name = "Claude Sonnet 4"
description = "Balanced Claude model for coding, analysis, agent workflows, and cost control"
family = "claude-sonnet"
release_date = "2025-05-22"
last_updated = "2025-05-22"
attachment = true
reasoning = true
temperature = true
tool_call = true
knowledge = "2025-03-31"
open_weights = false

[limit]
context = 200_000
output = 64_000

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

[[benchmarks]]
name = "Aider Polyglot"
score = 61.3
metric = "percent correct"
source = "https://aider.chat/docs/leaderboards/"
date = "2025-05-24"