OpenAI have stopped posting benchmarks for their new models, but they should do better in AIME 2025 and Codeforces. (Picture: OpenAI)Available for paid tiers today, GPT-5.1 Instant will become the new default model in ChatGPT.
OpenAI are uncharacteristically not posting any benchmarks on their launch page, simply describing both models as «more capable and useful,» and «more intelligent.»
Both models are also supposed to be «warmer and more emphatic.»
People want friendly bots — We heard clearly from users that great AI should not only be smart, but also enjoyable to talk to, OpenAI writes.