Ternary Bonsai 2 27B is cheaper than OpenAI o4-mini at $0.075/M vs $1.1/M input tokens.
| Spec | OpenAI o4-mini | Ternary Bonsai 2 27B |
|---|---|---|
| Input price | $1.1/M tokens | $0.075/M tokens |
| Output price | $4.4/M tokens | $0.5/M tokens |
| Context window | — | 262K tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Apr 2025 | Sep 2026 |
Not enough votes to call it. On the specs, nothing separates them.
Ternary Bonsai 2 27B costs 8.8x less per token.
Ternary Bonsai 2 27B is cheaper on both: 15× input, 8.8× output.
Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.