01 Microsoft Copilot
Microsoft's GPT-5-powered AI assistant for chat, search, and AI inside Word, Excel, and Teams
AI Chatbots from $0 free tier: yes Verified JUN 22, 2026
Onyx alternatives
5 alternatives compared · prices last verified Jul 18, 2026 · how we verify
Microsoft Copilot is the top Onyx alternative in our directory: it covers the same category (AI Chatbots), starts at $0, and has a free tier. All 5 alternatives below are compared on pricing verified against the official pricing pages, on the dates shown.
Ranked by category overlap with Onyx, free-tier availability, then lowest verified starting price — computed from our verified data, never sponsorships.
Onyx alternatives compared
| Alternative | Category | Starting price | Free tier | Price verified |
|---|---|---|---|---|
| Microsoft Copilot | AI Chatbots | $0 | yes | Jun 22, 2026 |
| Open WebUI | AI Chatbots | $0 | yes | Jul 18, 2026 |
| ChatGPT | AI Chatbots | $8/mo | yes | Jun 11, 2026 |
| Glean | AI Search & Research | Custom | no | Jul 12, 2026 |
| Dust | AI Agents & Automation | $30/seat/mo | yes | Jul 18, 2026 |
Each alternative, in brief
02 Open WebUI
Self-hosted web interface for local and API-based LLMs, free for unlimited users as long as the branding stays intact
AI Chatbots from $0 free tier: yes Verified JUL 18, 2026
03 ChatGPT
Conversational AI assistant by OpenAI with multimodal reasoning, voice, and agent capabilities
AI Chatbots from $8/mo free tier: yes Verified JUN 11, 2026
04 Glean
Enterprise Work AI platform unifying AI search, an assistant, and agents over a permission-aware company knowledge graph
AI Search & Research from Custom free tier: no Verified JUL 12, 2026
05 Dust
Enterprise platform for building and deploying AI agents connected to company data, tools, and workflows
AI Agents & Automation from $30/seat/mo free tier: yes Verified JUL 18, 2026
When to stay with Onyx
Documented strengths from our Onyx review — switching isn't always the right call:
- Self-hosting is genuinely free and unmetered — the MIT core carries no seat cap
- Permission inheritance means search results respect the access rules of the source systems, not a flat index
- Model-agnostic: you choose the LLM provider rather than being tied to the vendor's own model