GPT-6 Astra character

ModelOpenAI · Joined Sep 3, 2026

GPT-6 Astra

The basics

Checked Oct 20
Status
AvailableAvailable from OpenAI.
Model ID
Price
$10 in, $50 outPer 1M tokens, since Sep 3
Context
1,050,000 tokens

Updates

Full changelog, by month

Strengths and weaknesses

Strengths

  • Complex reasoning

  • Coding

  • Computer use

  • Research

  • Coding

  • Pleasing users in agent sessions

  • Taking direction mid-task

Weaknesses

  • !

    Higher pricing above 272K input tokens

Role

Flagship model at OpenAI

  1. GPT-6 Astra character

    GPT-6 AstraCurrent

    Sep 2026 to now · 2 months
  2. GPT-5.5Apr 2026 to Sep 2026 · 5 months
  3. GPT-5.4Mar 2026 to Apr 2026 · 1 month

Works with

From recorded changes
Cursor character
Cursor

Agent · 1 shared change

GitHub Copilot character
GitHub Copilot

Agent · 1 shared change

OpenAI Codex character
OpenAI Codex

Agent · 1 shared change

Perplexity

App · 1 shared change

Perplexity Agent API

API · 1 shared change

Similar models

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GPT-6.1 Sol character
GPT-6.1 Sol

$2 in, $10 out · Compare

Gemini 4 Argon character
Gemini 4 Argon

$2 in, $10 out

Similar models for now. Real viewing data comes after launch.

Cost vs peers

Most expensive of 6 similar models by output price.

Standard API rates for uncached input on the shortest prompts, from each maker's pricing page, or from models.dev for models not researched here yet. Gemini 4 Argon: Introductory price through Nov 30, 2026, then $4 in and $20 out.

Cost and specs

Cost

Per 1M tokens

Input
$10.00
Output
$50.00
Cached input
$1.00
Cache writes
$12.50

Specs

Context
1,050,000 tokens
Max output
128,000 tokens
Knowledge cutoff
Apr 30, 2026

Where it works

PlacePrice per 1M tokens, in / outUptime
OpenAI$5 / $2599.65%
Amazon Bedrock$10 / $5094.87%
Azure$10 / $50100%

Prices and uptime are OpenRouter's figures for each provider's cheapest endpoint. Uptime covers the last 24 hours.

Benchmarks

Higher is better. Green is GPT-6 Astra. Dark marks are similar models.

Independent

What people say

Reviews (1)

Lior GrossmanShipping software since 1993, now building with AI
GPT-6 Astra is my second opinion for reviews, math and experiments. Before I commit to an architecture, an experiment or a strategy, I ask Astra to find what's wrong with it, and it usually finds something. I made an Astra review a required step before my coding agents commit. It once caught a bug that erased a user's answers without asking, before the add-on reached users. It's like a person with an IQ of 200 and no social skills. It's brilliant at adversarial review, statistics and math. It sucks at UI and copywriting, so I never consult it on copy. It also nitpicks, overengineers and causes scope creep, so I tell my agents to take only its important fixes.

Oct 31, 2026

Used GPT-6 Astra? Tell other builders what worked and what did not.

What builders said

Short excerpts from public posts, each linked to the original.

"Astra is almost unusable, if i ask one prompt it burns 10-20% of my weekly, but my project is very complicated; even using sol 6.1 on high i can easily use the whole 100/m plan weekly in a day."
Full-Resolution9449, r/ChatGPTPro member

Reddit

"It found out over 60 bugs and also very token efficient and after that I've done all reviews with Astra only and I'm happy with results :)"
rearview, Hacker News commenter

Hacker News

Incidents

2 incidents, 4 h recorded in the last 90 days, from OpenAI's status page. Only major incidents or ones lasting 30 minutes or more are counted. Fewer records do not prove better uptime.

Incidents per week, last 13 weeks. Most in one week: 1.

Aug 3, 2026Last 7 days

Writing habits

Creative writing · EQ-Bench, among 51 models tracked here

Slop score

8.4

Overused AI words and phrases. Less slop than 96% of tracked models.

Repetition

3.5

Repeated words and ideas. Less repetition than 64% of tracked models.

Story length

6,191

Average characters per story. Longer than 52% of tracked models.

Research sources

Researched Oct 20, 2026. Each section's own sources open with its Show sources button.