AI Agent Builders

Agno vs Sim

Compare Agno and Sim side-by-side. See feature differences and pricing in the AI Agent Builders category.

by Agno

No reviews yet

Pricing: Free plan with a local control plane; Pro $150 a month billed monthly for 3 seats and 1 live connection; extra seat $30, connection $95; Enterprise by quote.

Agno is an open-source AI agent platform: a Python SDK, a self-hosted AgentOS runtime and a control plane, for engineering teams shipping agents to production.

17 /18 features Full profile

Sim

by Sim

No reviews yet

Pricing: Free plan; Pro $25 and Max $100 per user a month billed monthly ($21 and $85 billed annually); Enterprise by quote.

Sim is an open-source AI agent builder for teams that design agent workflows on a visual canvas and run them in its cloud or on their own servers.

16 /18 features Full profile

Feature Comparison

AI Agent Builders features side-by-side

Feature	Agno 17/18 features	Sim 16/18 features
Visual agent workflow canvas Assemble the agent's steps on a canvas.	Yes	Yes
Custom tool and function definitions Give the agent your own callable functions.	Yes	Yes
Model provider choice per agent Point different agents at different models.	Yes	Yes
Retrieval-augmented knowledge bases Attach documents the agent retrieves from at run time.	Yes	Yes
Multi-agent handoff and delegation One agent passes work to another.	Yes	Yes
Conversation state and checkpointing Resume a long run instead of restarting it.	Yes	Yes
Structured output schema validation Force replies into a schema and reject the rest.	Yes	Yes
Input and output guardrails Filter unsafe or off-policy content on both sides.	Yes	Yes
Human-in-the-loop approval steps Pause a workflow for a person to approve.	Yes	Yes
Built-in execution tracing See every step, tool call and token inside the builder.	Yes	Yes
Prompt versioning in the builder Change a prompt without redeploying, and roll it back.	Yes	No
Agent evaluation and test suites Score an agent against fixed cases before release.	Yes	No
MCP server support Connect tools over the Model Context Protocol.	Yes	Yes
Webhook and event triggers Start an agent from an external event.	Yes	Yes
Code-first SDK Define the agent in code as well as in the interface.	Yes	Yes
Deploy an agent as an API endpoint Call the finished agent over HTTP.	Yes	Yes
Embeddable agent chat widget Drop the agent into a site or app as a chat surface.	No	Yes
Self-hosted agent runtime Run the built agents on your own infrastructure.	Yes	Yes
Overall Rating	No reviews yet	No reviews yet

Agno 17/18 features

Visual agent workflow canvas: Yes
Custom tool and function definitions: Yes
Model provider choice per agent: Yes
Retrieval-augmented knowledge bases: Yes
Multi-agent handoff and delegation: Yes
Conversation state and checkpointing: Yes
Structured output schema validation: Yes
Input and output guardrails: Yes
Human-in-the-loop approval steps: Yes
Built-in execution tracing: Yes
Prompt versioning in the builder: Yes
Agent evaluation and test suites: Yes
MCP server support: Yes
Webhook and event triggers: Yes
Code-first SDK: Yes
Deploy an agent as an API endpoint: Yes
Embeddable agent chat widget: No
Self-hosted agent runtime: Yes

No reviews yet

Sim 16/18 features

Visual agent workflow canvas: Yes
Custom tool and function definitions: Yes
Model provider choice per agent: Yes
Retrieval-augmented knowledge bases: Yes
Multi-agent handoff and delegation: Yes
Conversation state and checkpointing: Yes
Structured output schema validation: Yes
Input and output guardrails: Yes
Human-in-the-loop approval steps: Yes
Built-in execution tracing: Yes
Prompt versioning in the builder: No
Agent evaluation and test suites: No
MCP server support: Yes
Webhook and event triggers: Yes
Code-first SDK: Yes
Deploy an agent as an API endpoint: Yes
Embeddable agent chat widget: Yes
Self-hosted agent runtime: Yes

No reviews yet

Pricing

Agno

Free plan with a local control plane; Pro $150 a month billed monthly for 3 seats and 1 live connection; extra seat $30, connection $95; Enterprise by quote.

See all plans

Sim

Free plan; Pro $25 and Max $100 per user a month billed monthly ($21 and $85 billed annually); Enterprise by quote.

See all plans

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