Anthropic
claude-opus-4-5 API
Call claude-opus-4-5 by Anthropic through one OpenAI-compatible API. Keep your SDK, change the base URL, and pay per token from your Yeap balance.
Flagship Claude model for deep reasoning, coding, and long-horizon agents
New LLM API accounts get $5 of free credit.
Quick start
Call claude-opus-4-5 in a few lines
Use any OpenAI SDK or plain HTTP. Point the base URL at Yeap Cloud and set the model name.
curl https://llm.yeap.cloud/v1/chat/completions \
-H "Authorization: Bearer $YEAP_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-4-5",
"messages": [{"role": "user", "content": "Hello"}]
}'claude-opus-4-5 variants
Same model with a different reasoning effort, mode or snapshot. Use the exact name in the model field.
| Model | Input / 1M tokens | Output / 1M tokens |
|---|---|---|
claude-opus-4-5-20251101 | $5 | $25 |
claude-opus-4-5-20251101-thinking | $5 | $25 |
claude-opus-4-5-thinking | $5 | $25 |