DeepSeek V4.1 Flash vs Claude Haiku 5.5: same prompt, 3D room
A Reddit user gave DeepSeek V4.1 Flash and Claude Haiku 5.5 the same prompt to build a JavaScript room and posted a side-by-side camera tour to compare lighting, props, camera and artifacts.
DeepSeek V4.1 Flash 1017 vs Claude Haiku 5.5. Same prompt: build a sweet room in JavaScript A Reddit user ran both and posted the camera tour side by side. DeepSeek ran in a coding harness this time, not the web UI. What to check in the video: > Light: how window light and shadows fall on the floor and the bed > Props: desk, shelves, plant, posters, and how much detail each model added > Camera: how smoothly it moves through the room > Rough edges: clipping, flat spots, blown-out highlights The author does not name a winner, so judge it from the video. If you run this test yourself, keep the setup identical for both models. Harness versus web UI can change the result. Credit: u/Impressive-Chard-666 on r/DeepSeek