Comparison
88Agents vs ChatFast vs SiteGPT (2026)
Comparing three AI chatbot platforms across 48 features. 88Agents leads ChatFast in 21 features and SiteGPT in 14. 88Agents: AI chatbot and agent platform built for agencies. Bring your own API keys, deploy across web, Slack, and email from one dashboard. ChatFast: Lightweight AI chatbot builder for small businesses focused on answering customer questions, capturing leads, and scheduling appointments with minimal setup. SiteGPT: AI chatbot trained on your website content that delivers automated, personalized responses to visitor inquiries.
Quick Verdict
88Agents leads overall with 21 feature advantages to ChatFast's 0.
88Agents leads overall with 14 feature advantages to SiteGPT's 0.
- 88Agents offers 8 more advanced features features: Alternative LLMs, Bring Your Own Key (BYOK), GDPR Compliance, Team Management, Auto Resync, Show Sources, MCP Support, Agent Mode
- 88Agents offers 6 more training sources features: Sitemap, YouTube Transcripts, S3 Buckets, HTTP File Sources, Custom APIs, Datasets (CSV/JSON)
- 88Agents offers 3 more customization features: Input Placeholder, Bubble Text, Launcher Icon
- 88Agents offers 6 more advanced features features: Alternative LLMs, Bring Your Own Key (BYOK), Fine-Tuning, Show Sources, MCP Support, Agent Mode
- 88Agents offers 4 more training sources features: S3 Buckets, HTTP File Sources, FAQs, Datasets (CSV/JSON)
- 88Agents offers 2 more core capabilities features: Analytics, Human Handover
Feature Comparison
| Core Capabilities | 88Agents | ChatFast | SiteGPT |
|---|---|---|---|
| Conversation History View and search past conversations between users and the chatbot. | ✓ | ✓ | ✓ |
| Smart Prompts System-level instructions that shape how the chatbot responds, its tone, and behavior. | ✓ | ✓ | ✓ |
| Multilingual Support Automatically detect and respond in multiple languages via the underlying LLM. | ✓ | ✓ | ✓ |
| Model Switching Switch between different AI models (e.g., GPT-4, Claude) without rebuilding. | ✓ | ✓ | ✓ |
| Analytics Dashboards and reports on conversation volume, resolution rates, and user satisfaction. | ✓ | ✓ | ✗ |
| Lead Capture Collect visitor contact details (name, email, phone) during conversations. | ✓ | ✓ | ✓ |
| Human Handover Seamlessly transfer a live conversation to a human support agent. | ✓ | ✗ | ✗ |
| Human Escalation Flag conversations for human review when the chatbot can't resolve them. | ✓ | ✗ | ✓ |
| Advanced Features | 88Agents | ChatFast | SiteGPT |
| Alternative LLMs Choose from multiple LLM providers beyond just OpenAI (Anthropic, Google, etc.). | ✓ | ✗ | ✗ |
| Bring Your Own Key (BYOK) Use your own API keys so you pay providers directly — no markup or middleman. | ✓ | ✗ | ✗ |
| Fine-Tuning Tune retrieval and response quality — vector store settings, embeddings, chunk size, overlap, and dimensions. | ✓ | ✓ | ✗ |
| GDPR Compliance Data processing and storage practices compliant with EU privacy regulations. | ✓ | ? | ✓ |
| Team Management Invite team members with role-based access control and permissions. | ✓ | ? | ✓ |
| Auto Resync Automatically re-crawl and update knowledge sources on a schedule. | ✓ | ✗ | ✓ Paid |
| Show Sources Display citations and source links alongside chatbot responses. | ✓ | ✗ | ✗ |
| MCP Support Connect to external tools and APIs via the Model Context Protocol for agentic workflows. | ✓ | ✗ | ✗ |
| Agent Mode Go beyond Q&A — run multi-step workflows, use tools, and take actions autonomously. | ✓ | ✗ | ✗ |
| Training Sources | 88Agents | ChatFast | SiteGPT |
| Files (PDF, DOCX) Upload documents like PDFs, Word files, and text files as knowledge sources. | ✓ | ✓ | ✓ |
| Website URLs Crawl web pages and use their content to train the chatbot. | ✓ | ✓ | ✓ |
| Sitemap Import an entire site structure via sitemap.xml for bulk crawling. | ✓ | ✗ | ✓ |
| Plain Text Paste or upload raw text content directly as a knowledge source. | ✓ | ✓ | ✓ |
| YouTube Transcripts Extract and index video transcripts from YouTube as training data. | ✓ | ✗ | ✓ |
| Notion Connect a Notion workspace and sync pages as knowledge sources. | ✗ | ✗ | ✗ |
| Google Drive Import documents directly from Google Drive. | ✗ | ✗ | ✗ |
| Dropbox Import documents directly from Dropbox. | ✗ | ✗ | ✗ |
| S3 Buckets Connect an Amazon S3 bucket and sync files directly as knowledge sources. | ✓ | ✗ | ✗ |
| HTTP File Sources Import files from any public or authenticated URL as a knowledge source. | ✓ | ✗ | ✗ |
| Custom APIs Pull data from your own APIs or third-party services as knowledge sources. | ✓ | ✗ | ✓ |
| E-commerce Integration Connect product catalogs from Shopify, WooCommerce, or similar platforms. | ✗ | ✗ | ✗ |
| Databases Query structured databases directly as a knowledge source. | ✗ | ✗ | ✗ |
| FAQs Import structured question-and-answer pairs for precise, curated responses. | ✓ | ✓ | ✗ |
