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Model profile · Prism ML

1-bit Bonsai 4B

CurrentReleased Mar 31, 2026Open WeightNon-Reasoning32K context
1-bit Bonsai 4B is tracked, but not publicly ranked yet. The profile exposes 0 sourced benchmark rows and leaves unsupported fields blank until a published record exists.

Data as of July 29, 2026 · How the score is built

Spec sheet

Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.

API model ID
Not published
Context window
32K
Maximum output
Not sourced yet
Knowledge cutoff
Not sourced yet
Input modalities
Not sourced yet
Output modalities
Not sourced yet
Parameters
Not sourced yet
Availability
Not sourced yet
Cloud regions
Not tracked yet
Lifecycle
Current
API capabilities
Tool calling, structured outputs, and batch support are not tracked yet
Prompt caching
Not documented in the pricing record
Self-host
Open weights available; hardware estimate not sourced
Rate limits
Not tracked yet

Deployment options

Self-host and provider-specific paths stay separate from benchmark evidence so operating constraints are visible before a score becomes the whole decision.

Published weights are available, but BenchLM does not yet have a sourced parameter and VRAM profile for this exact model. Hardware cost estimates stay unavailable until that sizing record is complete.

Estimate VRAM from known parameters

Lineage

The sequence follows explicit supersedes links. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.

Mar 31, 2026 · you are here

1-bit Bonsai 4B

Not publicly ranked · Price not listed

4b

How to read this profile

The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.

We track 1-bit Bonsai 4B, but no sourced benchmark result is published on the site yet. This page shows the metadata we can verify now; score-level coverage will appear when public evaluations land.

1-bit Bonsai 4B is a open weight model with a 32K context window. No explicit reasoning mode is documented in this profile.

Official exact-value snapshot from Prism ML's March 31, 2026 whitepaper and matching Bonsai-4B model card. BenchLM maps only directly comparable fields from the paper: GPQA Diamond, MuSR, IFEval, and MATH-500. MMLU-Redux, GSM8K, HumanEval+, MBPP+, BFCLv3, and IFBench remain out-of-schema or non-equivalent to current core ranking keys.

1-bit Bonsai 4B sits in the 1-bit Bonsai family with 1-bit Bonsai 8B, 1-bit Bonsai 1.7B. The profile has no source-displayable benchmark row yet.

Frequently asked questions

How does 1-bit Bonsai 4B perform overall in AI benchmarks?

1-bit Bonsai 4B does not have any source-displayable benchmark rows yet, so this profile does not assign a public score or rank. Documented specifications remain visible, while score-led charts and claims stay unavailable until a published evaluation can be attached to the exact model.

Is 1-bit Bonsai 4B open source?

1-bit Bonsai 4B is an open-weight model from Prism ML. Its weights can be downloaded for local or hosted deployment, subject to the published license. Open weight does not automatically mean open source: training data and training code may remain private, and commercial restrictions can still apply.

Which sibling models are related to 1-bit Bonsai 4B?

1-bit Bonsai 4B belongs to the 1-bit Bonsai family. Related tracked variants include 1-bit Bonsai 8B, 1-bit Bonsai 1.7B. A sibling link indicates shared lineage or a documented configuration relationship; it does not mean the variants have identical pricing, context limits, benchmark evidence, or deployment behavior. Compare before switching.

Does 1-bit Bonsai 4B have full benchmark coverage on BenchLM?

No. 1-bit Bonsai 4B currently has 0 source-displayable rows across 371 tracked benchmark slots. The profile exposes published, non-generated evidence and leaves missing categories blank until an exact evaluation is available. Coverage describes how much was measured; it is not a penalty added to an individual benchmark result.

What is the context window size of 1-bit Bonsai 4B?

1-bit Bonsai 4B has a reported context window of 32K in the exact-model catalog record. The value stays visible, but the profile marks its source link as unavailable instead of presenting it as directly documented. Maximum output length remains separate because providers often publish a different limit.

Last updated July 29, 2026. Runtime fields remain blank until a sourced snapshot exists.

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