Qwen3.5-4B-Instruct
Qwen3.5-4B-Instruct is a released long context and vision model with open-source and 256k context; evaluate it while provider pricing coverage matures.
Use it for
- Teams evaluating long context and vision
- Workloads that can use a 256k context window
Do not use it for
- Cost-sensitive launches that need sourced token pricing
- Strict JSON or tool-calling flows
- Teams that need a tracked hosted API route today
- Family
- Qwen3.5
- Released
- 2025-11-12
- Context
- 256k
- Parameters
- 4B
- Specialization
- general
- Openness
- Open source
- License
- Apache 2.0OSI-approvedCommercial use: permitted
- Weights
- Unknown
- Code
- Unknown
No tracked provider token pricing is available yet.
About
Instruction-tuned 4B model in Qwen3.5 series, designed for efficient edge deployment and long-context tasks.
Qwen3.5-4B-Instruct is an open-source model in the Qwen3.5 family. The structured metadata tracks a 256k-token context window and multimodal input. No headline benchmark score is tracked for Qwen3.5-4B-Instruct yet.
Top use-case fit
Long context
Included by capability and metadata signals in the decision map.
Vision
Included by capability and metadata signals in the decision map.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Capabilities
Benchmark peer barsfor Long context
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
Frequently asked questions
What is the context window of Qwen3.5-4B-Instruct?
Qwen3.5-4B-Instruct has a context window of 256k tokens.
When was Qwen3.5-4B-Instruct released?
Qwen3.5-4B-Instruct was released on 2025-11-12.