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

GPT-5 Codex (high)vsNova 2.0 Pro Preview (medium)

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 (medium)

Input
$1.25/M
Output
$10/M
Speed
144 tok/s
TTFT
14.17s

Winner by Category

Cheaper
Tie
Faster (tok/s)
GPT-5 Codex (high)
Lower Latency
GPT-5 Codex (high)
Benchmarks (9-2)
GPT-5 Codex (high)

Pricing Comparison

MetricGPT-5 Codex (high)Nova 2.0 Pro Preview (medium)
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 (medium)$2.25

Speed Comparison

Output Speed (tokens/s) — higher is better
GPT-5 Codex (high)
216 tok/s
Nova 2.0 Pro Preview (medium)
144 tok/s
Time to First Token (seconds) — lower is better
GPT-5 Codex (high)
12.05s
Nova 2.0 Pro Preview (medium)
14.17s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
44.635.7
Coding Index
38.930.4
Math Index
98.789.0
GPQA Diamond
83.7%78.5%
MMLU-Pro
86.5%83.0%
LiveCodeBench
84.0%73.0%
AIME 2025
98.7%89.0%
MATH-500
Humanity's Last Exam
25.6%8.9%
SciCode
40.9%42.7%
IFBench
74.1%79.0%
TerminalBench
37.9%24.2%
GPT-5 Codex (high)9 wins
2 winsNova 2.0 Pro Preview (medium)

Frequently Asked Questions

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

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 9 out of 12 benchmarks compared to 2 for Nova 2.0 Pro Preview (medium). 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 144 tok/s. GPT-5 Codex (high) also has lower time-to-first-token (12.05s vs 14.17s).

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

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.