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Qwen 3 Coder
FreeCodeCode
Qwen 3 Coder is Alibaba's open-source AI coding model optimized for agentic software engineering. It supports a native 256K token context window (extendable to 1M tokens), enabling it to process vast codebases in a single session. Qwen 3 Coder scored 44.3% on SWE-Bench Pro and powers the Qwen Code CLI agent for terminal-based development.