GPT-6 Astra and Claude Opus passed the second Turing test — they cracked WWII-era cryptanalysis
· Source: original
GPT-6 Astra and Claude Opus finished Turing's unfinished work
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September 25, 2026, TechCrunch: two frontier models passed the "second Turing test." The test is not a dialogue one — it's a research task.
What's unusual here is that the classic Turing test is about something else: can you tell a machine from a human in a conversation. Here the check is different: will the model carry to completion the work that a human did not finish.
The task: to complete Alan Turing's unfinished work on breaking World War II ciphers. That is, cryptanalysis, not chit-chat — a long chain of reasoning and calculations that must be held from start to result.
"Astra and Opus just passed Turing's other test""Frontier AI models are finishing Alan Turing's World War II codebreaking work."
Both models are named directly: GPT-6 Astra and Claude Opus. The source's wording is that the models are completing a real research task. The publication came out with an image in the original post.
The full material is at techcrunch.com
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