200K TOKENS IS PLENTY

Summary from the TLDR AI newsletter

Claude Opus 4.5 is considered the best model for coding, and it only has a context window of roughly 200,000 tokens. While some people feel like that is not a lot, that can be plenty for developers who use short threads. The best threads are short, with just the right amount of context. The longer the conversation, the more an agent's context window gets filled up with junk. You only need to give agents the context they need to get the job done, and no more.