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Comment by attentive | Hacker News Reader

"Notably, GPT‑5 with minimal reasoning is a different model than the non-reasoning model in ChatGPT, and is better tuned for developers. The non-reasoning model used in ChatGPT is available as gpt-5-chat-latest."

hmm, they should call it gpt-5-chat-nonreasoning or something.

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Setting "reasoning_effort" to "minimal" translates to zero reasoning tokens from what I've seen. So you can get non-reasoning from both "gpt-5" and "gpt-5-chat-latest"

fwiw, I asked chatgpt:

  "gpt-5-chat-latest is described by OpenAI as a non-reasoning GPT-5 variant—meaning it doesn’t engage in the extended “thinking token” process at all.

  gpt-5 with reasoning_effort="minimal" still uses some internal reasoning tokens—just very few—so it’s not truly zero-reasoning.

  The difference: "minimal" is lightweight reasoning, while non-reasoning is essentially no structured chain-of-thought beyond the basic generation loop."

If it did any reasoning then it would be billed as part of the reasoning tokens

Never ask it about itself

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