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PIGEONS

by PIGEONS PIGEONS-Captioner/PIGEONS

PIGEONS is an open-weight model from PIGEONS, released under Apache License 2.0. It has 35.3B parameters. At 16-bit it needs about 84.6 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index.

Detailed video captioning has become an essential semantic interface for multi-modal understanding and generation.

Parameters35.3B
Context—
Weights70.5 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads—

Runs On

What it takes to serve PIGEONS (35.3B 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 70.5 GB 84.6 GB 1x MI300X (192 GB)
Vultr
$1.85 1x MI325X $2.00 · 1x MI355X $2.59
8-bit 35.3 GB 42.3 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 17.6 GB 21.2 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 18, 2026.

PIGEONS on every accelerator the SAVRN Index prices, at every precision

Model Card

By PIGEONS, published under apache-2.0, revision 54259242fdf6.

Detailed video captioning has become an essential semantic interface for multi-modal understanding and generation. While existing methods mainly target short videos, extending them to long videos remains challenging, primarily due to limited context windows of current video understanding models. A naive solution is to adopt segment-wise captioning followed by concatenation, yet this paradigm often suffers from inconsistent subject references and fragmented long-range narratives. To mitigate these issues, we introduce PIGEONS, an incremental long-video captioning model built upon a Persistent Identity Gallery and an Evolving Overarching Narrative Summary. As illustrated in the figure below…

Read PIGEONS's full model card

PIGEONS: Incremental Long-Video Captioning with Persistent Identity Gallery and Evolving Overarching Narrative Summary


Overview

Detailed video captioning has become an essential semantic interface for multi-modal understanding and generation. While existing methods mainly target short videos, extending them to long videos remains challenging, primarily due to limited context windows of current video understanding models. A naive solution is to adopt segment-wise captioning followed by concatenation, yet this paradigm often suffers from inconsistent subject references and fragmented long-range narratives. To mitigate these issues, we introduce PIGEONS, an incremental long-video captioning model built upon a Persistent Identity Gallery and an Evolving Overarching Narrative Summary.

As illustrated in the figure below, before caption generation, PIGEONS scans the entire video to construct an identity gallery that captures key subjects along with their visual references, thereby providing a stable referential anchor. The model then performs clip-by-clip captioning conditioned on the persistent gallery and an evolving overarching narrative summary, which compactly maintains and updates essential long-range contextual information after each captioning step.

To enable these capabilities, we develop a three-stage training strategy that integrates supervised fine-tuning and reinforcement learning. Extensive experiments demonstrate that PIGEONS markedly improves long-video captioning performance, achieving superior accuracy, completeness, and subject referential consistency over existing methods, while maintaining competitive performance on short-video captioning.

Getting Started

Please refer to our Github repository for more details.

Citation

If you find our work helpful for your research, please consider giving a star and citing our paper. We appreciate your support!

TODO

Configuration

Architecture
Qwen3OmniMoeForConditionalGeneration
Hidden size
1,024
Model type
qwen3_omni_moe

Identity and Version

Repository
PIGEONS-Captioner/PIGEONS
Publisher
PIGEONS
Task
Not stated by the source
Modality
Other
Library
Not stated by the source
Parameters
35.3B parameters
Languages
Not stated by the source
Revision
54259242fdf6c5311ceb3785305b5f297f4fb315
First published
2026-10-12
Last updated
2026-10-12

Files and Weights

25 files, 70.5 GB in total. The weights are 15 files totalling 70.5 GB in safetensors.

Weights15 files · 70.5 GB
Configuration4 files · 2.7 MB
Tokenizer2 files · 11.4 MB
Documentation1 file · 2.6 KB
Other2 files · 2.1 MB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
model-00001-of-00015.safetensorsWeights5.0 GB 3519593b91c4
model-00002-of-00015.safetensorsWeights5.0 GB 11e82a4d5ffa
model-00003-of-00015.safetensorsWeights5.0 GB 9ccc35f47d6f
model-00004-of-00015.safetensorsWeights5.0 GB e15551a571dc
model-00005-of-00015.safetensorsWeights5.0 GB a35216876f90
model-00006-of-00015.safetensorsWeights5.0 GB 4611851ee89b
model-00007-of-00015.safetensorsWeights5.0 GB 0e71bb0b5461
model-00008-of-00015.safetensorsWeights5.0 GB d4b70bb1cc3f
model-00009-of-00015.safetensorsWeights5.0 GB ef0380834069
model-00010-of-00015.safetensorsWeights5.0 GB 09f0169e33b9
model-00011-of-00015.safetensorsWeights5.0 GB 408ca37fdce2
model-00012-of-00015.safetensorsWeights5.0 GB 473db17f330f
model-00013-of-00015.safetensorsWeights5.0 GB 8023db045338
model-00014-of-00015.safetensorsWeights5.0 GB 184d98215edb
model-00015-of-00015.safetensorsWeights622.9 MB c479f4a67a37
config.jsonConfiguration11.6 KB —
model.safetensors.index.jsonConfiguration2.7 MB —
preprocessor_config.jsonConfiguration603 B —
processor_config.jsonConfiguration2.4 KB —
README.mdDocumentation2.6 KB —
assets/main.pngOther2.1 MB 79c84f94e535
chat_template.jinjaOther6.5 KB —
.gitattributesRepository1.6 KB —
tokenizer.jsonTokenizer11.4 MB a7d41145c408
tokenizer_config.jsonTokenizer1.0 KB —

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
70.5 GB
Download from PIGEONS

Released by PIGEONS through its official repository on Hugging Face. Read the license.

Built From

Memory Requirements

PrecisionWeights in memory
As published70.5 GB
16-bit70.5 GB
8-bit35.3 GB
4-bit17.6 GB

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

Questions About PIGEONS

How much GPU memory does PIGEONS need?

About 84.6 GB at 16-bit and 21.2 GB at 4-bit: the weights (35.3B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run PIGEONS 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.

Can I use PIGEONS commercially?

Yes. PIGEONS is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.