Name: Claude 3 Opus API
Brand: Anthropic

How to use Claude 3 Opus API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to .

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Claude 3 Opus API Pricing

Type	Price
Input
Output	tokens

Model	Input	Output	Context	Best for
Claude 3 Opus This page
GPT-5.5	$6.5 / 1M	$39 / 1M	1.05M tokens	Reasoning + agents
Claude Sonnet 5	$2.6 / 1M	$13 / 1M	1M tokens	Balanced coding + agents
Kimi K3	$3.9 / 1M	$19.5 / 1M	1M tokens	Long-context, multimodal & agentic workflows
Gemini 3.5 Flash	$0.65 / 1M	$3.9 / 1M	1.05M tokens	Reasoning + agents