There will be fewer moralizing preambles and refusals to answer, OpenAI says, but we're still waiting for benchmarks.

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The New Stack

OpenAI launched GPT-5.3 Instant, the first model in its GPT-5.3 family, with Pro and Thinking versions coming soon. Key improvements include reduced moralizing preambles and unnecessary refusals, a more natural conversation style, better web search integration with less overindexing on results, and hallucination reductions of 26.8% with web context and 19.7% without. No benchmarks have been published yet.

OpenAI’s GPT-5.3 Instant promises to dial down the cringe