Models›Prism ML›Ternary Bonsai 2 9B
P

Ternary Bonsai 2 9B

by Prism ML · released Oct 16, 2026 · 1 provider
Model IDprism-ml/ternary-bonsai-2-9b
Free plan eligibleVisionReasoningTool callingStructured outputsOpen weights · Apache 2.0

Ternary Bonsai 2 9B is PrismML’s compact, open-weight language model for conversational AI, reasoning, and tool use.

MODEL PRICING

Standard pricing

Run this model at its standard rate. Cheap mode currently has no separate discount.

Input tokens$0.084per 1 million tokens
Output tokens$0.1365per 1 million tokens

API routing ceilings, including your 5% Free-plan fee. Included usage applies first, then prepaid credits. Cached tokens and tools can have separate charges.

Looking for lower rates? Browse models with verified discounts →
Context
262k
tokens
Max output
66k
tokens per reply
Input
$0.08
provider baseline / 1M; fee applies
Output
$0.13
provider baseline / 1M; fee applies

Choose how to use Ternary Bonsai 2 9B

Playground

Try prompts in your browser, create an agent, and see the cost of each reply. Your selected model carries into setup.

Model capabilities below describe the underlying model. Available playground features depend on its provider.

API

Connect your app with a Gizmo API key. Choose fastest or cheapest, stream text responses, and inspect timing, tokens, and charges in request logs.

A current API route is listed for this exact model. Gateway configuration is required for live calls.

Provider price + a transparent platform fee

RateProvider baselineFree plan · 5% feePaid plan · 4% fee
Input / 1M tokens$0.08$0.084$0.0832
Output / 1M tokens$0.13$0.1365$0.1352
API input / 1M tokens$0.08$0.084$0.0832
API output / 1M tokens$0.13$0.1365$0.1352

Legacy chat image rates use the catalog baseline. The dedicated image playground shows separate estimates and settles the provider’s metered usage. API rates are current routing ceilings; final API charges use provider-reported cost plus your fee. Cheapest routing compares eligible OpenRouter and Cheaper Inference rates for the same model; savings are not guaranteed. Cached input or other provider charges may differ. Compare all model rates and verified discounts →

How your plan pays for usage

API and playground share one included allowance. Usage including the fee draws from that allowance first, then your prepaid credits. Plans bill monthly; included usage resets weekly: Free $1, Starter $5, Growth $25, Scale $50.

A $1 provider charge becomes $1.05 on Free or $1.04 on a paid plan before included usage is applied. Plan eligibility still applies in the playground.

Free models and limits

Zero-cost models stay $0, including the fee, and do not consume your dollar allowance. Free accounts can make 1,000 free-model API requests per calendar month, resetting in UTC. Admitted requests count even if the provider fails.

Free includes 20 API requests/minute and 6 playground messages/minute. Paid plans raise these limits. See plan limits.

Before a text API request, Gizmo temporarily reserves included usage and, if necessary, prepaid credit for the model’s full context plus your maximum output. Image jobs reserve twice their displayed estimate. Unused funds return after metering. This hold can exceed the final charge; unconfirmed usage remains marked pending.

Overview

Ternary Bonsai 2 9B is PrismML’s compact, open-weight language model for conversational AI, reasoning, and tool use. Built on Qwen3.5, it uses ternary weights packed into 2 bits for efficient inference. It accepts text and image input. Its 262K-token context window supports long conversations and document-heavy workflows, with up to 64K output tokens per response.

Capabilities

Input
✍️ Text🖼️ Images
Output
✍️ Text
✓ Tool calling✓ Structured outputs✓ JSON mode✓ Reasoning✓ Reasoning traces✓ Seeded sampling✓ Log probabilities✓ Stop sequences

Reasoning is on by default.

Sampling controls: temperature, top_p, top_k, max_tokens, frequency_penalty, presence_penalty, repetition_penalty. Defaults: top_k 20, top_p 0.95, temperature 1.

Pricing on Gizmo

These are provider baseline rates before Gizmo’s 5% Free-plan or 4% paid-plan fee. Your included usage covers charges first; overage uses prepaid credits. See the fee-inclusive comparison above.

Provider baseline rates

Input
$0.08 / 1M
Cached input
$0.04 / 1M
Output
$0.13 / 1M

Examples before the platform fee

Typical chat turn
$0.00022 2k in · 500 out
$1 of input
≈ 12.5M tokens
$1 of output
≈ 7.69M tokens
Full context, once
$0.021
Free plan eligible. This model sits at or below the free tier’s price ceiling: $1 of usage covered every week, no card needed. Paid plans cover $5 to $50 weekly and add $25 in bonus credits.

Providers and pricing

One way to run Ternary Bonsai 2 9B on Gizmo.

ProviderRouteInput / 1MOutput / 1MContextUptime 24h
Darkbloom · int4Lowest priceOpenRouter$0.08$0.13262k100%

Rates are each provider’s, per million tokens, before Gizmo’s 5% (Free) or 4% (paid) fee. “Cheapest” routing starts at the top of this list; “Fastest” starts with the model’s maker.

Run Ternary Bonsai 2 9B in under a minute

1

Create your account

Sign up with just an email. Start on the free tier with no card, or pick a paid plan for a bigger weekly allowance and $25 in bonus credits.

2

Your agent is ready

Ternary Bonsai 2 9B is preselected as the brain of your first agent. Give it a name and a system prompt, or keep the defaults.

3

Chat, research, create

Live web research and image generation are built in. Every reply shows what it cost, and you can switch models anytime.

Sources. OpenRouter · Hugging Face. Verified Oct 27, 2026. Baseline prices are the provider’s list prices at sync time. Gizmo adds a 5% fee on Free or 4% on paid plans; included usage is applied before overage credits.