AI assistants and agents with a free plan that can carry out tasks: desktop apps, agent modes, browsing and connected tools. Grok Bot itself is included on the Premium, Super and Ultra plans of The X Subscription; the Plus plan does not include it, per the vendor's documentation (docs.x.ai/x-subscription/grok-bot). Each entry below is taken from the vendor's own pricing page.
7 listings · facts checked on official pages, latest 2026-10-26. Plans change; confirm on the vendor's site.
Unlimited text chats with GPT-6 (subject to abuse guardrails); limited uploads, image creation, voice, deep research and Codex, limited ChatGPT Work access on the desktop app, and the built-in browser.
How to get it
Sign up for free at chatgpt.com.
What it requires
A free ChatGPT account.
The catch
Heavier features are capped at unstated limits; the paid Go tier may include ads.
Claude chat on web, desktop and mobile with web search, file creation, code execution, memory, connectors, Artifacts, and Claude Design, Slides and Docs.
How to get it
Sign up at claude.ai, $0 plan.
What it requires
A Claude account; the pricing table lists no credit card for Free.
The catch
Usage limits are not published (they reset on a rolling five-hour window); Claude Code, Claude in Chrome, Opus models and Research are not included on Free.
Mistral's assistant (called Vibe on the pricing page) on web and mobile with limited messages, web searches and coding sessions, basic image generation and editing, and 100+ connectors.
How to get it
Start now at chat.mistral.ai.
The catch
Caps are not given as numbers; Pro offers up to 6x more messages, 5x more web searches and 40x more image generations.