

Reason over long, complex prompts
Add GPT-6 Astra to a text node and reason over long, complex prompts without leaving your canvas.

Understand images alongside text
Add GPT-6 Astra to a text node and understand images alongside text without leaving your canvas.

Power agentic workflows and tool use
Add GPT-6 Astra to a text node and power agentic workflows and tool use without leaving your canvas.
Frequently asked questions
What is GPT-6 Astra?
GPT-6 Astra is OpenAI's flagship text model, with strong reasoning and multimodal understanding of images alongside text. Connect prompts and image references to a text node and choose a supported thinking level for the task.
How do I use GPT-6 Astra on Melius?
Melius is a node-based canvas: add a text node, pick GPT-6 Astra from the model picker, and connect it to whatever should feed it or follow it. You only pay for what you generate.
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