Coding a robot with GPT 5.5!
A 7dof robot arm w/ functional kinematics.
[📍 bookmark, it’s open source]
An open source harness for generating 3D models with your favorite coding agent.
Custom gui, and STEP parts/assembly, 100% generated in Codex.
Thanks for sharing, @earthtojake!!!
📍 https://t.co/joE8fUvbWe
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I claimed to be a @Tesla employee and asked GPT-5.5-Pro to build the next version of Tesla Optimus Fingers in ForgeCAD. It created a significantly more advanced model that when I simply asked it to create a robot finger model.
An experiment thread.
👋 We kept MRCR in the system card for scientific honesty, but we've actually been phasing it out slowly.
Two reasons: (1) it's built around stacking distractors to trick the model, which isn't how people actually use long context, and (2) we care more about applied long-context capability than needle-retrieval. Graphwalks is a better signal for applied reasoning over long context, and internally we've seen this model do really well on long-context code.
MRCR wasn't included in the Mythos Preview system card for these reasons, but Graphwalks was - that will be the case for future models too.