Lambda vs Dify vs Haystack vs Stack AI
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
Lambda
vs
Lambda
Competitor 1
Dify
Dify
Competitor 2
Haystack
Haystack
Competitor 3
Stack AI
Stack AICompare
4 tools · best value per row highlighted
Competitor
Haystack
Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
Traffic estimated monthly website traffic
Monthly visits
—
1Mvisits/mo
—
6.3Kvisits/mo
MoM change
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▼ 16.6%
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▼ 57.9%
6-month growth
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-30.6%
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-93.7%
Global rank web
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#39,510
—
#1,700,092
Avg. last 3 months
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1.1M
—
13.9K
Bounce rate lower is better
—
41%
—
39%
Pages / visit
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4.4
—
1.8
Visit duration
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6m 40s
—
14s
Traffic sources
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● Direct 84% · ● Referral 15%
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—
LambdaDifyHaystackStack AI
Pricing
Model
Paid
Freemium
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Freemium
Starting price
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$590per month · free tier available
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Free tier
Free tier
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Free trial
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API access
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Plans
On-demand instances (8x GPU) CustomOn-demand instances (1x GPU) Custom1-Click Clusters CustomReserved / Superclusters Custom
Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
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Capabilities input → output
Input
CodeData
DocumentsText
CodeDocuments
DataDocumentsText
Output
Apps
Apps
Apps
Apps
Skill level
Advanced
Intermediate
Advanced
Intermediate
Categories
Tasks what each tool can do · 0 shared · core partial
Tasks covered
2
9
5
5
Agents
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Agent creation
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Developer tools
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No-code
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Workflows
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LLM development
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GPU infrastructure
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–
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Chatbots
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–
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Agent memory
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–
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Development
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–
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Finance workflow automation
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–
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Productivity
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–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 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.