Qwen3.5 Plus 2026-04-20

What is Qwen3.5 Plus 2026-04-20?

Qwen3.5 Plus (April 2026) is a large-scale multimodal language model from Alibaba. It accepts text, image, and video input and produces text output, with a 1M token context window. This...

Specifications

• Developer: Alibaba (Qwen)
• Context window: 1M tokens
• Max output: 65.5K tokens
• Input modalities: text, image, video
• Output modalities: text
• Input price: $0.3000 per 1M tokens
• Output price: $1.80 per 1M tokens
• Knowledge cutoff: —
• Supported parameters: include_reasoning, max_tokens, presence_penalty, reasoning, response_format, seed, structured_outputs, temperature, tool_choice, tools, top_p

Use Qwen3.5 Plus 2026-04-20 with PromptLayer

PromptLayer lets teams manage, evaluate, and observe prompts that run on Qwen3.5 Plus 2026-04-20 alongside every other model in their stack. Version prompts, run evals across models, and ship safe rollouts from the same dashboard.

Ready to try it yourself? Sign up for PromptLayer and start managing your prompts in minutes.