- Who it helps
- Researchers studying efficient image-model training and developers assessing experimental image generation.
- Availability
- November 4 release includes code and Apache2.0 weights. It is a research checkpoint on the path toward a video model.
What the budget covers
The reported total is $21,038 for 8,415 H100-hours priced at $2.50 per hour, including pretraining and post-training. It is a compute accounting figure, not a full development budget or a price for reproducing the entire project.
Linum releases an experimental image model with a training-cost breakdown ↗
Important limits in the release
The model has a roughly 2B image generator and a separate 4B text encoder. It cannot reliably write text or make posters, and the authors show failures with bodies, crowds and multiple people. Its optional prompt expansion uses a paid external model; the model card documents a switch to disable it.
Linum releases an experimental image model with a training-cost breakdown ↗P-JiT 21K model card ↗
What you can do
- Inspect the failure examples and model requirements before treating it as a production design tool. Open reference ↗
Where the evidence stops
Original report and model card read November 4. No weights downloaded, images generated or compute estimate independently audited. This image release does not establish a finished video-generation system.
Sources read. Primary sources checked November 4, 2026. No third-party software, model inference or complete workflow executed.
Sources & further reading
Web · paper
Linum releases an experimental image model with a training-cost breakdown ↗
Identifies the subject, documented capability or specific verification limit.
Sahil Chopra and Manu Chopra / Linum · page checked 2026-11-04
Hugging Face · official
P-JiT 21K model card ↗
Identifies the subject, documented capability or specific verification limit.
Linum · page checked 2026-11-04
Coverage note: Independent attention and end-to-end execution remain unverified.
The record over time (1)
Dated source checks and published explanations. An observation date can differ from the original release date.
- · Added to Current
Linum published a downloadable image-model checkpoint alongside a breakdown of roughly $21,000 in training compute.