Mercury 2 is cheaper than GPT-5.6 Luna Pro at $0.25/M vs $1/M input tokens.
| Spec | GPT-5.6 Luna Pro | Mercury 2 |
|---|---|---|
| Input price | $1/M tokens | $0.25/M tokens |
| Output price | $6/M tokens | $0.75/M tokens |
| Context window | 1.1M tokens | 128K tokens |
| Released | Jul 2026 | Mar 2026 |
Not enough votes to call it. On the specs, GPT-5.6 Luna Pro has the edge: newer, bigger context window, major provider backing.
Mercury 2 costs 8.0x less per token.
Mercury 2 is cheaper on both — 4.0× input, 8.0× output
GPT-5.6 Luna Pro uses 6.6x more emoji
Mercury 2 is cheaper than GPT-5.6 Luna Pro at $0.25/M vs $1/M input tokens.
| Spec | GPT-5.6 Luna Pro | Mercury 2 |
|---|---|---|
| Input price | $1/M tokens | $0.25/M tokens |
| Output price | $6/M tokens | $0.75/M tokens |
| Context window | 1.1M tokens | 128K tokens |
| Released | Jul 2026 | Mar 2026 |
Not enough votes to call it. On the specs, GPT-5.6 Luna Pro has the edge: newer, bigger context window, major provider backing.
Mercury 2 costs 8.0x less per token.
Mercury 2 is cheaper on both — 4.0× input, 8.0× output
GPT-5.6 Luna Pro uses 6.6x more emoji