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GPT-6 Astra API

LLM

GPT-6 Astra is OpenAI's newest flagship route, with 1M context, image input, and tool use.

  • Input · USD / 1M tokens$0.9 USDOfficial price$10 USD
  • Output · USD / 1M tokens$4.5 USDOfficial price$50 USD
  • Savings91%
  • Context1M
  • Last verified2026-09-24
  • View tool pricing and billing rules

Use this model through its documented API. An online playground is not available for this protocol yet.

Read the docs

01

Where it fits

GPT-6 Astra is OpenAI's newest flagship route, with 1M context, image input, and tool use.

Choose Astra for the hardest reasoning and agent work at one lower OmniaKey rate across its listed context window.

02

Model capabilities

Vision

Accepts visual input alongside text for multimodal coding and analysis tasks.

Tool use

Can select and call tools in agent workflows that support structured tool use.

03

OpenAI-compatible API

Keep your client and change the base URL, API key, and model ID.

curl
curl https://api.omniakey.com/v1/responses \
  -H "Authorization: Bearer $OMNIAKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-6-astra",
    "reasoning": {"effort": "medium"},
    "input": "Review this codebase and identify the two highest-risk areas"
  }'

04

Compatible coding tools

Codex
Cursor
Cline
Aider

More OpenAI models

Frequently asked questions

How much does GPT-6 Astra cost on OmniaKey?

OmniaKey currently charges $0.9 USD per 1M input tokens and $4.5 USD per 1M output tokens, in USD. Direct provider rates are separate and may change with input context length.

What is the context window for GPT-6 Astra?

The listed context window is 1M. Actual usable limits can also depend on the client and upstream request format.

Which coding tools work with GPT-6 Astra?

The current catalog lists compatibility with Codex, Cursor, Cline, Aider. Use the model ID shown on this page when the client supports model selection.