gpt-oss-120b & gpt-oss-20b Model Card — mentioned by lambda

Wed, 18 Feb 2026 18:50:04 GMT

Why do you think ChatGPT doesn't use a quant? GPT-OSS, which OpenAI released as open weights, uses a 4 bit quant, which is in some ways a sweet spot, it loses a small amount of performance in exchange for a very large reduction in memory usage compared to something like fp16. I think it's perfectly reasonable to expect that ChatGPT also uses the same technique, but we don't know because their SOTA models aren't open. https://arxiv.org/pdf/2508.10925

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gpt-oss-120b & gpt-oss-20b Model Card · HackerPapers discussions

gpt-oss-120b & gpt-oss-20b Model Card — mentioned by lambda