Qwen3 Coder, An Open-Weight Agentic Coding Model

Qwen3 Coder is a new 405B-parameter AI coding model that activates only 35B parameters per token. The model achieves impressive performance on coding benchmarks (69.6% on SWE-bench with 500 turns) and features a massive 256K token context window extendable to 1M. A smaller 30B variant runs on a single H100 GPU, making this powerful coding assistant more accessible to developers.