Dan Shipper@danshipper2h ago

SONNET 5.5 IS OUT! It has dramatically improved writing even versus Opus 5.5 in my testing for @every. Astra is still my favorite for writing, but this model beats it at revision tasks. It's faster and cheaper than Opus 5.5, so it's @kieranklaassen's preferred model for quick iterative coding and design work. But both @kplikethebird and @hammer_mt feel like they don't have room in their stack for mid-tier models anymore. Full vibe check coming on @every! Until then you can see Sonnet's scores vs. Opus and Astra on my personal benchmark, drawn from my real work: https://checks.every.to/p/dans-editorial-checks?efforts%5B%5D=high&models%5B%5D=GPT-6+Astra&models%5B%5D=Sonnet+5.5&models%5B%5D=claude-sonnet-5&models%5B%5D=Opus+5.5