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Back to No.001 GPT-6 Astra in Practice: Tests, Use Cases, and FeedbackUpdated 12 hours ago
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Astra analysis suggests Union Alpha may be an OpenAI model

The author says GPT-6 Astra found that Union Alpha uses OpenAI's tokenizer and matched its cutoffs on 3/3 prompts, raising guesses of GPT-6 Luna or GPT-OSS 2.

bluedev
@blueemi99Archived 2026.09.17Originally posted 2026.09.17
Astra analysis suggests Union Alpha may be an OpenAI model
bluedev @blueemi99Originally posted 2026.09.17
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According to my Astra, Union Alpha might be an OpenAI model. It seems to be using OpenAI's tokenizer, and a live GPT model matched Union’s cutoffs on 3/3 prompts. GPT-6 Luna? GPT-OSS 2?

x.com/blueemi99/status/2100363375070896608Archived 2026.09.17 10:15
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