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OpenAI AgentKit

Verified

Full-stack toolkit for building, deploying, and monitoring agents on OpenAI models.

4.8· RatingGeneral Purpose· Usage-based

Overview

OpenAI AgentKit bundles the Agents SDK, visual workflow builder, and evaluation tooling into one production path from prototype to deployed agent. Deep integration with GPT models and the Responses API makes it the lowest-friction entry point into agentic systems.

Best for

Teams already on GPT models that want one vendor from model to agent runtime.

Highlights

Tightest possible integration with GPT models
Visual builder plus code-first SDK
Built-in evaluation and tracing

Supported Models

GPT-5GPT-4.1o-seriesCustom fine-tunes

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