name = "Claude Sonnet 4.5 (latest)"
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
knowledge = "2025-07-31"
open_weights = false

[limit]
context = 200_000
output = 64_000

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

[[benchmarks]]
name = "SWE-Bench Pro"
score = 43.6
metric = "resolve rate"
dataset = "public"
source = "https://labs.scale.com/leaderboard/swe_bench_pro_public"