Quick Start
- 1
- 2Use the Anthropic SDK or REST API to call
claude-opus-4-8— see the documentation for request format. - 3
Code Examples
pip install anthropicANTHROPIC_API_KEYclaude-opus-4-8Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-opus-4-8",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)About Anthropic
Creator of Claude AI models, accessed via the Anthropic API and the Anthropic Console (console.anthropic.com). The Console hosts the Workbench prompt playground, API keys, usage analytics, and team billing.
Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.
Pricing on Anthropic
| Type | Price (per 1M) |
|---|---|
| Input tokens | $5.00 |
| Output tokens | $25.00 |
| Query | $10.00 |
Capabilities
About Claude Opus 4.8
Claude Opus 4.8 is Anthropic's most capable generally-available model for complex reasoning, long-horizon agentic coding, and high-autonomy work. It improves on Opus 4.7 across agentic coding (SWE-bench Pro 69.2% vs 64.3%), agentic terminal coding (Terminal-Bench 2.1 74.6% vs 66.1%), multidisciplinary reasoning (HLE 57.9% with tools vs 54.7%), and agentic computer use (OSWorld-Verified 83.4%). Features a 1M-token context window (200k on Microsoft Foundry), 128k max output tokens, adaptive thinking with effort control defaulting to high, computer use, and a fast mode at 2.5× speed ($10/$50 per MTok). Approximately 4× less likely than Opus 4.7 to leave undetected code flaws. Deprecated Claude Opus 4 and Claude Sonnet 4 should migrate to Claude Opus 4.8.