Four models build a night train from the same prompt
Given the same prompt, 'Build a night train,' GPT-6 Luna, GPT-6.1 Sol, Claude Sonnet 5.5 and Claude Haiku 5.5 each produced a night train animation, and the author was most surprised by the cheap GPT-6.1 Sol.
Benchmark recap time! This round, it's the Night Train. Here are all four 🚀 I gave each model the exact same prompt: "Build a night train." GPT-6 Luna GPT-6.1 Sol Claude Sonnet 5.5 Claude Haiku 5.5 I'm seriously impressed by GPT-6.1 Sol, especially given its API price and how fast it cooks! 🤯 I've started using this approach in my own workflow. I kept one Codex subscription so I can run a bunch of Sol sub-agents while my main agent stays on Astra. Sol is so cheap for what it can do! Knowing when to switch models based on the task, the quality you need, and the cost is becoming an essential skill in this new AI era.