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Epoch AI test: GPT-6 Astra leads on both accuracy and speed

Epoch AI says that in practical-use testing, GPT-6 Astra was both the most accurate and the fastest model, making it a clear outlier.

Epoch AI
@EpochAIResearchArchived 2026.09.24Originally posted 2026.09.24
Epoch AI test: GPT-6 Astra leads on both accuracy and speed
Epoch AI @EpochAIResearchOriginally posted 2026.09.24
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For practical utility, speed matters as well as accuracy. Here GPT-6 Astra is a clear outlier. Not only is it the most accurate, but, of all the models we tested, it is also the fastest.

x.com/epochairesearch/status/2102810757817851985Archived 2026.09.24 10:17