Gemini 1.0 Pro vs GPT-5.1
Google vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 34)
- •Gemini 1.0 Pro is cheaper ($0.50 vs $1.25 per 1M input)
- •Gemini 1.0 Pro is faster
- •GPT-5.1 has a larger context window (400K)
| Gemini 1.0 Pro | GPT-5.1 | |
|---|---|---|
| Intelligence index | 34 | 89 |
| Developer | OpenAI | |
| Type | LLM | LLM |
| Access | API only | API only |
| Context window | 32,760 tokens | 400,000 tokens |
| Input price | $0.50 / 1M | $1.25 / 1M |
| Output price | $1.50 / 1M | $10.00 / 1M |
| Speed | 120 tok/s | 115 tok/s |
| Released | February 15, 2024 | November 12, 2025 |
| Parameters | — | — |
| Input modalities | — | Text, Image |
| Output modalities | — | Text |
Shared benchmarks
Gemini 1.0 Pro
GPT-5.1
GPQA Diamond
27.9
88.1
Humanity’s Last Exam
4.6
26.5
LiveCodeBench
11.6
86.8
MMLU-Pro
43.1
87