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Open-weight model · Text generation

bloomz-560m

by BigScience Workshop bigscience/bloomz-560m

bloomz-560m is an open-weight model for text generation from BigScience Workshop, released under bigscience-bloom-rail-1.0. It has 559M parameters. At 16-bit it needs about 1.3 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index. It draws 1.1M downloads a month.

We recommend using the model to perform tasks expressed in natural language. For example, given the prompt "Translate to English: Je t’aime.", the model will most likely answer "I love you.".

Parameters559M
Context—
Weights2.2 GB
Licensebigscience-bloom-rail-1.0
AccessOpen weights
Monthly Downloads1.1M

Runs On

What it takes to serve bloomz-560m (559M parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 1.1 GB 1.3 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.6 GB 0.7 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.3 GB 0.3 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Oct 7, 2026.

bloomz-560m on every accelerator the SAVRN Index prices, at every precision

Model Card

By BigScience Workshop, published under bigscience-bloom-rail-1.0, revision a2845d7e13dd.

Table of Contents

  1. Model Summary
  2. Use
  3. Limitations
  4. Training
  5. Evaluation
  6. Citation

Model Summary

We present BLOOMZ & mT0, a family of models capable of following human instructions in dozens of languages zero-shot. We finetune BLOOM & mT5 pretrained multilingual language models on our crosslingual task mixture (xP3) and find the resulting models capable of crosslingual generalization to unseen tasks & languages.

Read the full model card (725 words)

Configuration

Architecture
BloomForCausalLM
Attention heads
16
Vocabulary size
250,880
Model type
bloom

Identity and Version

Repository
bigscience/bloomz-560m
Publisher
BigScience Workshop
Task
Text generation
Modality
Text
Library
transformers
Parameters
559M parameters
Languages
ak, ar, as, bm, bn, ca, en, es
Revision
a2845d7e13dd12efae154a9f1c63fcc2e0cc4b05
First published
2022-10-08
Last updated
2023-05-27

Files and Weights

14 files, 2.3 GB in total. The weights are 2 files totalling 2.2 GB in bin, safetensors.

Weights2 files · 2.2 GB
Configuration2 files · 800 B
Tokenizer2 files · 14.5 MB
Documentation1 file · 24.6 KB
Other6 files · 24.2 MB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights1.1 GB 365b2c5e9bd1
pytorch_model.binWeights1.1 GB 5c50d925a996
config.jsonConfiguration715 B —
special_tokens_map.jsonConfiguration85 B —
README.mdDocumentation24.6 KB —
logs/logs/xp3capmixnewcodelonglossseq/main_log.txtOther7.1 MB —
logs/tensorboard/xp3capmixnewcodelonglossseq/events.out.tfevents.1665051802.jean-zay-iam25.73114.0Other40 B d246bc97c576
logs/tensorboard/xp3capmixnewcodelonglossseq/events.out.tfevents.1665052484.jean-zay-iam17.3156474.0Other40 B 56284116193f
logs/tensorboard/xp3capmixnewcodelonglossseq/events.out.tfevents.1665052656.jean-zay-iam17.3157134.0Other40 B 297416e34370
logs/tensorboard/xp3capmixnewcodelonglossseq/events.out.tfevents.1665052772.jean-zay-iam17.3157698.0Other71.1 KB 094d514a3322
logs/tensorboard/xp3capmixnewcodelonglossseq/events.out.tfevents.1665052983.jean-zay-iam17.3161807.0Other17.0 MB ea36c54615f6
.gitattributesRepository1.5 KB —
tokenizer.jsonTokenizer14.5 MB 3fa39cd4b150
tokenizer_config.jsonTokenizer222 B —

License and Download

License
bigscience-bloom-rail-1.0
Access
Open weights, no gate
Download size
2.2 GB
Download from BigScience Workshop

Released by BigScience Workshop through its official repository on Hugging Face.

Built From

  • Described by arXiv:2211.01786
  • Trained on (disclosed) bigscience/xP3

Evaluations

Each result is shown as reported, with the conditions its reporter stated. None is a SAVRN measurement. A comparison lines two results up only when their configuration, unit and setup are all stated and identical.

