GPT-5.1-Codex-Mini is cheaper than Mercury at $1.5/M vs $10/M input tokens.
| Spec | GPT-5.1-Codex-Mini | Mercury |
|---|---|---|
| Input price | $1.5/M tokens | $10/M tokens |
| Output price | $6/M tokens | $10/M tokens |
| Context window | 400K tokens | 32K tokens |
| Released | Nov 2025 | Jun 2025 |
Not enough votes to call it. On the specs, GPT-5.1-Codex-Mini has the edge: bigger model tier, newer, bigger context window, major provider backing.
GPT-5.1-Codex-Mini is cheaper on both — 6.7× input, 1.7× output
Mercury uses 4.3x more emoji
GPT-5.1-Codex-Mini is cheaper than Mercury at $1.5/M vs $10/M input tokens.
| Spec | GPT-5.1-Codex-Mini | Mercury |
|---|---|---|
| Input price | $1.5/M tokens | $10/M tokens |
| Output price | $6/M tokens | $10/M tokens |
| Context window | 400K tokens | 32K tokens |
| Released | Nov 2025 | Jun 2025 |
Not enough votes to call it. On the specs, GPT-5.1-Codex-Mini has the edge: bigger model tier, newer, bigger context window, major provider backing.
GPT-5.1-Codex-Mini is cheaper on both — 6.7× input, 1.7× output
Mercury uses 4.3x more emoji