Best Markstream alternatives

Comparison

Tool	Price from	Free plan	Category
Markstream	not listed	?	Chatbots & AI assistants
Grok	30 USD/mo	yes	Chatbots & AI assistants
DeepSeek	0.02 USD	?	Chatbots & AI assistants
Open WebUI	not listed	yes	Chatbots & AI assistants
ChatGPT	34,99 PLN/mo	yes	Chatbots & AI assistants
Microsoft Copilot	27.73 EUR/mo	trial	Chatbots & AI assistants
Claude	17 USD/mo	yes	Chatbots & AI assistants
Google AI	not listed	?	Chatbots & AI assistants
Bielik	not listed	yes	Chatbots & AI assistants

Each alternative in short

1. Grok

Frontier AI models from SpaceXAI for chat, code, voice, images and video, available via apps, X and a developer API.

Yes, there is a free plan. Free plan gives access to Grok within generous limits, including voice mode, connectors and real-time web and X search, with limited Grok Bot and Expert features.

2. DeepSeek

Chinese AI lab offering open-source large language models (DeepSeek-V4, R1) via a chat app, web interface and developer API.

The vendor does not state this clearly on the homepage or pricing page.

3. Open WebUI

Self-hosted AI chat interface that connects local and cloud models, with Python extensions, for individuals and organizations that want to keep control of their data.

Yes, there is a free plan. The open-source platform can be installed for free with pip or Docker, with no account required.

4. ChatGPT

AI assistant for chatting, research, image creation, file analysis, and coding, for individuals and teams.

Yes, there is a free plan. Free plan includes unlimited text chats subject to abuse guardrails, with limited messages with uploads, limited image creation, limited voice chats, limited deep research, limited memory and context, limited Codex access, and limited ChatGPT Work access on desktop.

5. Microsoft Copilot

AI chat assistant from Microsoft for creating, brainstorming, learning and solving everyday problems, with a Microsoft 365 Copilot tier for work.

There is a free trial. Free trial offered for the Microsoft 365 Business Premium with Copilot plan (terms linked on the page). The free tier of the basic chat is not described in the provided text.

6. Claude

AI assistant by Anthropic for chat, writing, coding and research, used by individuals and teams.

Yes, there is a free plan. Free plan: chat on web and apps, code generation and data visualization, writing, web search, memory, file creation and code execution, desktop extensions, connectors, extended thinking. Limited use, no payment required.

7. Google AI

Google's hub for AI products, developer tools, research and responsibility efforts, aimed at general users, businesses and developers.

The vendor does not state this clearly on the homepage or pricing page.

8. Bielik

Open-source Polish-focused language model family for businesses, public bodies and individuals who need local, sovereign AI.

Yes, there is a free plan. Free public chat at chat.bielik.ai and free open model download under Apache 2.0 license with commercial rights.

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