OpenAI's GPT-6.1 Terra model
- OpenAI launched GPT-6.1 Terra on October 26 at $1/million input tokens, roughly half the cost of GPT-5.6 Terra and GPT-6.1 Sol, scoring 50.3% on an internal coding benchmark against 21.5% for its predecessor and matching GPT-6 Astra on certain professional agent benchmarks at one tenth the price and more than 3x faster.
- A paper from October 22 on GPT-6-Astra in robot tasks found one long episode consumed roughly 9 million tokens, and the authors concluded task-specific data, heavy compute, and physical constraints block near-term deployment.
Terra's pricing positions a capable mid-range model at substantially lower cost than frontier alternatives, which may shift how developers choose models for agent and automation workloads. The robotics paper shows that even strong benchmark scores for GPT-6-Astra do not translate to reliable or cost-effective real-world robot deployment.