GPT-5.1-Codex vs Nova 2 Lite
OpenAI vs Amazon — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1-Codex has the higher intelligence index (88.2 vs 82.1)
- •Nova 2 Lite is cheaper ($0.30 vs $1.25 per 1M input)
- •Nova 2 Lite is faster
- •Nova 2 Lite has a larger context window (1M)
| GPT-5.1-Codex | Nova 2 Lite | |
|---|---|---|
| Intelligence index | 88.2 | 82.1 |
| Developer | OpenAI | Amazon |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 400,000 tokens | 1,000,000 tokens |
| Input price | $1.25 / 1M | $0.30 / 1M |
| Output price | $10.00 / 1M | $2.50 / 1M |
| Speed | 188 tok/s | 229 tok/s |
| Released | November 13, 2025 | December 2, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | Text, Image, Video |
| Output modalities | Text | Text |
Shared benchmarks
GPT-5.1-Codex
Nova 2 Lite
AIME 2025
95.7
94.3
GPQA Diamond
86
81.1
Humanity’s Last Exam
23.4
10.9
LiveCodeBench
84.9
71.1
MMLU-Pro
86
81.8