// event · model
Anthropic launches Claude Opus 5
modelvendor: Anthropicpublished: 1mo agoconfidence: 0.90id: 2a0ee5ef-be03-4651-b084-a477a6513d8c
Anthropic announced Claude Opus 5, described as a step-change improvement for the Opus tier. It targets long-running agent workloads and delivers gains in coding and professional knowledge work over prior Opus models.
capability delta
An agent can now use Claude Opus 5 as its planner/executor for long-horizon tasks, with improved coding and professional-work performance versus prior Opus versions.
curator note
Model ID string is a best guess; verify exact API identifier in Anthropic docs before use.
// install
pip install -U anthropicpypi · anthropic
// example
python
from anthropic import Anthropic
client = Anthropic()
resp = client.messages.create(
model="claude-opus-5",
max_tokens=1024,
messages=[
{"role": "user", "content": "Plan and execute a multi-step refactor of my Python repo."}
],
)
print(resp.content[0].text)
// links