GPT-6 Astra on robot arms
A comparative study evaluates the performance of OpenAI's GPT-6 Astra against Fable models in controlling robotic arms for specific manipulation tasks. While Astra showed significant improvement in block placement, both models struggled with the precision required for puzzle insertion.
Why it matters
Advancements in LLM-driven robotics are critical for the future of autonomous manufacturing and household automation.
GPT‑6 Astra on robotic manipulation September 4, 2026
A follow‑up to our comparison of Claude Fable 5 and Fable 5.1 . We gave OpenAI's GPT‑6 Astra control of the same YAM arms under the same Inspect Robots agent policy, on the same two tasks:
"Pick up the red block from the table and place it inside the bowl."
"Pick up the round blue puzzle piece by the knob at its center and place it into the matching circular groove in the board."
On the bowl task Astra placed the block in 19 of 20 trials, against Fable 5.1's 8 of 20 and Fable 5 in 1 of 20, in 2.5 minutes per trial to Fable 5.1's 6.8, at an estimated $0.94 per run to $2.12.
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