Models PLUS

name = "Claude Sonnet 4.5" release_date = "2025-09-29" last_updated = "2025-09-29" attachment = true reasoning = true temperature = true tool_call = true knowledge = "2025-07-31" open_weights = false [cost] input = 3.00 output = 15.00 cache_read = 0.3 cache_write = 3.75 [limit] context = 1_000_000 output = 64_000 [modalities] input = ["text", "image"] output = ["text"]