Blender showdown: Opus 5.5 vs GPT-6 Astra build a pirate ship
Given the same reference image and prompt, Astra had the stronger first pass and smoother final result while Opus 5.5 finished its first scene faster; the author concludes the model that best handles adding detail wins.
opus 5.5 vs gpt-6 astra in blender... same reference, same prompt, zero manual modeling. here’s how each one actually builds: the trick is giving both the exact same setup, so it’s a fair fight: - step 1: start from an empty blender project and connect the model (opus 5.5 through the claude desktop app + blender mcp) - step 2: drop in one reference image and one plain-english prompt - step 3: let it plan the build, write the python, run it and check the viewport on its own - step 4: run 2 rounds of fixes: “more detail, realistic materials, better textures” - step 5: ask for camera moves and export who does what: - opus 5.5: clean, smooth shapes, solid structure, needs more rounds to get detail - gpt-6 astra: stronger first pass, more chrome and small parts, a bit low-poly at the start you: reference image, feedback, export the results from one pirate ship test: - opus 5.5: first scene in ~5 min, full cinematic scene in ~30 min - gpt-6 astra: first scene in ~7 min, better first pass, smoother final and the rule that decides the winner... the first pass doesn’t matter. both look basic at first. the model that handles “add more detail” best wins, and in this test that was astra i like to run the same reference through both and keep the best parts. a 7-minute build is cheap enough to test twice
This post quotes another post: “Using Opus 5.5 to model, rig and animate 3D scenes in Blender”