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Ternary Bonsai 2 27B

● live
PrismMLopen weights

On the board as live since 2026-09-18 — the watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.

Launch detailsLive — our sweep read prism-ml/ternary-bonsai-2-27b at $0.07/$0.50 per 1M, 262k ctx, on Sep 18; a 1.58-bit ternary compression of Qwen3.8 27B rather than a model trained from scratch; that it is PrismML's, Apache 2.0, 5.9 GB and holds ~98% of the original is search-grade, not our own reading.

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Timeline

2026-09-18
Ternary Bonsai 2 27B verified live — from the vendor's own announcement and catalog listingverified

Where to use Ternary Bonsai 2 27B

3 providers list Ternary Bonsai 2 27B in the models.dev catalog (as of 2026-11-03), under the model ids shown below.

OpenRouterprism-ml/ternary-bonsai-2-27b · prism-ml/ternary-bonsai-2-9b
Kilo Gatewayprism-ml/ternary-bonsai-2-27b · prism-ml/ternary-bonsai-2-9b
NanoGPTprism-ml/ternary-bonsai-2-27b · prism-ml/ternary-bonsai-2-9b

Listings cover the model family, so a provider may list a sibling tier under the same name. Check the id before you build on it.

Ternary Bonsai 2 27B: quick answers

Is Ternary Bonsai 2 27B out?

Yes. Ternary Bonsai 2 27B is live and has been since September 18, 2026.

When was Ternary Bonsai 2 27B released?

September 18, 2026.

Who makes Ternary Bonsai 2 27B?

PrismML.

Where can I use Ternary Bonsai 2 27B?

3 providers list it in the models.dev catalog, including OpenRouter, Kilo Gateway and NanoGPT. The exact model ids each one lists are on this page.

Is Ternary Bonsai 2 27B open weights?

Yes. Ternary Bonsai 2 27B is released with open weights.

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