OpenAI’s new model aces the benchmarks and admits it is better at hiding

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OpenAI has released GPT-6 Astra, the model that takes over from GPT-5.6 Sol at the top of its range. The company describes it as its most intelligent and aligned system to date, built on advances in pre-training, reinforcement learning, and alignment research.

It is going out in stages. A limited set of organisations has access now; ChatGPT Plus, Pro, Business and Enterprise users follow within days, and there is a separate Astra Pro variant for the paid tiers, with API access through OpenAI directly and through AWS Bedrock.

Astra is also the model whose cyber capability caused OpenAI to delay this release earlier in the year. The launch framing has been about arrival rather than arithmetic, and the AGI claim attached to it has taken most of the attention.

OpenAI’s launch video for GPT-6 Astra. Source: Introducing GPT-6 Astra (OpenAI, YouTube)

Moreover, OpenAI has put some striking numbers behind...

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