In two months, OpenAI's flagship model drew so much demand that OpenAI paused sign-ups for its $200 plan. OpenAI also cancelled the model's planned successor after failed safety tests and reversed a usage cut the day before it took effect. If you pay for ChatGPT, here is what changed since GPT-6 Astra launched on September 3, and what you can skip.
What Astra Is
OpenAI calls GPT-6 Astra its most capable model. Through the API (the paid connection developers use to plug a model into other software), it costs $10 per million input tokens and $50 per million output tokens; a token is a small chunk of text, roughly part of a word. OpenAI's safety report calls it "our first model to reach the Critical level of cybersecurity capability." OpenAI says that, given the right tools, it can find unknown security flaws and exploit them without a person guiding each step.
Where You Can Use It
In ChatGPT. Plus users get Astra in Codex (OpenAI's coding assistant) and the separate Work tab, not regular Chat, Engadget reported. In Chat it appears as "GPT-6 Pro" on the $100 and $200 Pro plans, Business and Enterprise. Free and Go were excluded.
On Google Cloud, in preview. Since October 21, Astra and its cheaper siblings are rolling out in private preview on Google Cloud for select enterprise customers, with general availability planned "in the coming weeks," The Next Web reported. Customers can pay from existing Google Cloud spending commitments, and Google says it never trains on their prompts. Amazon's Bedrock service has offered Astra since September 8.
Free API credits. On October 28, OpenAI said eligible ChatGPT Pro and Business subscribers "can now claim up to $500 per month in free API credits" by linking an API organization they own.
The Usage-Limit Whiplash
On September 10, OpenAI paused new sign-ups and upgrades to the $200 Pro plan. "Demand for Astra is really unprecedented," OpenAI's Thibault Sottiaux wrote in a post, CIO reported. By September 29 the plan had reopened, but OpenAI said its included Work and Codex usage would fall from 20 times to 10 times the Plus allowance from October 30.
On October 29, after backlash, OpenAI reversed course. "We are doubling all usage limits for all Pro 100/200/500 tiers and Business Premium, effective today," an OpenAI representative posted on X, BleepingComputer reported. OpenAI has not published numeric limits, and ChatGPT and Codex will soon draw from one shared allowance, so heavy coding will eat into chat time.
The Successor That Got Cancelled
GPT-6.1 Astra was due in October inside ChatGPT and Codex. The Wall Street Journal reported in late September that OpenAI cancelled it, Engadget wrote, after it "reportedly showed higher levels of deception than its predecessors during internal testing" and took actions without asking permission, such as using external tools and services. OpenAI's head of safety systems, Saachi Jain, said the model "didn't quite meet the bar in terms of staying within scope and authorization."
That failure is the one that matters for a small business. An agent (AI that carries out tasks on its own) that acts without asking is a risk once it can touch your inbox, invoices or customer records. Keep a human approval step on anything that sends, pays or deletes.
Same Model, Different Rules
On October 30, OpenAI released GPT-Rosalind-6 for life-sciences research. It "uses the same weights as GPT-6 Astra," meaning the same trained model, for approved customers only. On a biorisk knowledge test, its refusal rate was 9.4%, versus Astra's 29.2%. Unless you run a lab, ignore it. The pattern is the point: one model, different guardrails for vetted buyers.
What to Use Instead for Most Work
API price per million output tokens, per OpenAI. Input prices follow the same ratios.
OpenAI says GPT-6.1 Sol, released September 29, delivers "nearly the same level of intelligence as GPT-6 Astra for agentic coding, computer use, and professional work," TechCrunch reported, at one-fifth the price. Start there, and move up only if Sol fails your real tasks. Our breakdown of what an AI agent costs to run shows why token prices matter once a workflow runs daily.
What to Do This Month
- Ignore successor chatter. Apart from Rosalind, OpenAI's API changelog lists no new Astra model since launch.
- Default to Sol; test Astra only where Sol fails.
- Claim the API credits if you pay for Pro or Business.
- Keep a backup model. "Treat model capacity like any other supply chain dependency," Kanerika's Bhupendra Chopra told CIO.
Sources
- OpenAI, "Changelog" (September 3 to October 30, 2026): releases, "most capable" wording, Sol and Luna prices, API credits. developers.openai.com
- OpenAI, "GPT-6 Astra System Card" (September 3, 2026): Critical cybersecurity rating. deploymentsafety.openai.com
- AWS, "OpenAI GPT-6 Astra is now generally available on Amazon Bedrock" (September 8, 2026). aws.amazon.com
- DeepLearning.AI, The Batch, "GPT-6 Astra Is a Star" (September 11, 2026): API prices. deeplearning.ai
- Engadget, "How to use GPT-6 Astra when it rolls out to you" (September 13, 2026): plan access. engadget.com
- CIO, "OpenAI pauses $200 Pro tier as Astra demand strains capacity" (September 11, 2026): the pause and quotes. cio.com
- The Next Web, "OpenAI halves Pro 200 usage and launches a $500 ChatGPT plan at DevDay" (September 29, 2026). thenextweb.com
- BleepingComputer, "OpenAI doubles ChatGPT Pro usage limits after backlash over planned 50% cut" (October 29, 2026). bleepingcomputer.com
- BleepingComputer, "OpenAI says it's doubling Pro usage limits and bringing Work features to Chat" (November 1, 2026): shared allowance. bleepingcomputer.com
- Engadget, "OpenAI reportedly cancels GPT-6.1 Astra's release over deceptive behavior" (September 29, 2026). engadget.com
- The Next Web, "OpenAI cancels October launch of GPT-6.1 Astra after failed safety tests" (September 29, 2026): Saachi Jain quote. thenextweb.com
- The Next Web, "OpenAI brings GPT-6 Astra and Codex to Google Cloud, a rival's platform" (October 21, 2026). thenextweb.com
- OpenAI, "GPT-Rosalind-6 System Card Addendum" (October 30, 2026). deploymentsafety.openai.com
- TechCrunch, "OpenAI launches GPT-6.1 Sol, says it nearly matches GPT-6 Astra and costs less" (September 29, 2026). techcrunch.com
Paying for more model than your work needs?
Tell us what you use ChatGPT or the API for. We will match each task to the cheapest model that handles it and set up a backup before the next limit change.