# Ternary Bonsai 2 27B: AI model fact sheet

- **Provider:** prism-ml
- **Released:** 2026-09-18
- **Context window:** 262,144 tokens
- **Parameters:** 27B
- **API pricing:** $0.07 / 1M input, $0.50 / 1M output
- **OpenRouter ID:** prism-ml/ternary-bonsai-2-27b
- **Capabilities:** conversation, reasoning, code-generation, tool-use

PrismML reasoning model derived from Qwen3.8-27B, using ternary weight compression for efficient inference. Supports coding, mathematics, tool calling, and image understanding with a 262K context window.

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/ternary-bonsai-2-27b