Catalogue / OpenRouter / PrismML: Ternary Bonsai 2 27B (sold by OpenRouter)

PrismML: Ternary Bonsai 2 27B (sold by OpenRouter)

Name: Ternary Bonsai 2 27B pricing and limits on OpenRouter
Creator: Bertrande
License: https://creativecommons.org/licenses/by/4.0/

Prices and limits, each value carrying the date it was observed and the source it came from.

As of 31 October 2026, Ternary Bonsai 2 27B costs $0.075 per million input tokens and $0.500 per million output tokens on OpenRouter. Observed on OpenRouter's own published price list on 31 October 2026. This is OpenRouter's resale price, not the model vendor's list price.

Input $0.075 per 1M

Output $0.500 per 1M

Context 262 144 tokens

What does Ternary Bonsai 2 27B cost?

Parameter	Value	Unit	Observed	Source	Proof
Input price	$0.075	USD per 1M tokens	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`
Output price	$0.500	USD per 1M tokens	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`
Context window	262 144	tokens	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`
Maximum output	32 768	tokens	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`
Input modalities	image text	list	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`
Output modalities	text	list	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`
Cache read price	$0.0375	USD per 1M tokens	3 November 2026 checked 3 November 2026	official API L1	`2247aa6a02e3`
Listed since	2026-09-18	date	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`
Supported parameters	frequency_penalty include_reasoning logprobs max_tokens presence_penalty reasoning reasoning_effort repetition_penalty response_format seed stop structured_outputs temperature tool_choice tools top_k top_logprobs top_p	list	31 October 2026 checked 3 November 2026	official API L1	`c9330591afa3`

How reliable is each host behind Ternary Bonsai 2 27B?

The cheapest offer is not a bargain if it is down. OpenRouter routes traffic to several upstream hosts for this model and publishes the availability its own router recorded over the last day for each of them. Least reliable first.

Host	Availability, last day	Observed
darkbloom/int4	98.75 %	3 November 2026

This is availability as OpenRouter's router observed it, not as you would measure it calling the host directly: the network path is not the same. We read it once a day and keep every reading, so a host that was unreliable last August can still be shown to have been unreliable last August.

We publish no time to first token and no throughput. OpenRouter's API carries fields for both and leaves them empty on every endpoint we have read, and we will not fill a number the source does not give.

How has Ternary Bonsai 2 27B moved?

Output price, 7 observations between 18 September 2026 and 31 October 2026. Range $0.500 to $0.500. Drawn as a step: a value holds until the next observation, we do not interpolate between them.

Has Ternary Bonsai 2 27B changed price?

No change has been recorded since we started observing this service on 18 September 2026. We record a change only when two successive observations differ, so an empty table here means the values have held.

Other services from OpenRouter

All OpenRouter services

Where these figures come from

Source: OpenRouter. Every figure on this page was read from OpenRouter's own published price list, and every row above links straight back to it. We publish factual values with attribution, we do not reproduce OpenRouter's content, and we send readers to them. If you publish this source and want us to stop tracking it, write to contact@bertrande.com and we will act on it without argument.

How is this page verified?

Every figure above comes from OpenRouter's own published price list, which we rank as a level 1 source. We re-check it every 6 hours. Each observation stores the exact source URL and a SHA-256 fingerprint of the source content at that moment, which is what lets us prove what the source said on a given day.

The Proof column shows the first twelve characters of the SHA-256 fingerprint of the source content at the moment we read it. Hover it for the full value. It is what lets us demonstrate later what the source said on a given day, after that page has changed or vanished. The full fingerprints are in data.json.

No value on this page was produced, estimated or completed by a language model. Where we do not have a verified figure, the row is absent rather than filled in. Read the full methodology, or report an error.

Take the data, or watch this page

This page is available as data.json (including the full observation history of every parameter) and data.csv, under CC-BY-4.0, free, with attribution. See all downloads.

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