| Datasets (CSV/JSON) Upload structured data like product catalogs, inventory, or any tabular data as a knowledge source. | ✓ | ✗ | ✗ |
| Channels | 88Agents | ChatFast | SiteGPT |
| Website Widget Embed a chat bubble on your website with a simple code snippet. | ✓ | ✓ | ✓ |
| Chatbot API Programmatic access to send messages and receive responses via REST API. | ✓ | ✓ Paid | ✓ Paid |
| Slack Deploy the chatbot as a Slack app for DMs, channels, and threads. | ✓ | ✗ | ✗ |
| WhatsApp Connect to WhatsApp Business for customer messaging. | ✗ | ✗ | ✗ |
| Telegram Deploy as a Telegram bot for direct and group messaging. | ✗ | ✗ | ✗ |
| Email Respond to incoming emails via IMAP/SMTP integration. | ✓ | ✗ | ✗ |
| Instagram Respond to Instagram DMs automatically. | ✗ | ✗ | ✗ |
| Facebook Messenger Connect to Facebook Messenger for customer conversations. | ✗ | ✗ | ✗ |
| Microsoft Teams Deploy as a Microsoft Teams app for internal or external use. | ✗ | ✗ | ✗ |
| Zapier Connect to thousands of apps via Zapier for automated workflows. | ✗ | ✗ | ✗ |
| Customization | 88Agents | ChatFast | SiteGPT |
| Brand Colors Match the chatbot widget to your brand's color palette. | ✓ | ✓ | ✓ |
| Welcome Message Set a custom greeting shown when the chat opens. | ✓ | ✓ | ✓ |
| Input Placeholder Customize the placeholder text in the message input field. | ✓ | ? | ✓ |
| Bubble Text Add a text label next to the chat bubble launcher. | ✓ | ✗ | ✓ |
| Launcher Icon Replace the default chat icon with a custom image or avatar. | ✓ | ? | ✓ |
| Custom Personality & Tone Define the chatbot's voice, personality traits, and communication style. | ✓ | ✓ | ✓ |
Pricing Comparison
88Agents
Free tier available
Free Free
5 agents10 MB storage100 chats/mo3 team members
Starter $29/mo
25 agents1 GB storageUnlimited chats5 team members
Pro $99/mo
100 agents10 GB storageUnlimited chats25 team members
Expert $399/mo
250 agents100 GB storageUnlimited chats100 team members
ChatFast
Free tier available
Free Free
1 chatbot15 messages/day100,000 chars training
Basic $29/mo
5 chatbots2,000 messages/mo2M chars training
Premium $89/mo
8 chatbots8,000 messages/mo7M chars training
Elite $289/mo
15 chatbots30,000 messages/mo15M chars training
SiteGPT
No free tier
Starter $39/mo
1 chatbot4,000 messages/mo1,000 pages1 team member
Growth $79/mo
2 chatbots10,000 messages/mo10,000 pages4 team members
Scale $259/mo
3 chatbots40,000 messages/mo50,000 pages10 team members
About Each Platform
88Agents
AI chatbot and agent platform built for agencies. Bring your own API keys, deploy across web, Slack, and email from one dashboard.
- Bring Your Own Keys: Use your own OpenAI, Anthropic, or Google Gemini API keys. Pay providers directly with zero markup.
- Chatbots to Agents: Start with a simple FAQ chatbot, scale into autonomous agents with MCP tool use and multi-step workflows.
- Multi-Channel Deployment: Deploy the same agent across web widget, Slack, and email from a single configuration.
- Rich Knowledge Sources: Train on documents, websites, YouTube transcripts, CSV datasets, FAQs, and more with automatic syncing.
- Multi-Tenant Workspaces: Organize by client or project with isolated settings, API keys, and role-based team access.
ChatFast
Lightweight AI chatbot builder for small businesses focused on answering customer questions, capturing leads, and scheduling appointments with minimal setup.
- Lead Capture & Analytics: Collects visitor names, emails, and phone numbers during conversations and provides insights into why visitors are reaching out.
- Multi-Source Training: Train your chatbot on PDFs, website URLs, and plain text to build a comprehensive knowledge base without technical expertise.
- Multilingual Support: Understands and responds in 95+ languages, automatically matching the language of the visitor's question.
- Custom Q&A Overrides: Add specific question-and-answer pairs to guide the chatbot's responses on critical topics beyond its training data.
- Embeddable Widget & API: Deploy via website widget or iframe embed, with API access available on paid plans for custom integrations.
SiteGPT
AI chatbot trained on your website content that delivers automated, personalized responses to visitor inquiries.
- Personalized Onboarding: Guided setup process helps you configure the chatbot to match your brand voice and information architecture from day one.
- 95+ Language Support: Built-in multilingual capabilities remove language barriers between your products and a global audience.
- Helpdesk Integrations: Connects seamlessly with Crisp, Intercom, and Zendesk to extend your existing support stack without replacing it.
- YouTube Training: Train your chatbot on YouTube videos, playlists, and entire channels in addition to website content and documents.
- SOC 2 & GDPR Compliant: Enterprise-grade security with SOC 2 Type II certification, GDPR compliance, and HIPAA assessment.
Individual Comparisons
Last reviewed: March 2026
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