DeepInfra has introduced "JSON mode" across its text language models, allowing for outputs that conform to valid JSON without any performance overhead. This feature is activated by setting the "response_format" parameter to {"type": "json_object"} in various text APIs and is available for free on all models. JSON mode is designed to produce concise, data-driven responses, skipping unnecessary text, and is particularly suited for structured data requests such as dates or lists. However, it may result in the models generating information if they lack the necessary details to answer a query accurately. This enhancement is part of DeepInfra's efforts to improve language model functionality, and feedback is encouraged to further refine the capability.