GPT-6 Astra is now available

An advanced reasoning model for complex professional work, now available through Amanai with a 1.05M-token context window and up to 128k output tokens.

Models September 5, 2026

GPT-6 Astra from OpenAI is available through Amanai as amanai/gpt-6-astra.

What changed

GPT-6 Astra joins the public model catalog, dashboard calculator, status page, documentation, and Coding CLI model picker.

Capabilities

GPT-6 Astra accepts text, image, video, and file input and produces text output. It supports a 1.05M-token context window, up to 128k output tokens, streaming, tool calling, structured output, search, and selectable reasoning effort.

Supported reasoning choices are auto, low, medium, high, xhigh, and max.

Pricing

Pricing Engine v3 uses the following standard multipliers for GPT-6 Astra.

Component	Multiplier
Input	30.0
Output	150.0
Cached input	7.5

Using GPT-6 Astra

Existing Amanai API keys work without configuration changes:

bash

curl https://api.amanai.dev/v1/chat/completions   -H "Authorization: Bearer $AMANAI_API_KEY"   -H "Content-Type: application/json"   -d '{"model": "amanai/gpt-6-astra","messages":[{"role": "user","content": "Hello"}]}'