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GPT-5.1 vs Llama 2 Chat 7B

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

  • GPT-5.1 has the higher intelligence index (89 vs 11.3)
  • Llama 2 Chat 7B is cheaper ($0.10 vs $1.25 per 1M input)
  • GPT-5.1 is faster
GPT-5.1Llama 2 Chat 7B
Intelligence index8911.3
DeveloperOpenAIMeta
TypeLLMLLM
AccessAPI only
Context window400,000 tokens
Input price$1.25 / 1M$0.10 / 1M
Output price$10.00 / 1M$0.30 / 1M
Speed115 tok/s113 tok/s
ReleasedNovember 12, 2025July 18, 2023
Parameters
Input modalitiesText, Image
Output modalitiesText

Shared benchmarks

GPT-5.1
Llama 2 Chat 7B
GPQA Diamond
88.1
22.7
Humanity’s Last Exam
26.5
5.8
LiveCodeBench
86.8
0.2
MMLU-Pro
87
16.4