Nova Premier 1.0 vs GPT-5

Compare Nova Premier 1.0 by Amazon against GPT-5 by OpenAI, in 2 community votes, nova premier 1.0 and gpt-5 are closely matched, context windows of 1.0M vs 400K, tested across 45 shared challenges. Updated February 2026.

In 2 community votes, Nova Premier 1.0 and GPT-5 are closely matched. Nova Premier 1.0 and GPT-5 perform similarly across challenge categories. Based on blind community voting from the RIVAL open dataset of 2+ human preference judgments for this pair.