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ResearchOctober 27, 2026

OpenAI's Ted Sanders shares a rule of thumb for picking the right GPT-model

OpenAI's Ted Sanders explains where GPT-6.1 Terra fits in the company's GPT lineup. The smaller model outperforms the larger Astra in technical communication and costs far less but trails it in most other areas. Sanders says model size, reasoning effort, and multi-agent systems…

Matthias Bastian·The Decoder
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Key Takeaways
  • 01.OpenAI's Ted Sanders explains where GPT-6.1 Terra fits in the company's GPT lineup
  • 02.The smaller model outperforms the larger Astra in technical communication and costs far less but trails it in most other areas
  • 03.Sanders says model size, reasoning effort, and multi-agent systems…

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