I Prefer OpenAI's Spud to Anthropic's Opus 4.7 Model
I am using OpenAI’s Codex 5.5 model to debug code now. I can say I like it better than both Anthropic’s Opus 4.6 model and certainly better than Opus 4.7, which feels like a downtick as it relates to coding. Codex 5.5 is OpenAI’s vaunted “spud” model. We shall see how Anthropic’s Mythos model stacks up when it is released.
2026 should be interesting insofar as the Anthropic vs. OpenAI battle is concerned for the reason we wrote about a couple of months ago in that OpenAI acquired GPUs more aggressively than Anthropic in 2025. This is part of the reason why Anthropic throttles usage, the company is compute capacity constrained.
Meanwhile, Sergey Brin has been back at Google DeepMind for I’m not sure how long trying to improve its models. The issue there is that DeepMind does great research, but the lab struggles to commercialize its research. I still believe Sundar Pichai is not the right person to lead the company. Whomever leads DeepMind when the dust settles ought to be GOOG CEO.
So, for the moment my preferred coding model is OpenAI Codex 5.5.