GPT-6 Astra

OpenAIChatIDGlobal
GPT-6 Astra is OpenAI's flagship model for demanding work, with text and image input, a 1.05M-token context window (922K maximum input) and up to 128K output tokens; list price $10.00 in / $50.00 out per 1M tokens, provider list as at 1 November 2026.

Provider list price

GPT-6 AstraPer 1M tokens, as at 1 November 2026
Token typePrice
Input10.00
Output50.00
Cached input1.00
AUD is shown at a reference rate of 1 USD = 1.53 AUD; invoices use the rate on the day.

Your Seedrise rate is quoted per account against this list price. Request a rate card.

Specifications

Model IDgpt-6-astra
ProviderOpenAI
TypeChat
Context window1.1M tokens (1,050,000)
Max output128K tokens (128,000)
ModalitiesTextVisionToolsReasoning
RegionGlobal Provider global routing
EndpointsOpenAI Chat Completions: https://api.seedrise.ai/v1
Prices checked1 November 2026

Global: runs on the provider's global routing; no Australian-region option as at 1 November 2026. Prompts over 272K input tokens are billed by OpenAI at $20.00 in / $75.00 out and $2.00 cached per 1M tokens for the whole request.

Strengths

  • Reasoning effort from low up to max, set per request
  • 922K-token maximum input with up to 128K output tokens
  • Function calling and structured outputs
  • Knowledge cutoff of 30 April 2026

Typical use cases

  • Complex analysis and planning where accuracy outweighs cost
  • Long-document review and synthesis
  • Hard coding and debugging tasks
  • Quality baselines for evaluating lower-cost models

Quickstart

A first request with curl. Replace sk-... with your Seedrise key.

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

OpenAI SDK, Python

python
from openai import OpenAI

client = OpenAI(base_url="https://api.seedrise.ai/v1", api_key="sk-...")

r = client.chat.completions.create(
    model="gpt-6-astra",
    messages=[{"role": "user", "content": "Summarise this contract in three bullets."}],
)
print(r.choices[0].message.content)

Where it runs

Global Served on the provider's global routing. Australian-region pinning is not on the rate card for this model; ask if you need it.

Questions about GPT-6 Astra

What is the model ID for GPT-6 Astra? +
Use gpt-6-astra as the model field, with no vendor prefix, on the OpenAI-compatible endpoint at https://api.seedrise.ai/v1. GET /v1/models returns the IDs your key can call.
How does the Seedrise rate for GPT-6 Astra compare to the list price? +
OpenAI's list price as at 1 November 2026 is US$10.00 per 1M input tokens and US$50.00 per 1M output tokens. Seedrise quotes rates per account against the provider's published list price for the same routing. Volume and committed tiers sit below list.
What is the context window and max output of GPT-6 Astra? +
GPT-6 Astra has a context window of 1,050,000 tokens and a maximum output of 128,000 tokens, per the provider documentation checked on 1 November 2026.
Can GPT-6 Astra run in Australia? +
Not at present. GPT-6 Astra is served on the provider's global routing. Models marked AU in the model library can be pinned to Sydney or Melbourne on request.
Can I turn reasoning off on GPT-6 Astra? +
No. OpenAI lists low, medium, high, xhigh and max as its effort levels, so low is the lightest setting. For calls without reasoning, GPT-6.1 Terra and GPT-6 Luna accept an effort of none.
What does a prompt over 272K tokens cost on GPT-6 Astra? +
OpenAI bills the whole request at the long-context rate: $20.00 in / $75.00 out and $2.00 cached per 1M tokens at list as at 1 November 2026, against $10.00 / $50.00 for shorter prompts.

Get a rate for GPT-6 Astra

Per-model rates in writing within one business day, then a console login and a trial key.

Request a rate card →