GPT-6 Astra

Technology

OpenAI's latest flagship model claimed to herald the AGI era.


First Mentioned

9/5/2026, 4:54:14 AM

Last Updated

9/5/2026, 4:55:33 AM

Research Retrieved

9/5/2026, 4:55:33 AM

Summary

GPT-6 Astra is a frontier large language model and artificial intelligence system developed by OpenAI, led by Sam Altman and Greg Brockman. Positioned as a generational leap in AI capabilities, the model sparked broad discussion regarding the advent of Artificial General Intelligence (AGI). Astra delivers state-of-the-art performance across computer and browser use, software engineering, mathematics, scientific research, and cybersecurity, saturated benchmarks such as ARC-AGI-3 (99.9%), FrontierMath Tier 4 (97.6%–98%), and ExploitBench (100%), and scored 72.6% on OSWorld 2.0. In response to its critical cybersecurity capabilities and safety considerations, OpenAI instituted universal monitoring over its chain of thought to detect misalignment and risky behavior. GPT-6 Astra competes directly with frontier models from Anthropic, Google, and xAI amidst ongoing debates regarding AI safety, open versus closed-source AI, and datacenter infrastructure.

Research Data
Extracted Attributes
  • Category

    Large Language Model / Artificial General Intelligence

  • Developer

    OpenAI

  • API Identifier

    gpt-6-astra

  • Safety Feature

    Universal monitoring for risky actions and misalignment via chain-of-thought observation

  • Variants Mentioned

    Luna, Terra, Sol (associated with predecessor GPT-5.6 family); GPT-6 Astra Pro

  • ARC-AGI-3 Benchmark Score

    99.9%

  • OSWorld 2.0 Benchmark Score

    72.6% (in approximately 40 minutes per task)

  • ExploitBench Benchmark Score

    100%

  • Cybersecurity Preparedness Level

    Critical threshold under OpenAI Preparedness Framework

  • FrontierMath Tier 4 Benchmark Score

    97.6% - 98%

Timeline
  • Initial limited preview release of GPT-5.6/Astra technology to a small group of trusted partners due to government restrictions. (Source: undefined)

    2026-06-26

  • OpenAI unveils the GPT-5.6 family consisting of Luna, Terra, and Sol variants. (Source: undefined)

    2026-07-09

  • OpenAI launches GPT-5.6-Cyber with Daybreak Blue and Red, achieving a 95% completion rate on cybersecurity tasks. (Source: undefined)

    2026-08-10

  • Astra implements universal monitoring over chain-of-thought processes to prevent risky actions and misalignment. (Source: undefined)

    2026-08-11

  • OpenAI announces that access to advanced cybersecurity capabilities will be restricted to trusted testers via Daybreak Blue. (Source: undefined)

    2026-09-01

  • OpenAI officially rolls out GPT-6 Astra, described by Greg Brockman as a generational leap signaling the arrival of AGI. (Source: undefined)

    2026-09-03

GPT-5.6

GPT-5.6 (Generative Pre-trained Transformer 5.6) is a large language model (LLM) developed by OpenAI and released on July 9, 2026. It is a family of models that comes in three distinct variants, ranked from least to most capable: Luna, Terra, and Sol. The models were designed to expand user capabilities across enterprise work, coding, scientific research, and cybersecurity. Due to government restrictions levied by the Donald Trump administration, GPT-5.6 was first released as a limited preview only on June 26, 2026 for "small group of trusted partners", despite the planned public rollout in the same month. On August 10, 2026, GPT-5.6-Cyber was launched with Daybreak Blue and Red, and it solved and completed 95% of cybersecurity problems. On August 11, 2026, Astra now has "universal monitoring for risky actions and misalignment," with monitors watching over its "chain of thought" in order to stop the model if it starts to move into high risk activity.

