The Index / NanoGPT / Ternary Bonsai 2 27B Ternary Bonsai 2 27B by NanoGPT · listed Sep 2026R T V W
Ternary Bonsai 2 27B is a 27B-parameter reasoning model from PrismML derived from Qwen3.8-27B. It supports coding, mathematics, tool calling, and image understanding with a 262K-token context window.
Current rates USD per 1M tokens Input $0.075
Output $0.50
Cache read $0.0375
Cache write —
Against the market Input price vs. maker flagships ($/1M tokens) Ternary Bonsai 2 27B Ternary Bonsai 2 27B: $0.075 per 1M tokens $0.075 DeepSeek V4 Flash Vision Exp DeepSeek V4 Flash Vision Exp: $0.15 per 1M tokens $0.15 Qwen3.8 Omni Flash Qwen3.8 Omni Flash: $0.15 per 1M tokens $0.15 Gemini 3.8 Flash Gemini 3.8 Flash: $0.75 per 1M tokens $0.75 GLM-5.3 GLM-5.3: $1.40 per 1M tokens $1.40 Claude Sonnet 5.5 Claude Sonnet 5.5: $2.00 per 1M tokens $2.00 GPT-6.1 Sol GPT-6.1 Sol: $2.00 per 1M tokens $2.00 Grok 4.7 Grok 4.7: $2.00 per 1M tokens $2.00 Output price vs. maker flagships ($/1M tokens) Qwen3.8 Omni Flash Qwen3.8 Omni Flash: $0.47 per 1M tokens $0.47 Ternary Bonsai 2 27B Ternary Bonsai 2 27B: $0.50 per 1M tokens $0.50 DeepSeek V4 Flash Vision Exp DeepSeek V4 Flash Vision Exp: $0.60 per 1M tokens $0.60 Gemini 3.8 Flash Gemini 3.8 Flash: $3.75 per 1M tokens $3.75 GLM-5.3 GLM-5.3: $4.40 per 1M tokens $4.40 Grok 4.7 Grok 4.7: $6.00 per 1M tokens $6.00 Claude Sonnet 5.5 Claude Sonnet 5.5: $10.00 per 1M tokens $10.00 GPT-6.1 Sol GPT-6.1 Sol: $10.00 per 1M tokens $10.00 On the record
Model id prism-ml/ternary-bonsai-2-27b
Context window 262K tokens
Max output 33K tokens
Input modalities text, image
Output modalities text
Reasoning yes
Tool calls yes
Open weights yes
Knowledge cutoff —
Released 2026-09-18
Last updated 2026-09-18 ← All NanoGPT listings