Anthropic deprecated claude-opus-4 and claude-sonnet-4 on April 14 with retirement set for June 15
Both models get replaced by their 4.6 versions with 1M context, adaptive thinking, and higher output limits
Opus 4.6 supports 128K max output tokens versus Opus 4's 32K, and 1M context is included at standard pricing
Sonnet 4.6 scores 79.6% on...