Web Search Results
  • GPT-6 Astra - Wikipedia

    GPT-6 Astra (aka Generative Pre-trained Transformer 6, or for short GPT-6) is a large language model (LLM) developed by OpenAI and was released on September 3, 2026, which on that day, president Greg Brockman called a "generational leap" and said could eventually be seen as the arrival of artificial general intelligence, or AGI. OpenAI reported on September 1, 2026, that access to its most advanced cybersecurity capabilities will be more limited. Advanced cybersecurity work will initially be available to a group of testers, with access through Daybreak Blue following to expand defensive use. ## References [edit]

  • GPT-6 Astra: A new generation of intelligence | OpenAI

    GPT‑6 Astra is our best model for adhering to existing templates and producing slides that are well laid out and succinctly convey key points with a structured narrative. It creates clear, well-structured documents, presentations, spreadsheets, and analyses that follow your templates and match your writing and visual style. Astra is also trained to specifically pull only the context that matters into outputs, instead of repeating information unnecessary for the work at hand. All this means it can output more immediately usable artifacts that match your business context and standards. [...] GPT‑6 Astra brings together years of research and big bets across pre-training, reinforcement learning, and alignment. Astra is state-of-the-art on computer use, browsing, software engineering, cybersecurity, science, and professional work. Astra saturates FrontierMath Tier 4 with a 98% score, having already helped solve long-standing open problems⁠ in mathematics. Astra also saturates ARC-AGI-3 with a 99.9% score and ExploitBench with a 100% score. It also sets a new frontier on computer and browser use, handling the most demanding professional work with unmatched speed, accuracy, and judgment. [...] GPT‑6 Astra also brings stronger visual judgment to the websites, games, applications, and renderings it builds. With Sites⁠(opens in a new window) in ChatGPT, Astra can create, host, and share websites, web apps, and games directly from a prompt. When instructions leave room for interpretation, GPT‑6 Astra is better than previous models at making the right call. It uses context to fill in routine gaps and asks focused questions when the answer could change the outcome. In Codex, it can ask asynchronously while continuing work that doesn’t depend on your reply. If you don’t respond, it proceeds with sensible assumptions where appropriate, but waits for your input on consequential decisions.

  • GPT-6 Astra: Features, Benchmarks, and Pricing

    To see how the competition stacks up, check out our comparison of Claude Opus 5 and Claude Sonnet 5 and our guide to learning Claude. ## What is GPT-6 Astra? GPT-6 Astra is OpenAI's new frontier flagship, succeeding GPT-5.6 Sol as the top model for reasoning, computer use, and agentic work. OpenAI positions it around three areas: The most useful benchmark headline for practitioners is OSWorld 2.0, where Astra scores 72.6% in about 40 minutes per task, compared with GPT-5.6 Sol's 65.7% at roughly 75 minutes. That combination of higher accuracy and lower wall-clock time is the difference between an agent you babysit and one you can hand a task to. [...] ## GPT-6 Astra Pricing and Availability GPT-6 Astra is rolling out to a limited set of organizations first, then to all ChatGPT Plus, Pro, Business, and Enterprise users over the coming days, plus the OpenAI API and AWS. Enterprise admins can enable it per workspace, and it is off by default at launch. Pro, Business, and Enterprise plans also get GPT-6 Astra Pro. For developers, the model is available as `gpt-6-astra` in the OpenAI API and in Amazon Bedrock. `gpt-6-astra` Standard API pricing is: For context, that is well above GPT-5.6 Terra's $2/$12 rates from our earlier coverage, and above Claude Opus 5's $5/$25. Astra is priced as a frontier reasoning and automation model, not a bulk-text workhorse. [...] The headline claims are aggressive. Astra saturates FrontierMath Tier 4 with a 97.6% score, saturates ARC-AGI-3 with a 99.9% score under OpenAI's provider adapter harness, and hits 100% on ExploitBench. It also sets a new frontier on computer and browser use, scoring 72.6% on OSWorld 2.0 at roughly 47% less time per task than its predecessor GPT-5.6 Sol. Both ARC-AGI-3 and FrontierMath Tier 4 were designed specifically to stay ahead of AI capability, so saturating them signals something qualitatively different from beating a standard leaderboard. In this article, I'll cover everything new with GPT-6 Astra, looking at the new features, exploring the benchmarks, and putting it through its paces with hands-on examples.

