Post-training 4B model with RL to fly Tesla Roadster 21% better than GPT-6 Astra
THE SO WHAT
A 4B model post-trained with RL beating GPT‑6 Astra by 21% on a specific Roadster control task is another proof that narrow, tuned systems can outperform giants on well-scoped problems. For applied teams, budget should be shifting from chasing the biggest model to investing in task-specific training and feedback loops.
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