Fingerprint test claims DeepSeek V4.1 Flash is actually GPT-6 Astra (unverified)
wateriscoding · x · 2026-10-18
A model fingerprint attribution test on ds-4.1-flash-1017 returned gpt-6-astra as the most likely underlying model (84.66% probability, GPT family 90.71%), with claude-sonnet-5-5 second at 9.17%. If true, DeepSeek V4.1 Flash would be a rebranded OpenAI model sold at DeepSeek prices. Unverified community inference based on an 18-model fingerprint library.
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