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

**Published:** October 27, 2026
**Author:** Matthias Bastian
**Source:** The Decoder
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/openai-s-ted-sanders-shares-a-rule-of-thumb-for-picking-the-right-gpt-mo

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…

> From the original source: **The Decoder**
> [Read full article at The Decoder](https://the-decoder.com/openais-ted-sanders-shares-a-rule-of-thumb-for-picking-the-right-gpt-model/)

**Tags:** #OpenAI

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