ANTHROPIC IS ABOUT TO DROP SONNET 5 DURING SUPER BOWL WEEK

Summary from the TLDR newsletter

Leaks show that a new model by Anthropic, branded as Claude Sonnet 5, has an internal date string of February 3, 2026. It is unclear whether this is a public launch date or an internal checkpoint. The timing would coincide with the Super Bowl, which is an event where AI labs have been ramping up mainstream marketing to chase consumer mindshare. Early testing indicates the model already looks competitive on math with today's frontier-tier models, and it shows even stronger coding output than Claude Opus 4.5 in some workflows.