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  1. Models
  2. Text
  3. PrismML

Ternary Bonsai2 9B

Ternary Bonsai2 9B is Prism ML’s open-weight model derived from Qwen3.5-9B with ternary language weights. It accepts text and generates text, supports reasoning and tool calling, and offers a shared 262,144-token context window with up to 65,536 output tokens. Thinking is enabled by default and can be turned off.

  • Reasoning
  • Tool Calling

Added Oct 23, 2026

Model weights

Pricing

Auto routing · per 1M tokens
Input
$0.08
Output
$0.13
Cache read
$0.04
Compare provider prices

Specifications

Context window
262.1K
Max output
65.5K
Parameters
9B

Benchmarks

No public benchmark scores for this model yet.

Providers

Choose or restrict providers with the API. Provider-selection prices include the selection markup. Provider selection guide · Pricing API (JSON, USD per 1K tokens)

Auto
Auto (Anonymized)
$0.08$0.13$0.04N/AN/A
Darkbloom
Darkbloom
TEE attested
INT4
GLB
$0.084$0.136$0.042N/AN/A
Privacy:No training on prompts
Batch API
ProviderInputOutputCached input
Auto
Autoprism-ml/ternary-bonsai-2-9b
$0.08/M$0.13/M$0.04/M

Batch rows for this model use normal routing and cost the same as standard API requests. Set provider in a row to choose a provider.

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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.

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