Mercury 2.5 Preview is cheaper than GPT-5.4 Nano at $0.04/M vs $0.2/M input tokens.
| Spec | GPT-5.4 Nano | Mercury 2.5 Preview |
|---|---|---|
| Input price | $0.2/M tokens | $0.04/M tokens |
| Output price | $1.25/M tokens | $0.15/M tokens |
| Context window | 400K tokens | 260K tokens |
| Released | Mar 2026 | Aug 2026 |
Not enough votes to call it. On the specs, nothing separates them.
Mercury 2.5 Preview costs 8.3x less per token.
Mercury 2.5 Preview is cheaper on both — 5.0× input, 8.3× output
Mercury 2.5 Preview is cheaper than GPT-5.4 Nano at $0.04/M vs $0.2/M input tokens.
| Spec | GPT-5.4 Nano | Mercury 2.5 Preview |
|---|---|---|
| Input price | $0.2/M tokens | $0.04/M tokens |
| Output price | $1.25/M tokens | $0.15/M tokens |
| Context window | 400K tokens | 260K tokens |
| Released | Mar 2026 | Aug 2026 |
Not enough votes to call it. On the specs, nothing separates them.
Mercury 2.5 Preview costs 8.3x less per token.
Mercury 2.5 Preview is cheaper on both — 5.0× input, 8.3× output