Qwen: Qwen3 4B

Qwen3-4B is a 4 billion parameter dense language model from the Qwen3 series, designed to support both general-purpose and reasoning-intensive tasks. It introduces a dual-mode architecture—thinking and non-thinking—allowing dynamic switching between high-precision logical reasoning and efficient dialogue generation. This makes it well-suited for multi-turn chat, instruction following, and complex agent workflows.

• Context window: 128,000 tokens
• Input: text
• Output: text

View on OpenRouter. Model data sourced from OpenRouter.