Comparison tool
Compare AI tools side by side
Prices in each vendor’s own unit, features with the quote behind them, and the date every fact was read.
Pick two to four products. The address bar keeps your selection, so you can share the link.
Price and billing
| StackAIAI agents | BotpressAI agents | DifyAI agents | |
|---|---|---|---|
| Free plan | 500 runs per month, 2 projects, 1 seat, community support. | 100 conversations, 3 seats, 3 AI agents, no top-ups or overages. | Cloud Sandbox: 200 message credits, 1 member, 5 apps, 50 knowledge documents. Separate free self-hosted Community Edition (open source, Docker). |
| Free trial | Not verified | Not verified | Not verified |
| Starts at | Contact sales | From $150/month, billed yearly | From $590/year per workspace |
| Billing model | Custom quote | subscription + per conversation + usage-based | subscription |
| Enterprise | Contact sales | Contact sales | Contact sales |
| Checked | 16 October 2026 | 16 October 2026 | 16 October 2026 |
| Official pricing | Open | Open | Open |
These products bill in different ways, so their starting prices are not directly comparable. Work out a normal month in each one’s own unit.
Features
Confirmed on the vendor’s site Vendor says it is not offered Not verified (not the same as no)
| Feature | StackAI | Botpress | Dify |
|---|---|---|---|
| Website chat widget | Yes | Yes | Yes |
| Learns from your content | Yes | Yes | Yes |
| Document upload | Yes | Not verified | Yes |
| Voice conversation | Yes | Yes | Yes |
| Takes actions on its own | Yes | Yes | Yes |
| Hand-off to a person | Not verified | Yes | Not verified |
| Developer API | Yes | Yes | Yes |
| Integrations | Yes | Yes | Yes |
| CRM connection | Yes | Yes | Not verified |
| Multiple languages | Not verified | Yes | Yes |
| Analytics | Yes | Yes | Yes |
| Remove branding | Yes | Yes | Not verified |
| Enterprise controls | Yes | Yes | Yes |
Hover a mark to see the quote it is based on. Rows where nothing could be verified are hidden.
Plans
StackAI
Free
500 runs per month · 2 projects · 1 seat
Free
Enterprise
Custom runs · Unlimited projects · On-prem and VPC deployment · SSO
Contact sales
Botpress
Free
100 conversations · 3 seats · 3 AI agents · 1K table rows, 100MB vector, 100MB files
Free
Plus
250 conversations/mo included · $25 AI usage · 3 seats · Unlimited AI agents · Whitelabel webchat
$150/month, billed yearly
Team
1,500 conversations/mo included · $150 AI usage · Unlimited seats · Teams with RBAC · Team analytics
$750/month, billed yearly
Enterprise
Custom conversation volume · Uptime SLA · Voice channel · Custom storage
Contact sales
Usage charges
- Extra conversations (Plus): $65 per pack of 100 conversations
- Extra conversations (Team): $50 per pack of 100 conversations
- Storage add-on (Plus or Team): $40 per month
Dify
Sandbox
200 message credits · 1 Team Member · 5 Apps · 50 Knowledge Documents · 5,000 API Rate Limit/month
Free
Professional
5,000 message credits / month · 3 Team Members · 50 Apps · 500 Knowledge Documents · No Dify API Rate Limit
$590/year per workspace
Team
10,000 message credits / month · 50 Team Members · 200 Apps · 1,000 Knowledge Documents
$1,590/year per workspace
Enterprise
Self-hosted or cloud · Commercial license · Multiple workspaces · SSO
Contact sales
Community Edition (self-hosted)
Open source, deploy with Docker · Single workspace · Dify Open Source License applies
Free
SpideyChat makes a website chat assistant and is listed in this directory alongside other products. We are not affiliated with, sponsored by or endorsed by any other company named here, and their names and trademarks belong to them. Facts are read from each vendor’s own pages on the date shown and can change; check the vendor’s site before you buy. Spotted something out of date? Email support@spideychat.com.