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Qwen Released April 30, 2025 Synced Mar 29, 2026

Qwen: Qwen3 4B (free)

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.

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Why it stands out

Combines tool use with reasoning — a strong baseline for agentic and multi-step workflows.
$0/M input makes it practical for always-on agents, batch processing, or high-volume classification.

What to watch

Text-only input — image or audio workflows require a separate model in the pipeline.
41K context window is shorter than the longest-context frontier models available today.
No benchmark score currently tracked — evaluate using task-specific testing alongside pricing and capability data.

Release timeline

Tracked events for Qwen: Qwen3 4B (free).

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release

Qwen: Qwen3 4B (free) entered the tracked catalog

April 30, 2025

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.

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Recent changes

LaunchApr 30

Qwen launched Qwen: Qwen3 4B (free)

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