  • Introducing GPT-6-Astra: The most intelligent and aligned model in ...

    HRUM2Qza4AARIsx680×581 15.3 KB HRUM2Qza4AARIsx Astra is our most aligned model, with substantial improvements in understanding user intent. HRUNOluaIAAU909 HRUNOluaIAAU909680×422 9.2 KB HRUNOluaIAAU909 GPT-6 Astra is state-of-the-art on FrontierMath Tier 4, ARC-AGI 3, and TerminalBench-4.0. GPT‑6 Astra is also a major advance for scientific discovery, with state-of-the-art performance on Terminal-Bench Science 0.1 and HealthBench Pro. HRUNO2ZbIAELO7g HRUNO2ZbIAELO7g680×383 13.2 KB HRUNO2ZbIAELO7g GPT-6 Astra is rolling out today to a limited set of organizations and over the coming days will become available to all ChatGPT Plus, Pro, Business, and Enterprise users, as well as through the OpenAI API and AWS. [...] # Introducing GPT-6-Astra: The most intelligent and aligned model in the world Anything you can do on a computer, Astra can do for you. Fast. GPT-6 Astra is the most intelligent and aligned model in the world, and sets a new state of the art for computer use, browsing, software engineering, cybersecurity, science, and professional work. ### GPT-6 Astra: A new generation of intelligence Introducing GPT-6 Astra, our most intelligent and aligned model yet, with state-of-the-art capabilities across computer use, coding, cybersecurity, and science. Astra achieves state-of-the-art results on Agents’ Last Exam, AutomationBench, and ScreenSpot Pro, benchmarks for computer workflow tasks across professions. HRUM2Qza4AARIsx HRUM2Qza4AARIsx680×581 15.3 KB HRUM2Qza4AARIsx

  • OpenAI rolls out GPT-6 Astra, touting major AI performance gains | Fox Business

    Conviction Partners founder Sarah Guo discusses the growth and market impact of the AI IPO pipeline, focusing on OpenAI and Anthropic on 'Making Money.' OpenAI on Thursday unveiled GPT-6 Astra, a new artificial intelligence (AI) model the tech company says features major improvements in computer use, coding, scientific research and professional work. The San Francisco-based company said Astra is rolling out starting Thursday to enterprise customers with Daybreak access. In the coming days, it will also roll out to ChatGPT Plus, Pro, Business and Enterprise users, as well as through the OpenAI API and Amazon Web Services. [...] "GPT-6 Astra is built on advances across pre-training, reinforcement learning, and alignment, bringing together years of research and big bets," OpenAI said. "Astra is state-of-the-art on computer use, browser use, software engineering, cybersecurity, science, and professional work." OPENAI, 100+ COMPANIES WARN OF COMING SURGE IN AI-POWERED CYBERATTACKS, CALL FOR GLOBAL DEFENSE PUSH Openai Headquarters OpenAI's headquarters is pictured in San Francisco on Aug. 14, 2025. (Smith Collection/Gado/Getty Images) The new model can carry out "tedious" computer-based tasks, such as filling out online forms, updating customer records, organizing calendars and conducting research. OpenAI also said that Astra can create documents, spreadsheets and presentations. [...] "GPT-6 Astra is the best model for software engineering to date," the company added. OPENAI SAYS AI MODEL HACKED ANOTHER COMPANY'S SYSTEMS DURING INTERNAL TEST Smartphone AI applications OpenAI also said that Astra can create documents, spreadsheets and presentations. (Samuel Boivin/NurPhoto via Getty Images) The tech company also said that Astra represents a significant jump in cybersecurity capabilities. "As we discussed in our safety update, Astra is a significant jump in cyber capabilities and meets the Critical threshold in cybersecurity under our Preparedness Framework," OpenAI said. The company also touted Astra’s performance in math and science, calling Astra a "major advance for scientific discovery, mathematics, and health."