GPT-6 Astra is an advanced AI model from OpenAI designed for complex tasks and multi-step workflows. It combines strong reasoning with computer use, coding, research, and professional work, helping users solve complex problems and complete practical tasks across browsers, software, and other tools.

Pricing: Astra flagship model
gpt-6-astra

Automatically append previous messages to maintain multi-turn context. May increase token usage.

Function calling
Web Access
Reasoning effort
Stream Response

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README

Complete guide to using gpt-6-astra

GPT-6 Astra API – A New Generation of AI Intelligence on Kie AI

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GPT-6 Astra is available on Kie.ai as the model gpt-6-astra through an OpenAI Responses–compatible API. Its capabilities and parameters are listed above.

No. GPT-6 Astra on Kie.ai is a paid API billed in credits. New Kie.ai users receive 80 free credits for testing.

Send a POST request to /codex/v1/responses with model set to gpt-6-astra and the header Authorization: Bearer YOUR_API_KEY.

Pricing for input, cached input, cache writes and output tokens is shown in the pricing card above, and usage is billed in credits.

Set reasoning.effort to low, medium, high, xhigh or max. If you leave it out, medium is used.

You can try this model in the playground on this page without writing code.

It is listed by GET /openai/v1/models, the endpoint that returns the currently available models, so you can call it with model set to gpt-6-astra.

Kie.ai provides this model as an API with a playground; there is no app to download or install.