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Introducing Respan Router

OpenAI Agents SDK vs Smolagents (2026)

Updated March 10, 2026

vs

Overview

Rating
10.0 / 10
Rating
10.0 / 10
Product Summary

The OpenAI Agents SDK is a lightweight Python framework for building multi-agent workflows with built-in tracing and guardrails. It provides primitives for defining agents with instructions and tools, orchestrating handoffs between agents, and implementing input/output guardrails for safety.

Product Summary

Smolagents is Hugging Face minimalist agent framework for building AI agents with code-based actions.

Starting Price
Free
Starting Price
$0Per month
Free Trial
Yes
Free Trial
Yes
Free Version
Yes
Free Version
Yes
Website

Strengths and tradeoffs

What each tool does well, and the limitations to keep in mind.

OpenAI Agents SDKOpenAI Agents SDK

Pros

  • Completely free and open-source SDK
  • Lightweight architecture with minimal learning curve
  • Production-ready from launch with proven enterprise adoption
  • Handles 80 percent of use cases without complexity

Cons

  • API usage costs can escalate quickly with complex agent workflows
  • Less suitable for workflows requiring deep customization
  • Tightly coupled to OpenAI ecosystem
  • Simpler than LangGraph which may limit advanced use cases
SmolagentsSmolagents

Pros

  • Production-ready platform
  • Good performance
  • Active development
  • Strong features

Cons

  • Enterprise pricing varies
  • Setup complexity
  • Learning curve required

Compare OpenAI Agents SDK and Smolagents on your own traffic

10KFree traces/mo
1,000+Models
5 minSetup

Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.

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Frequently Asked Questions

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