PrismML: Ternary Bonsai2 9B

PrismML: Ternary Bonsai2 9B

byPrismML

Ternary Bonsai2 9B is a reasoning model from PrismML released on Oct 23, 2026. It reads text and writes text, with a 262K token context window and up to 66K tokens per reply.

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It costs $0.08 per million input tokens and $0.13 per million output tokens. Cached input bills at $0.04, 50% less than fresh input.

It supports tool calling and prompt caching, and its weights are open, so you can host it yourself.

Modalities
In / out price
$0.08 / $0.13 per 1M
Context
262K
Max output
66K
Released
Oct 23, 2026
Knowledge cutoff
n/a
  • Tool calling
  • Structured output
  • Reasoning
  • Prompt caching
  • Open weights
  • Free to use

Ternary Bonsai2 9B pricing

USD, as listed on Oct 24, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.

Input$0.08 / 1M tokens
Output$0.13 / 1M tokens
Cached input (read)$0.04 / 1M tokens

What Ternary Bonsai2 9B costs per month

Pick a workload close to yours or type your own volumes.

Ternary Bonsai2 9B per month
$5.57
Without caching
$7.37
Per request
$0.0002

Supported request parameters

What you can set when you call Ternary Bonsai2 9B through an OpenAI compatible API.

  • Toolstools
  • Reasoningreasoning

Alternatives to Ternary Bonsai2 9B

Models that take the same inputs and call tools, closest in price, cheaper ones first.

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Ternary Bonsai2 9B questions

How much does the Ternary Bonsai2 9B API cost?

$0.08 per million input tokens and $0.13 per million output tokens, with cached input at $0.04. The estimator on this page turns that into a monthly bill for your own workload.

What is the context window of Ternary Bonsai2 9B?

262,144 tokens of input, and it can write up to 65,536 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.

Does Ternary Bonsai2 9B support tool calling?

Yes. It accepts tool definitions, which is what an agent needs to call your APIs.

Is Ternary Bonsai2 9B open source?

Its weights are published, so you can run it on your own hardware or a cloud of your choice. Read the license before commercial use.

When was Ternary Bonsai2 9B released?

Oct 23, 2026.

Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 24, 2026. The summary is written from these facts.