input
CodeText
Data
DataImagesText
Text
Output
Apps
Data
ImagesTextVideo
AppsCode
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeAI Developer ToolsOpen Source AI Models
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+2 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
7
3
9
Developer tools
Agent creation
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Agents
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LLM development
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Development
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Agent testing
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Agent collaboration
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Fine-Tuning
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Vector databases
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Vector indexes
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Agent management
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No-code
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PostgreSQL assistance
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Workflows
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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
▲ 1
▲ 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.