Voiceflow vs Stack AI vs ChatNode vs GPT Trainer

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

Your tool
Voiceflow
vs
Competitor 1
Stack AI
Competitor 2
ChatNode
Competitor 3
GPT Trainer
Compare
4 tools · best value per row highlighted
Your tool Voiceflow
voiceflow.com
Design conversations visually
Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Competitor ChatNode
chatnode.ai
ChatNode builds AI customer service agents that handle support queries and execute actions through API calls
Make main Remove
Competitor GPT Trainer
gpt-trainer.com
Build AI agents that actually talk to customers without writing code
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
385Kvisits/mo
6.3Kvisits/mo
7.9Kvisits/mo
15Kvisits/mo
MoM change
▼ 5.8%
▼ 57.9%
▼ 56.0%
▼ 25.4%
6-month growth
-35.3%
-93.7%
-13.9%
-34.8%
Global rank web
#93,201
#1,700,092
#1,061,283
#1,494,515
Avg. last 3 months
407.5K
13.9K
12.2K
20K
Bounce rate lower is better
38%
39%
39%
41%
Pages / visit
5.2
1.8
4.9
1.4
Visit duration
3m 07s
14s
2m 20s
2s
Traffic sources
● Direct 75% · ● Referral 24%
—
● Direct 97% · ● Mail 3%
—
VoiceflowStack AIChatNodeGPT Trainer
0150K300K450.1K600.1KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9KGPT Trainer · 20KGPT Trainer · 25.7KGPT Trainer · 23KGPT Trainer · 23KGPT Trainer · 16.1KGPT Trainer · 21.7KGPT Trainer · 24.9KGPT Trainer · 20.1KGPT Trainer · 15K1K10K100K1MVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9KGPT Trainer · 20KGPT Trainer · 25.7KGPT Trainer · 23KGPT Trainer · 23KGPT Trainer · 16.1KGPT Trainer · 21.7KGPT Trainer · 24.9KGPT Trainer · 20.1KGPT Trainer · 15KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Free Trial
Freemium
Starting price
Free tier
Free tier
$35per month
$150per month · free tier available
Free tier
–
Free trial
–
API access
Plans
—
—
Lite $35/moStandard $89/moScale $377/moEnterprise Custom
Self-Serve $150/moScale $600/moEnterprise Custom
Capabilities input → output
Input
DocumentsText
DataDocumentsText
DocumentsTextWeb pages
DocumentsText
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Intermediate
Intermediate
Intermediate
Categories
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+3 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+2 more
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+4 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
13
7
9
14
Agents
Customer support
–
Agent creation
–
Chatbots
–
Chatbot building
–
Customer support chatbot
–
–
Call center automation
–
–
Call agents
–
–
Calls
–
–
No-code
–
–
Chatbot integration
–
–
Website to chatbot
–
–
Call answering
–
–
Voice agents
–
–
–
Workflows
–
–
–
Business automation
–
–
–
CRM
–
–
–
Customer support automation
–
–
–
Knowledge bases
–
–
–
Lead generation
–
–
–
Process automation
–
–
–
Voice chatting
–
–
–
Chatbot personalization
–
–
–
Finance workflow automation
–
–
–
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.