GPT-5.1 vs Llama 3.1 70B Instruct
OpenAI vs Meta — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 56)
- •Llama 3.1 70B Instruct is cheaper ($0.40 vs $1.25 per 1M input)
- •Llama 3.1 70B Instruct is faster
- •GPT-5.1 has a larger context window (400K)
| GPT-5.1 | Llama 3.1 70B Instruct | |
|---|---|---|
| Intelligence index | 89 | 56 |
| Developer | OpenAI | Meta |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | 400,000 tokens | 131,072 tokens |
| Input price | $1.25 / 1M | $0.40 / 1M |
| Output price | $10.00 / 1M | $0.40 / 1M |
| Speed | 115 tok/s | 1204 tok/s |
| Released | November 12, 2025 | July 23, 2024 |
| Parameters | — | — |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
Shared benchmarks
GPT-5.1
Llama 3.1 70B Instruct
AIME 2025
94
4
GPQA Diamond
88.1
41.7
Humanity’s Last Exam
26.5
4.6
LiveCodeBench
86.8
23.2
MMLU-Pro
87
66.4