AI SingaporeSEA-LION v4.5

Qwen-SEA-LION-v4.5-27B-IT

Qwen-SEA-LION-v4.5-27B-IT is a 27-billion-parameter multimodal model based on Qwen3.6-27B. It uses both linear and full attention. AI Singapore distills it from Qwen3.5-397B-A17B using SEA-Instruct-2602 for regional adaptation.

How this release works

The card describes configurable thinking, retained reasoning context and code work across a repository. Its example disables thinking with the chat-template setting enable_thinking=false. It explicitly says the older Qwen3 /no_think text switch does not provide the same control here.Qwen-SEA-LION-v4.5-27B-IT official model card

How to assess it for your work

Practical guidance. Choose this model for a comparison that combines a local-language instruction with an image or a code change. Record the thinking setting as part of each result. This helps distinguish a model-quality difference from a configuration difference. Inspect the proposed tool arguments before allowing an application to execute them.

Specifications & access

Qwen-SEA-LION-v4.5-27B-IT specifications
DetailValue and conditions
AccessDownloadable
Model identifiersaisingapore/Qwen-SEA-LION-v4.5-27B-IT
Input and outputText and image inputs; text outputQwen-SEA-LION-v4.5-27B-IT official model card
Context stated by the card262K tokensQwen-SEA-LION-v4.5-27B-IT official model card
License declared by the model cardMITQwen-SEA-LION-v4.5-27B-IT official model card
Post-trainingLogit distillation and model mergingQwen-SEA-LION-v4.5-27B-IT official model card

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