OpenAI's structured output format for model-tool interaction. JSON schema-based function definitions enable reliable tool use. Adopted by most LLM API providers.
Metrics
Organization
OpenAI
Radar Status
adopt
ThoughtWorks Technology Radar assessment
Framework Type
protocol
Primary framework purpose
Protocol Status
stable
Score Breakdown
adoption
30%94
Community size, growth velocity, and industry usage
ecosystem
25%80
Integrations, plugins, and extension availability
performance
30%90
Execution speed, latency, and resource efficiency