name = "Claude Sonnet 4.5"
description = "Balanced Claude model for coding, analysis, agent workflows, and cost control"
family = "claude-sonnet"
release_date = "2025-09-29"
last_updated = "2025-09-29"
attachment = true
reasoning = true
temperature = true
tool_call = true
structured_output = true
knowledge = "2025-07-31"
open_weights = false

[[reasoning_options]]
type = "budget_tokens"
min = 1_024

[cost]
input = 3
output = 15
cache_read = 0.3
cache_write = 3.75

[limit]
context = 1_000_000
output = 64_000

[modalities]
input = ["text", "image", "pdf"]
output = ["text"]