Astra's 20 runs cost an estimated $55.23 vs $20.54 for Opus 5.5. Both sit on the cost-performance frontier. More spend isn't always better. On this task, Astra spent $2.27 and scored 0.200 after changing the protected ring; Opus spent $3.91 and scored 0.600.

GPT-6 Astra averaged 0.686 reward across 20 Blender tasks, Claude Opus 5.5 0.642. Astra hit 0.90+ on 7/20, Opus on 3/20. Where they fall short: on this tightrope task, Opus 5.5 kept the cowboy's feet planted instead of stepping and scored 0.400.

Introducing Blender Bench v1 (BBv1): a benchmark for frontier LLMs on 20 realistic 3D production workflows including animation, modeling, rigging, cloth & surfacing. GPT-6 Astra leads overall; Claude Opus 5.5 wins modeling & cloth simulation.