Compare/GPT-5.1 (high) vs Nova 2.0 Pro Preview (low)

GPT-5.1 (high)vsNova 2.0 Pro Preview (low)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

OpenAI

GPT-5.1 (high)

Input
$1.25/M
Output
$10/M
Speed
87 tok/s
TTFT
31.07s
Amazon

Nova 2.0 Pro Preview (low)

Input
$1.25/M
Output
$10/M
Speed
148 tok/s
TTFT
5.85s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Nova 2.0 Pro Preview (low)
Lower Latency
Nova 2.0 Pro Preview (low)
Benchmarks (10-1)
GPT-5.1 (high)

Pricing Comparison

MetricGPT-5.1 (high)Nova 2.0 Pro Preview (low)
Input ($/M tokens)$1.25$1.25
Output ($/M tokens)$10$10
Cost for 1M input + 100K output tokens:
GPT-5.1 (high)$2.25
Nova 2.0 Pro Preview (low)$2.25

Speed Comparison

Output Speed (tokens/s) — higher is better
GPT-5.1 (high)
87 tok/s
Nova 2.0 Pro Preview (low)
148 tok/s
Time to First Token (seconds) — lower is better
GPT-5.1 (high)
31.07s
Nova 2.0 Pro Preview (low)
5.85s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
47.731.9
Coding Index
44.724.5
Math Index
94.063.3
GPQA Diamond
87.3%75.1%
MMLU-Pro
87.0%82.2%
LiveCodeBench
86.8%63.8%
AIME 2025
94.0%63.3%
MATH-500
Humanity's Last Exam
26.5%5.2%
SciCode
43.3%38.7%
IFBench
72.9%79.6%
TerminalBench
45.5%17.4%
GPT-5.1 (high)10 wins
1 winsNova 2.0 Pro Preview (low)

Frequently Asked Questions

Which is cheaper, GPT-5.1 (high) or Nova 2.0 Pro Preview (low)?

Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.

Which model performs better on benchmarks?

GPT-5.1 (high) wins 10 out of 12 benchmarks compared to 1 for Nova 2.0 Pro Preview (low). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Nova 2.0 Pro Preview (low) generates tokens faster at 148 tok/s vs 87 tok/s. However, Nova 2.0 Pro Preview (low) has lower time-to-first-token (5.85s vs 31.07s).

When should I use GPT-5.1 (high) vs Nova 2.0 Pro Preview (low)?

Choose based on your priorities: both are similarly priced, GPT-5.1 (high) for stronger benchmark performance, and Nova 2.0 Pro Preview (low) for faster generation. For latency-sensitive apps, check the TTFT comparison above.