OpenAI’s GPT-5 rollout is not going smoothly

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The launch of OpenAI’s long anticipated new model, GPT-5, is off to a rocky start to say the least.

Even forgiving errors in charts and voice demoes during yesterday’s livestreamed presentation of the new model (actually four separate models, and a ‘Thinking’ mode that can be engaged for three of them), a number of user reports have emerged since GPT-5’s release showing it erring badly when solving relatively simple problems that preceding OpenAI models — and rivals from competing AI labs — answer correctly.

For example, data scientist Colin Fraser posted screenshots showing GPT-5 getting a math proof wrong (whether 8.888 repeating is equal to 9 — it is of course, not).

Wow, I was just playing around before but it actually is ...