The 4 best general-purpose AI agents (2026)
As of October 2026, Manus has the lowest paid entry price here, from $20/month. Genspark, OpenClaw and Vellum have a free plan.
Prices checked 21 September–24 October 2026
Reviewed by The Agents Index editorial team.
The ones whose price, API, docs, sources and limits we could confirm come first. How we rank →
All General-purpose AI agents
This spot is open
Featured agents show here and first on related and alternatives pages.
- API access: Not stated
- Free tier: Not stated
- MCP server: Not stated
- Own API key: Not stated
- Open source: Not stated
- Self-hosted: Not stated
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4 agents in General-purpose AI agents
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No agent meets every filter.
Agents that plan and carry out open-ended tasks on their own, with a browser, a computer or your apps.
Questions buyers ask
Which agent here costs the least?
Genspark, OpenClaw and Vellum have a free plan. The lowest paid plan is Manus, from $20/month. Price checked on 24 October 2026.
Which agents here have a free plan?
3 of the 4: Genspark, OpenClaw and Vellum.
When were these prices checked?
Between 21 September 2026 and 24 October 2026, each read on the maker's own pricing page.
Sources and method
Every price here was read on the maker's own pricing page.
- Genspark: genspark.ai/helpcenter/team-enterprise-plans, checked 18 October 2026
- Manus: manus.im/pricing, checked 24 October 2026
- OpenClaw: openclaw.ai, checked 21 September 2026
- Vellum: vellum.ai/pricing, checked 24 October 2026