Summary & Key Takeaways ​

• GPT-6.1 Terra is a new OpenAI model focused on visual reasoning and computer use.
• It aims for speed and efficiency, offering clearer, more natural writing.
• Terra is positioned as a mid-range option, cheaper than Sol but smarter than Luna.
• Pricing is $1/million input tokens and $5/million output, significantly lower than previous models.
• It excels at technical communication, vision, and computer-based tasks.
• Simon Willison provides a detailed comparison grid of OpenAI's current frontier lineup.

Our Commentary ​

Simon Willison's breakdowns are always gold. GPT-6.1 Terra sounds like a solid contender for tasks requiring a balance of intelligence and cost-effectiveness. The emphasis on visual reasoning and computer use is a clear direction for these models. I'm particularly interested in how it performs on "technical communication" – that's a huge pain point for many. The pricing drop is also a big deal; it makes more automated tasks feasible.