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GPT-5.1 vs Nova 2.0 Omni

OpenAI vs Amazon — benchmarks, pricing, and capabilities side by side.

  • GPT-5.1 has the higher intelligence index (89 vs 78.2)
  • Nova 2.0 Omni is cheaper ($0.30 vs $1.25 per 1M input)
GPT-5.1Nova 2.0 Omni
Intelligence index8978.2
DeveloperOpenAIAmazon
TypeLLMLLM
AccessAPI only
Context window400,000 tokens
Input price$1.25 / 1M$0.30 / 1M
Output price$10.00 / 1M$2.50 / 1M
Speed115 tok/s
ReleasedNovember 12, 2025November 26, 2025
Parameters
Input modalitiesText, Image
Output modalitiesText

Shared benchmarks

GPT-5.1
Nova 2.0 Omni
AIME 2025
94
89.7
GPQA Diamond
88.1
76
Humanity’s Last Exam
26.5
6.8
LiveCodeBench
86.8
66
MMLU-Pro
87
80.9