Model reference · open weights
ideogram_4_unconditional_lora is an open-weight image model from ostris, listed in the AxForge catalogue. AxForge can bring it up on EU-owned hardware for you on request — with the licence handled where one is required.
About
Ideogram 4 Unconditional LoRA This is a LoRA that was initialized by extracting the difference of the Ideogram 4 conditional and unconditional model weights. It was further tuned using student teacher training on real data and a loss was performed on a per layer basis to more closely match the unconditional model. This can be used on the conditional Ideogram 4 model during the unconditional pass as a replacement to the full 9B paramiter unconditional model. Using the full unconditional model will likely yield better results, but this will work as a light weight alternative. It was originally trained to be used in Ostris AI Toolkit so samples would be more in line with what the full pipeline would produce without needing to load the entire unconditional model.
Summarised from the published model card. Read the full card on the HuggingFace links below.
Specifications
| Maker | ostris |
|---|---|
| Type | Image models |
| Variants | 1 |
| Runs with | diffusers |
| Based on | ideogram-ai/ideogram-4-fp8 |
| Released | 2026-06-16 |
| Popularity | 2k downloads / month |
| Likes | 49 |
| Licence | Commercial licence needed |
How it works
Variants
Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.
| Variant | Params | Precision | VRAM | Fits 16 GB | Weights |
|---|---|---|---|---|---|
| ideogram_4_unconditional_lora | — | BF16 | — | — | Weights ↗ |
Using it via the API
Once AxForge deploys ideogram-4-unconditional-lora for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (ideogram-4-unconditional-lora below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/images/generations \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"ideogram-4-unconditional-lora","prompt":"a red bicycle","size":"1024x1024"}'
Details
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Licence
The weights are open but its licence needs a commercial agreement for business use. AxForge can arrange that licence and host the model for you — you pay AxForge, we settle with the model’s maker. Ask us for a quote. Read the licence ↗