PrismML Bonsai 2 27B
prism-ml/ternary-bonsai-2-27b
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. Ternary compression shrinks the language-model weights to roughly 8.5 GB while retaining 98.2% of the base model's average score across PrismML's 14 thinking-mode benchmarks, enabling efficient inference on consumer hardware. The model thinks by default and defaults to xhigh reasoning effort.
Model specifications
- Input
- text, image
- Output
- text
- Context
- 262,144 tokens
- Max output
- 32,768 tokens
- Input price
- $0.075 / 1M tokens
- Output price
- $0.5 / 1M tokens
- Released
- 2026-09-21
Capabilities
- Streaming
- Function calling
- Vision
- JSON mode
Provider pricing, discounts and data privacy
Compare effective provider prices, published discounts, regions, retention policies, training use, compliance, and privacy links by service tier.
Standard service tier
1 available provider · tier input average $0.075 / 1M tokens · tier output average $0.5 / 1M tokens
Darkbloom
Tier: Standard · Region: US
Pricing
- Input
- $0.075 / 1M tokens
- Output
- $0.5 / 1M tokens
No provider discount is currently published.
Data privacy and compliance
- Region
- US
- Zero data retention
- No
- Used for training
- No
- Data collection
- Moderated
- No
- GDPR compliant
- No
- HIPAA compliant
- No
- SOC 2 certified
- No
- BYOK supported
- No
Frequently asked questions
- What is PrismML Bonsai 2 27B?
- 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. Ternary compression shrinks the language-model weights to roughly 8.5 GB while retaining 98.2% of the base model's average score across PrismML's 14 thinking-mode benchmarks, enabling efficient inference on consumer hardware. The model thinks by default and defaults to xhigh reasoning effort.
- How much does PrismML Bonsai 2 27B cost?
- Input costs start at $0.075 / 1M tokens and output costs start at $0.5 / 1M tokens. Provider-level prices vary by service tier.
- What is the context length of PrismML Bonsai 2 27B?
- PrismML Bonsai 2 27B supports a 262,144 token context window and up to 32,768 output tokens.
- What capabilities does PrismML Bonsai 2 27B support?
- PrismML Bonsai 2 27B supports Streaming, Function calling, Vision, JSON mode.
- Which providers offer PrismML Bonsai 2 27B?
- PrismML Bonsai 2 27B is available from Darkbloom.
- How do providers handle data privacy for PrismML Bonsai 2 27B?
- 1 of 1 providers report that customer data is not used for training, and 0 offer zero-data-retention routing. Retention, compliance, and privacy-policy links are listed per provider.