GPT-6.1 Terra

A link-blog post notes that OpenAI's GPT-6.1 Terra announcement emphasized visual reasoning and computer use, describing it as a fast, efficient model positioned between the cheaper Luna and the more expensive Sol, priced at $1/million input tokens and $5/million output. The post quotes OpenAI's Ted Sanders saying Terra is better than Astra and Sol at technical communication, similar on vision and computer use but faster, and a bit worse on most other things, and includes pelican test images across reasoning levels.