Qwen3.5 4B
Qwen/Qwen3.5-4B
Open Source · chat · open-weights
Intelligence
Context
262.1K
Max output
—
Input $/1M
$0.20
Output $/1M
$0.20
Modalities
text · image
Released
27 Feb 2026
Intelligence Index via Artificial Analysis · 0–100, higher is better
License: apache-2.0 · Qwen/Qwen3.5-4B
AI summary
● machine-written
Qwen3.5 4B open-weights multimodal model released February 2026
Qwen3.5 4B is a 4-billion-parameter open-source model supporting text and image inputs, released under Apache 2.0 license. The model supports a 262K token context window and is available through open weights for local deployment and commercial inference providers.
What's new
- Open-weights release enables local deployment and fine-tuning
- 262,144 token context window for extended document processing
- Multimodal support for text and image inputs
- Sub-$1/M pricing available through multiple providers
Best for
Cost-efficient text and image understanding tasksEdge deployment and local inferenceLong-context document processing and retrieval