Lodestones · Image generation · 8.9B parameters · apache-2.0
Chroma1 HD
Needs 11 GB at FP8 / INT8. The smallest real configuration today is 1× RTX 3060 at Vast.ai, $0.04 per hour, about $26 a month at 730 hours.
Parameters8.9Bdense
CategoryImage generationsized on weights + headroom
Checkpoint45 GBBF16, as published
Licenseapache-2.0check before commercial use
Released—documented date
Smallest configuration · FP8 / INT8
1× RTX 306012 GB VRAM · 89% used
- Per hour
- $0.04
- Per month
- $26
- Cheapest at
Vast.ai
Memory · 3 precisionsHow much VRAM it needs
Weights plus 20% runtime overhead. For image generation models, activations also depend on resolution, clip length and batch size; the per-GPU estimates below give the practical configuration.
| Precision | Weights | Weights + headroom |
|---|---|---|
| BF16published checkpoint | 45 GB | 55 GB |
| FP8 / INT8estimated | 9 GB | 11 GB |
| INT4 / MXFP4estimated | 5 GB | 7 GB |
Cross-checked on Hugging Face Oct 28, 2026: 8.90B parameters in the safetensors headers, 45.3 GB of weight files. Method: weights as published at the native precision, verified on Hugging Face 2026-10-28; other precisions estimated at 1 (8-bit) and 0.6 (4-bit) bytes per parameter; × 1.2 runtime headroom; KV cache not added (architecture not readable).
Smallest configuration per GPU · 109 GPUs · cheapest eligible on-demand offer per GPU count, every provider on fileWhat it costs to run, GPU by GPU
The fewest GPUs of one type whose total memory fits the model at short context, priced from the cheapest eligible on-demand offer for exactly that count (45-day window, newest reading per provider), with the next providers beside it. Monthly = 730 hours.
| GPU | Smallest config | VRAM used | $ / hour | $ / month | Cheapest at |
|---|---|---|---|---|---|
| RTX 3060Best fit | 1× 12 GB12 GB total | 89% | $0.04 | $26 | Vast.aiTrust 78 · read Nov 2 · receipt · also Clore.ai $0.05, gcube $0.05 |
| RTX A2000 | 1× 12 GB12 GB total | 89% | $0.04 | $26 | Vast.aiTrust 78 · read Nov 2 · receipt · also gcube $0.09, Runpod $0.12 |
| T4 | 1× 16 GB16 GB total | 67% | $0.04 | $29 | Vast.aiTrust 78 · read Nov 2 · receipt · also iwinv $0.20, Theta EdgeCloud $0.20 |
| Tesla P40 | 1× 24 GB24 GB total | 45% | $0.04 | $30 |  Clore.aiTrust 49 · read Nov 2 · receipt · also gcube $0.07, Vast.ai $0.11 |
| GTX Titan X | 1× 12 GB12 GB total | 89% | $0.04 | $31 | Vast.aiTrust 78 · read Nov 2 · receipt |
| Titan Xp | 1× 12 GB12 GB total | 89% | $0.04 | $31 | Vast.aiTrust 78 · read Nov 2 · receipt |
| Tesla P100 | 1× 16 GB16 GB total | 67% | $0.04 | $33 | Vast.aiTrust 78 · read Nov 2 · receipt · also gcube $0.07 |
| Tesla V100 16GB | 1× 16 GB16 GB total | 67% | $0.06 | $46 | Clore.aiTrust 49 · read Nov 2 · receipt · also Vast.ai $0.08, CloudRift $0.28 |
| GTX 1080 Ti | 1× 11 GB11 GB total | 97% tight | $0.06 | $47 | Vast.aiTrust 78 · read Nov 2 · receipt · also Edgevana $0.08 |
