PrismML: Ternary Bonsai 2 27B

27B

Bonsai 2 27B is a 27B-parameter reasoning model from PrismML derived from Qwen3.8-27B.

Context
262K
Max output
33K
Input price
$0.08/1M tokens
Output price
$0.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode

Details

Model IDprism-ml/ternary-bonsai-2-27b
Provider OpenRouter
Creator prism-ml
Family—
License—
Status—
Type—
Input modalitiestext, image
Output modalitiestext
Open weight—
Parameters27B
Architecture—
Context window262K tokens
Max input—
Max output33K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.08
Output
$0.5
Cache write
—
Cache read
$0.04
Batch in
—
Batch out
—

API

GET/v1/models/openrouter/prism-ml/ternary-bonsai-2-27b

PrismML: Ternary 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.

Changes · 3 entries
prism-ml/ternary-bonsai-2-27bcreateca7a400Nov 2, 2026, 03:02 AM
prism-ml/ternary-bonsai-2-27bupdate1a66bb0Sep 29, 2026, 06:40 AM
pricingcached input$0.038
prism-ml/ternary-bonsai-2-27bcreate3170597Sep 19, 2026, 06:34 AM