Compare/GPT-5 Codex (high) vs Nova 2.0 Pro Preview (Non-reasoning)

GPT-5 Codex (high)vsNova 2.0 Pro Preview (Non-reasoning)

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

OpenAI

GPT-5 Codex (high)

Input
$1.25/M
Output
$10/M
Speed
216 tok/s
TTFT
12.05s
Amazon

Nova 2.0 Pro Preview (Non-reasoning)

Input
$1.25/M
Output
$10/M
Speed
163 tok/s
TTFT
0.48s

Winner by Category

Cheaper
Tie
Faster (tok/s)
GPT-5 Codex (high)
Lower Latency
Nova 2.0 Pro Preview (Non-reasoning)
Benchmarks (11-0)
GPT-5 Codex (high)

Pricing Comparison

MetricGPT-5 Codex (high)Nova 2.0 Pro Preview (Non-reasoning)
Input ($/M tokens)$1.25$1.25
Output ($/M tokens)$10$10
Cost for 1M input + 100K output tokens:
GPT-5 Codex (high)$2.25
Nova 2.0 Pro Preview (Non-reasoning)$2.25

Speed Comparison

Output Speed (tokens/s) — higher is better
GPT-5 Codex (high)
216 tok/s
Nova 2.0 Pro Preview (Non-reasoning)
163 tok/s
Time to First Token (seconds) — lower is better
GPT-5 Codex (high)
12.05s
Nova 2.0 Pro Preview (Non-reasoning)
0.48s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
44.623.1
Coding Index
38.920.5
Math Index
98.730.7
GPQA Diamond
83.7%63.6%
MMLU-Pro
86.5%77.2%
LiveCodeBench
84.0%47.3%
AIME 2025
98.7%30.7%
MATH-500
Humanity's Last Exam
25.6%4.0%
SciCode
40.9%28.1%
IFBench
74.1%52.0%
TerminalBench
37.9%16.7%
GPT-5 Codex (high)11 wins
0 winsNova 2.0 Pro Preview (Non-reasoning)

Frequently Asked Questions

Which is cheaper, GPT-5 Codex (high) or Nova 2.0 Pro Preview (Non-reasoning)?

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

Which model performs better on benchmarks?

GPT-5 Codex (high) wins 11 out of 12 benchmarks compared to 0 for Nova 2.0 Pro Preview (Non-reasoning). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-5 Codex (high) generates tokens faster at 216 tok/s vs 163 tok/s. However, Nova 2.0 Pro Preview (Non-reasoning) has lower time-to-first-token (0.48s vs 12.05s).

When should I use GPT-5 Codex (high) vs Nova 2.0 Pro Preview (Non-reasoning)?

Choose based on your priorities: both are similarly priced, GPT-5 Codex (high) for stronger benchmark performance, and GPT-5 Codex (high) for faster generation. For latency-sensitive apps, check the TTFT comparison above.