Ranked · Agent platforms
Best Agent platforms — Open models
12 of 20 researched agent platforms have a confirmed yes for Open models. Qualified, negative, and unknown answers stay distinct.
The ranking
12 of 20 agent platforms have a confirmed yes for “Open models”. 4 are qualified or tier-scoped, 1 are confirmed no, and 3 remain not established. Only confirmed yes answers appear in this set; an unknown is never treated as a negative.
How we ranked these
Projected from the live listing datasheets using the tenant’s “Can it run open-weight models?” axis. Membership requires a sourced yes; partial and unknown answers are reported above but excluded from the ranking. Entries retain the directory’s paid-tier ordering, visibly labelled on every promoted card.
All picks at a glance
All 12 compared on one screen. Pick a row to jump to the full entry.
The ranking
Editor’s pick
#1
Agno
Python SDK, self-hosted AgentOS runtime and hosted control plane for building and running agents
- #2

Botpress
Build, deploy and run AI agents from a visual studio, a TypeScript ADK, or a chat-based builder.
- #3

Dify
Open-source platform for building agentic workflows, RAG pipelines and agents, on cloud or self-hosted
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ElevenLabs ElevenAgents
Voice and chat agent platform built on ElevenLabs speech models, deployed to web, mobile and telephony.
- #5

Glean
Enterprise Work AI platform: indexes company apps into a permission-aware graph and runs agents on that context.
- #7

n8n
Workflow automation platform for building AI agents on a visual canvas, self-hosted or on n8n Cloud.
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Your agent here. Go Featured and sit above the free listings in this ranking, or buy the slot beside it. Every paid unit and every paid row wears the Advertisement label above — and the verdict, the facts, the exclusions and the quality gate are not for sale.
Get featured · top of your category →- #8

OpenClaw
Self-hosted, MIT-licensed gateway that runs AI agents across chat apps, a browser UI, and the terminal.
- #10

Sierra
Conversational AI platform for customer-facing agents across voice, chat, email and messaging, priced per outcome.
- #11

Sim
Open-source AI workspace for building, deploying and governing AI agents across 1,000+ integrations.
- #12

Vellum
Personal AI assistant with its own identity, memory and installable skills; open-source runtime, cloud or self-hosted
Side by side
All 12 compared. Scroll the table sideways, the fact column stays pinned →
| Feature | Agno | Botpress | Dify | ElevenLabs ElevenAgents | Glean | MindStudio | n8n | OpenClaw | Relevance AI | Sierra | Sim | Vellum |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Description | Python SDK, self-hosted AgentOS runtime and hosted control plane for building and running agents | Build, deploy and run AI agents from a visual studio, a TypeScript ADK, or a chat-based builder. | Open-source platform for building agentic workflows, RAG pipelines and agents, on cloud or self-hosted | Voice and chat agent platform built on ElevenLabs speech models, deployed to web, mobile and telephony. | Enterprise Work AI platform: indexes company apps into a permission-aware graph and runs agents on that context. | Visual builder for AI agents, with a typed SDK, CLI and MCP server over 200+ models | Workflow automation platform for building AI agents on a visual canvas, self-hosted or on n8n Cloud. | Self-hosted, MIT-licensed gateway that runs AI agents across chat apps, a browser UI, and the terminal. | Enterprise platform for building, running and governing teams of specialist AI agents | Conversational AI platform for customer-facing agents across voice, chat, email and messaging, priced per outcome. | Open-source AI workspace for building, deploying and governing AI agents across 1,000+ integrations. | Personal AI assistant with its own identity, memory and installable skills; open-source runtime, cloud or self-hosted |
| Category | Agent platforms, Agent frameworks | Agent platforms | Agent platforms | Agent platforms, Voice agents | Agent platforms | Agent platforms | Agent platforms | Agent platforms | Agent platforms | Agent platforms, Support agents | Agent platforms | Agent platforms |
| Pricing | Free | $0 | Free | $0 / mo | Custom | $0 / month | Free | $20 trial credit / monthly | $0/month | Custom | $0 / forever | $0 / month |
| API | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes |
| Tags |
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This ranking
- 12 agents ranked
- 11 of 11 with known API status offer an API
- paid plans $6-$150
- 8 free or freemium
- verified August 31, 2026
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