Claude Agent SDK vs OpenAI Agents SDK (Python)

Claude Agent SDK

Agents

OpenAI Agents SDK (Python)

Agents

Tagline

Claude Agent SDK

Anthropic's official SDK for building autonomous Claude agents.

OpenAI Agents SDK (Python)

A lightweight Python package for building agentic AI applications with minimal abstractions.

Pricing

Claude Agent SDK

Free· Free SDK; API usage billed at Claude rates

OpenAI Agents SDK (Python)

Free· SDK is free and open source (MIT-licensed). Cost is pass-through to whichever model provider you point it at — OpenAI API pricing applies when using GPT models; third-party providers billed separately.

API

Claude Agent SDK

Not listed

OpenAI Agents SDK (Python)

Yes

Platforms

Claude Agent SDK

web

OpenAI Agents SDK (Python)

—

Open source

Claude Agent SDK

Not listed

OpenAI Agents SDK (Python)

Yes

GitHub stars

Claude Agent SDK

2,794

checked 2026-10-29

OpenAI Agents SDK (Python)

—

Last GitHub push

Claude Agent SDK

2026-08-27

OpenAI Agents SDK (Python)

—

First commit

Claude Agent SDK

2025-09

OpenAI Agents SDK (Python)

—

Hacker News stories

Claude Agent SDK

4

checked 2026-10-09

OpenAI Agents SDK (Python)

9

checked 2026-10-17

Company

Claude Agent SDK

Anthropic, Inc.

OpenAI Agents SDK (Python)

—

Model used

Claude Agent SDK

Claude Opus / Sonnet

OpenAI Agents SDK (Python)

GPT-4o / GPT-4.1 / gpt-realtime (provider-pluggable via LiteLLM)

Best for

Claude Agent SDK

Pick the Claude Agent SDK if you're building production agents on Claude and want the cleanest official abstractions.

OpenAI Agents SDK (Python)

—

Not for

Claude Agent SDK

Skip it if you need multi-provider routing or you're not committed to Claude as the primary model.

OpenAI Agents SDK (Python)

—

Editorial score

Claude Agent SDK

8.6 / 10

OpenAI Agents SDK (Python)

—

Use cases

Claude Agent SDK

Claude agentstool useproduction

OpenAI Agents SDK (Python)

Building agents with instructions, tools, guardrails, and handoffsRunning specialist agents inside isolated workspacesBuilding voice agents with automatic interruption detectionCreating voice pipelines combining speech-to-text and text-to-speechMaintaining working context within an agent loop using sessions

Pros

Claude Agent SDK

• Official, well-tested abstractions
• Same primitives as Claude Code
• Strong tool-use ergonomics
• TypeScript + Python SDKs

OpenAI Agents SDK (Python)

• The SDK offers a small set of primitives that makes it quick to learn while retaining enough features for practical use.
• Any Python function can be converted into a tool with automatic schema generation and Pydantic-powered validation.
• Guardrails run input validation and safety checks in parallel with agent execution to fail fast when checks do not pass.
• Built-in tracing supports visualizing, debugging, and monitoring workflows, with integration for OpenAI's evaluation, fine-tuning, and distillation tools.
• The SDK is Python-first, allowing developers to use built-in language features to orchestrate and chain agents without learning new abstractions.

Cons

Claude Agent SDK

• Claude-only
• Newer than LangGraph/CrewAI

OpenAI Agents SDK (Python)

—

Website

Claude Agent SDK

docs.claude.com

OpenAI Agents SDK (Python)

openai.github.io

Editorial score: rule-based, 0–10, from AI-assisted profile inputs (see /methodology) — not a user rating; “—” means unscored. “Not listed” means we have no record of it, not that it is absent. GitHub figures and prices carry the date they were checked or captured; prices are shown as published, unconverted.