CLAUDE SONNET 4.5 IS A VERY GOOD MODEL

Summary from the TLDR AI newsletter

Anthropic claims that Claude Sonnet 4.5 is the best coding model in the world. While there are still clear use cases where versions of GPT-5 seem likely to be better, Claude Sonnet does seem like the best coding model in the world right now. GPT-5 still seems to make better use of extended thinking time than Claude Sonnet 4.5 does. Unless you must have an open model or need to keep inference costs very low, there is no reason to consider anything other than Claude Sonnet 4.5 or GPT-5.