| RTX 2080 Ti | 1× 11 GB11 GB total | 97% tight | $0.07 | $49 | |
| Tesla V100 32GB | 1× 32 GB32 GB total | 33% | $0.07 | $50 | Vast.aiTrust 78 · read Nov 2 · receipt · also Cyfuture AI $0.57, E2E Networks $1.50 |
| RTX PRO 2000 | 1× 16 GB16 GB total | 67% | $0.07 | $51 | Clore.aiTrust 49 · read Nov 2 · receipt · also gcube $0.16 |
| RTX A4000 | 1× 16 GB16 GB total | 67% | $0.07 | $53 | Vast.aiTrust 78 · read Nov 2 · receipt · also Edgevana $0.10, gcube $0.10 |
| Tesla M40 | 1× 24 GB24 GB total | 45% | $0.07 | $54 | Clore.aiTrust 49 · read Nov 2 · receipt · also gcube $0.07 |
| RTX 3060 Ti | 2× 8 GB16 GB total | 67% | $0.08 | $61 | Vast.aiTrust 78 · read Nov 2 · receipt · also Clore.ai $0.12, AtmosCompute $0.34 |
| RTX 5060 Ti | 1× 16 GB16 GB total | 67% | $0.08 | $61 | Clore.aiTrust 49 · read Nov 2 · receipt · also Vast.ai $0.09, Theta EdgeCloud $0.12 |
| RTX 4070 | 1× 12 GB12 GB total | 89% | $0.08 | $61 | Clore.aiTrust 49 · read Nov 2 · receipt · also Vast.ai $0.11, gcube $0.14 |
| GTX 1660 | 2× 6 GB12 GB total | 89% | $0.09 | $64 | Vast.aiTrust 78 · read Nov 2 · receipt |
| RTX 3090 | 1× 24 GB24 GB total | 45% | $0.09 | $66 | |
| RTX 4070 Super | 1× 12 GB12 GB total | 89% | $0.10 | $70 | Vast.aiTrust 78 · read Nov 2 · receipt · also Clore.ai $0.13, gcube $0.15 |
| GTX 1070 | 2× 8 GB16 GB total | 67% | $0.10 | $70 | Vast.aiTrust 78 · read Nov 2 · receipt |
| GTX 1080 | 2× 8 GB16 GB total | 67% | $0.10 | $76 | Vast.aiTrust 78 · read Nov 2 · receipt |
| RTX 3080 Ti | 1× 12 GB12 GB total | 89% | $0.10 | $76 | Clore.aiTrust 49 · read Nov 2 · receipt · also gcube $0.10, Vast.ai $0.11 |
| L4 | 1× 24 GB24 GB total | 45% | $0.10 | $76 | Vast.aiTrust 78 · read Nov 2 · receipt · also Hikube $0.27, Infomaniak $0.28 |
| The 24 cheapest of 99 GPU types that fit. Every GPU, any precision and context, in the finder | |||||
Throughput estimates · Oct 4, 2026Estimated speed, in s per image
Image generation. Speed estimated from memory bandwidth and model size, never measured. The cost per 1,000 images is an estimate at the prices read on Oct 4, 2026; it is not recomputed here.
| GPU | Cards | Precision | s per image | per 1,000 images · estimate |
|---|---|---|---|---|
| RTX 4090 | 1 | FP8 | 7.1 | $0.450 |
| RTX 5090 | 1 | FP8 | 4.2 | $0.560 |
| L40S | 1 | FP8 | 5.8 | $0.890 |
| RTX PRO 6000 | 1 | FP8 | 3.0 | $0.960 |
| H100 SXM | 1 | FP8 | 2.4 | $1.23 |
| H100 PCIe | 1 | FP8 | 3.3 | $1.23 |
| B200 | 1 | FP8 | 1.2 | $1.38 |
| A100 80GB | 1 | BF16 | 5.6 | $1.48 |
| H200 | 1 | FP8 | 2.2 | $1.55 |
| MI300X | 1 | FP8 | 3.4 | $1.58 |
cards, precision and speed estimated from memory bandwidth and model size; cost recomputed by the site from verified prices · cheapest per output at the prices of Oct 4, 2026: RTX 4090Why estimates, and their limits →
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