About Claude Opus 4.8
Claude Opus 4.8 is Anthropic's Opus-tier Multimodal LLM for complex reasoning, long-horizon agentic coding, and high-autonomy professional work. It builds on Claude Opus 4.7 with gains across agentic coding, agentic terminal use, multidisciplinary reasoning, and computer use, while keeping a native 1M-token context window at standard pricing.
Other noteworthy features of Claude Opus 4.8 include adaptive thinking with user-controllable effort levels (defaulting to high), computer use for multi-step workflows, image processing, and a fast mode that runs at roughly 2.5x output speed. Opus 4.8 is also markedly less likely than Opus 4.7 to leave undetected flaws in generated code, and is the recommended migration target for the deprecated Claude Opus 4 and Claude Sonnet 4.
| Metric | Value |
|---|---|
| Context Length | 1,000,000 tokens |
| Max Output | 128,000 tokens |
| Multilingual | Yes |
Ready to build with Claude Opus 4.8?
Try Claude Opus 4.8 in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.
curl -sSf -X POST https://hub.oxen.ai/api/ai/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OXEN_API_KEY" \
-d '{
"model": "claude-opus-4-8",
"messages": [
{
"role": "user",
"content": "Try sending a message."
}
]
}'API endpoint
See the API reference for request and response formats.
https://hub.oxen.ai/api/ai/chat/completions