BenchmarkConditionsResultReported byRevisionDate
ANLI (r1) Configuration r1Task Natural language inferenceMetric AccuracyComparison conditions not established 33.4 bigscience
Publisher reported
Evaluated revision not stated —
ANLI (r2) Configuration r2Task Natural language inferenceMetric AccuracyComparison conditions not established 33.4 bigscience
Publisher reported
Evaluated revision not stated —
ANLI (r3) Configuration r3Task Natural language inferenceMetric AccuracyComparison conditions not established 33.5 bigscience
Publisher reported
Evaluated revision not stated —
HumanEval Configuration NoneTask Program synthesisMetric Pass@1Comparison conditions not established 2.18 bigscience
Publisher reported
Evaluated revision not stated —
HumanEval Configuration NoneTask Program synthesisMetric Pass@10Comparison conditions not established 4.11 bigscience
Publisher reported
Evaluated revision not stated —
HumanEval Configuration NoneTask Program synthesisMetric Pass@100Comparison conditions not established 9 bigscience
Publisher reported
Evaluated revision not stated —
StoryCloze (2016) Configuration 2016Task Sentence completionMetric AccuracyComparison conditions not established 60.29 bigscience
Publisher reported
Evaluated revision not stated —
SuperGLUE (cb) Configuration cbTask Natural language inferenceMetric AccuracyComparison conditions not established 53.57 bigscience
Publisher reported
Evaluated revision not stated —
SuperGLUE (copa) Configuration copaTask Sentence completionMetric AccuracyComparison conditions not established 52 bigscience
Publisher reported
Evaluated revision not stated —
SuperGLUE (rte) Configuration rteTask Natural language inferenceMetric AccuracyComparison conditions not established 67.15 bigscience
Publisher reported
Evaluated revision not stated —
Winogrande XL (xl) Configuration xlTask Coreference resolutionMetric AccuracyComparison conditions not established 52.41 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (et) Configuration etTask Sentence completionMetric AccuracyComparison conditions not established 53 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (ht) Configuration htTask Sentence completionMetric AccuracyComparison conditions not established 49 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (id) Configuration idTask Sentence completionMetric AccuracyComparison conditions not established 57 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (it) Configuration itTask Sentence completionMetric AccuracyComparison conditions not established 52 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (qu) Configuration quTask Sentence completionMetric AccuracyComparison conditions not established 55 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (sw) Configuration swTask Sentence completionMetric AccuracyComparison conditions not established 56 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (ta) Configuration taTask Sentence completionMetric AccuracyComparison conditions not established 58 bigscience
Publisher reported
Evaluated revision not stated —
XCOPA (th) Configuration thTask Sentence completionMetric AccuracyComparison conditions not established 58 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (ar) Configuration arTask Natural language inferenceMetric AccuracyComparison conditions not established 44.46 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (bg) Configuration bgTask Natural language inferenceMetric AccuracyComparison conditions not established 39.76 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (de) Configuration deTask Natural language inferenceMetric AccuracyComparison conditions not established 39.36 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (el) Configuration elTask Natural language inferenceMetric AccuracyComparison conditions not established 40.96 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (en) Configuration enTask Natural language inferenceMetric AccuracyComparison conditions not established 46.43 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (es) Configuration esTask Natural language inferenceMetric AccuracyComparison conditions not established 44.98 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (fr) Configuration frTask Natural language inferenceMetric AccuracyComparison conditions not established 45.54 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (hi) Configuration hiTask Natural language inferenceMetric AccuracyComparison conditions not established 41.81 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (ru) Configuration ruTask Natural language inferenceMetric AccuracyComparison conditions not established 39.64 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (sw) Configuration swTask Natural language inferenceMetric AccuracyComparison conditions not established 38.35 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (th) Configuration thTask Natural language inferenceMetric AccuracyComparison conditions not established 35.5 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (tr) Configuration trTask Natural language inferenceMetric AccuracyComparison conditions not established 37.31 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (ur) Configuration urTask Natural language inferenceMetric AccuracyComparison conditions not established 38.96 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (vi) Configuration viTask Natural language inferenceMetric AccuracyComparison conditions not established 44.74 bigscience
Publisher reported
Evaluated revision not stated —
XNLI (zh) Configuration zhTask Natural language inferenceMetric AccuracyComparison conditions not established 44.66 bigscience
Publisher reported
Evaluated revision not stated —
XWinograd (en) Configuration enTask Coreference resolutionMetric AccuracyComparison conditions not established 51.01 bigscience
Publisher reported
Evaluated revision not stated —
XWinograd (fr) Configuration frTask Coreference resolutionMetric AccuracyComparison conditions not established 51.81 bigscience
Publisher reported
Evaluated revision not stated —
XWinograd (jp) Configuration jpTask Coreference resolutionMetric AccuracyComparison conditions not established 52.03 bigscience
Publisher reported
Evaluated revision not stated —
XWinograd (pt) Configuration ptTask Coreference resolutionMetric AccuracyComparison conditions not established 53.99 bigscience
Publisher reported
Evaluated revision not stated —
XWinograd (ru) Configuration ruTask Coreference resolutionMetric AccuracyComparison conditions not established 53.97 bigscience
Publisher reported
Evaluated revision not stated —
XWinograd (zh) Configuration zhTask Coreference resolutionMetric AccuracyComparison conditions not established 54.76 bigscience
Publisher reported
Evaluated revision not stated —

Memory Requirements

PrecisionWeights in memory
As published2.2 GB
16-bit1.1 GB
8-bit0.6 GB
4-bit0.3 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Questions About bloomz-560m

How much GPU memory does bloomz-560m need?

About 1.3 GB at 16-bit and 0.3 GB at 4-bit: the weights (559M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run bloomz-560m on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

What license is bloomz-560m released under?

bigscience-bloom-rail-1.0, as its publisher declares it. Read the license text before commercial use.

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