GPT-6.1 Terra Priced at a Tenth of Astra, But Agent Performance Claims Still Unverified
OpenAI's GPT-6.1 Terra API model is listed at $1 per million input tokens and $5 per million output tokens, roughly one-tenth the published rates of the Astra model. The article argues that this cost gap is significant for businesses, particularly for high-volume or long-context workloads. However, public materials do not yet include an Agents' Last Exam score for GPT-6.1 Terra, so its performance on software-using agent tasks remains unproven. The author recommends that teams validate Terra against their own workflows before treating it as a replacement for higher-priced models. Evaluation should also weigh task quality, completion time, retries, and tool reliability alongside token prices.
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