Stay free if you only need mit license for commercial use and full python and typescript sdks. Upgrade if you need strong reasoning and multimodal capabilities and 128k context window. Most solo builders can start free.
Why it matters: Best experience is with OpenAI models—non-OpenAI provider support exists but is less polished
Available from: GPT-4o-mini API Usage
Why it matters: API costs can escalate quickly for high-volume agent workloads, especially with o3
Available from: GPT-4o-mini API Usage
Why it matters: Newer framework with a smaller community and ecosystem compared to LangChain or CrewAI
Available from: GPT-4o-mini API Usage
The free plan covers basic ai agent builders needs. For professional use with advanced features and higher limits, consider upgrading to a paid plan.
Check the comparison above for the most affordable paid tier that includes premium features beyond the free plan limitations.
Many tools offer free trials of paid tiers. Visit OpenAI Agents SDK's website to check current trial offerings and duration.
Most tools allow downgrades, but you may lose access to paid features and data. Check OpenAI Agents SDK's policy before upgrading.
Start with the free plan — upgrade when you need more.
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Last verified March 2026