GPT-5.4 nano vs Mercury 2: Specs & Benchmark Comparison
| Characteristic | GPT-5.4 nano | Mercury 2 |
|---|---|---|
| Company | OpenAI | Inception |
| Release Date | March 1, 2026 | February 1, 2026 |
| Parameters | — | — |
| Multimodal | Yes | No |
| Context (input) | 400K | — |
| Context (output) | 128K | — |
| Input Price / 1M | $0.12 | — |
| Output Price / 1M | $1.50 | — |
| Average Score | 0.7 | 0.7 |
| Benchmarks | ||
| GPQA | 0.8 | 0.7 |
Visual Benchmark Comparison
GPT-5.4 nano
Mercury 2
GPQA0.8 vs 0.7
0.8
0.7
Verdict
GPT-5.4 nano leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.4 nano — 0.7, Mercury 2 — 0.7.
Recency
GPT-5.4 nano is newer: released 3/1/2026 vs 2/1/2026.
More About These Models
Related Comparisons
The GPT-5.4 nano and Mercury 2 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.4 nano or Mercury 2 page. See also the complete list of AI model comparisons.