Compare AI tools

	Fathom S	Manus S	Claude Agent SDK S	ChatGPT Operator B
Tagline	Meeting notes, free forever for individuals.	Autonomous AI agent that actually finishes tasks.	Anthropic's SDK for building your own agents on Claude.	OpenAI's browser agent. Clicks and types on websites for you.
Category	Meetings	Agents	Agents	Agents
Pricing	Free for individuals + $15-$29/user/mo teams	Free tier + $39-$199/mo	API usage + SDK is free	Included with ChatGPT Pro $200/mo
Best for	Solo operators, freelancers, small teams on a budget.	People who want to hand off tasks entirely — trip planning, research, spreadsheet building.	Developers building custom agents for their own company/product.	Power users willing to pay $200/mo for a browser bot.
Strengths	Unlimited free tier for solo use Strong summaries + action items Works in Zoom, Meet, Teams	General-purpose agent — research, book, build, analyze Parallel task execution Web browsing + file creation + coding	Production-grade agent primitives Built on Claude (best reasoning) Full control — build exactly what you need	Actually uses websites — fills forms, clicks, checks out Built into ChatGPT Good for repetitive web tasks
Weaknesses	Bot-joining model Team features gated	Still hit-or-miss on complex multi-hour tasks Can burn credits fast	Developer-only You build the UI	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate
Kai's verdict	S-tier for solo + free. The best free option, hands down.	S-tier in the agent category. The first one I'd give to a non-technical friend.	S-tier for builders. The right primitives. What Kai is built on under the hood.	B-tier. Still early. Manus is more flexible for less money.
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