name = "Anthropic: Claude Opus 4.5"
description = "Flagship Claude model for deep reasoning, coding, and long-horizon agents"
# Native exception (accessed 2026-06-25): `thinking.type` is enabled or disabled;
# manual `budget_tokens` is >=1024 and below max_tokens, hence this 63,999 cap.
# https://docs.anthropic.com/en/docs/build-with-claude/extended-thinking
family = "claude-opus"
release_date = "2025-11-24"
last_updated = "2025-11-24"
attachment = false
reasoning = true
reasoning_options = [{ type = "toggle" }, { type = "budget_tokens", min = 1_024, max = 63_999 }]
temperature = true
tool_call = true
knowledge = "2025-11"
open_weights = false

[cost]
input = 5
output = 25
cache_read = 0.50
cache_write = 6.25

[limit]
context = 200000
output = 64000

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