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PrismML: Ternary Bonsai 2 9B pricing

Ternary Bonsai 2 9B is PrismML’s compact, open-weight language model for conversational AI, reasoning, and tool use. PrismML: Ternary Bonsai 2 9B from OpenRouter costs $0.080 per 1M input tokens and $0.130 per 1M output tokens. Cached input is $0.040 per 1M. Context window 262,144 tokens.

API id prism-ml/ternary-bonsai-2-9b · OpenRouter · source · updated 2026-11-10 · general-purpose

$0.080
Input / 1M tokens
$0.130
Output / 1M tokens
$0.040
Cached input / 1M
262K
Context window

PrismML: Ternary Bonsai 2 9B specifications

Provider
OpenRouter
API id
prism-ml/ternary-bonsai-2-9b
Model type
general-purpose
Context window
262K tokens
Max output
66K tokens
Currency
USD
Price source
Provider API
Last checked
2026-11-10

Tags

  • vision

What PrismML: Ternary Bonsai 2 9B costs in practice

Estimated cost at common usage volumes
WorkloadInput tokensOutput tokensEstimated cost
Short chat turn1,000500$0.0001
Document summary50,0002,000$0.0043
1M tokens in, 200K out1,000,000200,000$0.11

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does PrismML: Ternary Bonsai 2 9B cost per 1M tokens?
PrismML: Ternary Bonsai 2 9B costs $0.080 per 1M input tokens and $0.130 per 1M output tokens on the standard tier. Cached input is $0.040 per 1M.
What is PrismML: Ternary Bonsai 2 9B's context window?
PrismML: Ternary Bonsai 2 9B accepts up to 262,144 tokens in a single request, and can return up to 65,536 output tokens.
Is there a cheaper OpenRouter model than PrismML: Ternary Bonsai 2 9B?
Yes. Free Models Router is free per 1M input tokens versus $0.080 for PrismML: Ternary Bonsai 2 9B, with a 200,000 token context window.
Where does this PrismML: Ternary Bonsai 2 9B price come from?
From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Other OpenRouter models

See all OpenRouter pricing →