Function-Calling

Apr 2, 2026 LLM Engineering 34 min read

LLM Engineering (7): Function Calling and Tool Use

JSON-mode vs function-mode vs free-form, parallel tool calls, structured-output guarantees with grammars, error recovery patterns, and the agent loops that survive contact with reality.

Feb 26, 2026 Aliyun Bailian 12 min read

Aliyun Bailian (2): The Qwen LLM API in Production

Picking a Qwen variant by latency and cost, function calling done right, JSON mode without tears, and the enable_thinking + streaming requirement that the docs gloss over.