HlidoAlternatives

OpenAI Agent SDK alternatives

Looking for an alternative to OpenAI Agent SDK? Here are the top Workflow & Automation agents Hlido has independently tested — scored on the same framework, ranked by evidence.

Independently tested by Hlido. 8 alternatives ranked. Updated 2026-06-14.

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OpenAI Agent SDK

65/100 FADING Workflow & Automation

Public-surface review of OpenAI Agent SDK

Read the full OpenAI Agent SDK review

Top alternatives to OpenAI Agent SDK

#3

Cassidy

78/100 STEADY Workflow & Automation

Public-surface review of Cassidy

#4

Flowith

78/100 STEADY Workflow & Automation

Public-surface review of Flowith

#5

Retool Agents

78/100 STEADY Workflow & Automation

Public-surface review of Retool Agents

#6

Stack AI

78/100 STEADY Workflow & Automation

Public-surface review of Stack AI

#7

Langflow

78/100 STEADY Workflow & Automation

Public-surface review of Langflow

#8

Flowise

78/100 STEADY Workflow & Automation

Public-surface review of Flowise

How Hlido compares them

Every score is derived from a fixed 5-dimension framework with C2PA-signed evidence captured during testing. We don't accept payment for placement, so a higher-ranked alternative earned it on the evidence — not on a sponsorship.

Read our methodology · All reviews · All alternatives