Kimi K2 0905 is cheaper than GPT-5.1 Chat at $0.6/M vs $1.25/M input tokens.
| Spec | GPT-5.1 Chat | Kimi K2 0905 |
|---|---|---|
| Input price | $1.25/M tokens | $0.6/M tokens |
| Output price | $10/M tokens | $2.5/M tokens |
| Context window | 128K tokens | 262K tokens |
| Released | Nov 2025 | Sep 2025 |
Not enough votes to call it. On the specs, nothing separates them.
Kimi K2 0905 costs 4.0x less per token.
Kimi K2 0905 is cheaper on both — 2.1× input, 4.0× output
Kimi K2 0905 uses 14.6x more emoji
Kimi K2 0905 is cheaper than GPT-5.1 Chat at $0.6/M vs $1.25/M input tokens.
| Spec | GPT-5.1 Chat | Kimi K2 0905 |
|---|---|---|
| Input price | $1.25/M tokens | $0.6/M tokens |
| Output price | $10/M tokens | $2.5/M tokens |
| Context window | 128K tokens | 262K tokens |
| Released | Nov 2025 | Sep 2025 |
Not enough votes to call it. On the specs, nothing separates them.
Kimi K2 0905 costs 4.0x less per token.
Kimi K2 0905 is cheaper on both — 2.1× input, 4.0× output
Kimi K2 0905 uses 14.6x more emoji