Best Alternatives to Abacus.AI
ChatLLM gives you GPT, Claude, Gemini, Grok, DeepSeek and 20+ models under one $10/month subscription. There is no free ChatLLM tier — the free developer tier belongs to the separate Abacus.AI ML platform. Our comprehensive comparison helps you find the perfect AI Agents alternative based on pricing, features, privacy, and workflow requirements. We've hand-picked the top-rated tools with strong free tiers and proven user satisfaction.
Quick Comparison
| Tool | Pricing | Best For |
|---|---|---|
| Poe | freemium | Quora Poe = GPT-4/Claude/Gemini all-in-one. FREE daily limit... |
| Onfido | freemium | Onfido is now part of Entrust: onfido.com redirects to Entru... |
| CustomGPT | free-trial | Build GPT-4 powered AI chatbots trained on your own document... |
| Sider | freemium | A Chrome sidebar for chatting with GPT, Claude, Gemini and o... |
| Ninja AI | freemium | Ninja AI provides access to 20+ AI models including GPT-5.2,... |
Poe
Quora Poe = GPT-4/Claude/Gemini all-in-one. FREE daily limits + $19.99/mo unlimited + create custom bots.
Onfido
Onfido is now part of Entrust: onfido.com redirects to Entrust identity verification. The AI KYC capability - document, selfie and biometric checks - continues under Entrust branding.
CustomGPT
Build GPT-4 powered AI chatbots trained on your own documents and website with no code, anti-hallucination technology, and enterprise-grade data privacy.
Sider
A Chrome sidebar for chatting with GPT, Claude, Gemini and other models on any webpage, and for summarising, translating and writing without switching tabs. Free daily credits; paid plans add more.
Ninja AI
Ninja AI provides access to 20+ AI models including GPT-5.2, Claude, and Gemini alongside autonomous agent automation for research, coding, and content tasks.
Thomson Reuters
Westlaw legal research + Checkpoint tax/accounting + Reuters news. Enterprise pricing consultation. Lawyers/accountants essential.