Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | GPT-5.1 Codex (high) | Nova 2.0 Pro Preview (low) |
|---|---|---|
| Input ($/M tokens) | $1.25 | $1.25 |
| Output ($/M tokens) | $10 | $10 |
Data from Artificial Analysis API — 12 benchmarks
Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.
GPT-5.1 Codex (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.
Nova 2.0 Pro Preview (low) generates tokens faster at 148 tok/s vs 139 tok/s. However, Nova 2.0 Pro Preview (low) has lower time-to-first-token (5.85s vs 7.13s).
Choose based on your priorities: both are similarly priced, GPT-5.1 Codex (high) for stronger benchmark performance, and Nova 2.0 Pro Preview (low) for faster generation. For latency-sensitive apps, check the TTFT comparison above.