What GPU do I need to run Cloudflare/clef-flash?
9.4B parameters, published in BF16. View on Hugging Face
Set up clef-flashclef-flash is published by Cloudflare on Hugging Face, with 10,638 downloads and 568 likes to date. It's a Qwen3_5ForConditionalGeneration model built for image-text-to-text, published natively in BF16.
VRAM required & cheapest live GPU fit
Required VRAM = weight size at each precision, plus a fixed overhead for KV-cache, activations, and fragmentation. Full formula and assumptions: methodology.
| Precision | Weight size | Required VRAM | Cheapest live fit | GPUs needed | Est. $/hr (full fit) |
|---|---|---|---|---|---|
| BF16 | 17.5 GB | 21.0 GB | RTX A5000 | 1 | $0.176/hr |
| FP8 (quantized) | 8.8 GB | 10.5 GB | RTX 4070 | 1 | $0.121/hr |
| INT4 (quantized) | 4.4 GB | 5.3 GB | RTX 3070 | 1 | $0.088/hr |
A GPU is only matched to a row if its hardware supports that precision, and the primary recommendation is always a single-GPU fit when one exists.
INT4 requires a quantized checkpoint actually published for this model, check its Hugging Face page before relying on this row.
Cheapest way to run clef-flash at its published (BF16) precision: 1× RTX A5000, at $0.176/hr per GPU ($0.176/hr total). Quantizing to FP8 or INT4 (rows above) can cost less, but requires a compatible quantized checkpoint to exist for this model.
clef-flash: common questions
Does clef-flash fit on a 24 GB GPU?
Yes. At BF16 it needs 21.0 GB of VRAM, so a 24 GB card holds it with 3.0 GB to spare. A 16 GB card is not enough for it at BF16.
What is the least VRAM clef-flash can run in?
5.3 GB, at INT4 (quantized), which fits a 6 GB card, against 21.0 GB at BF16. That row assumes an INT4 checkpoint has actually been published for this model, so check its Hugging Face page before planning around it.
Does quantizing clef-flash lower the GPU bill?
Yes. At BF16 the cheapest live fit is one RTX A5000 at $0.176/hr. At INT4 (quantized) it drops to one RTX 3070 at $0.088/hr, provided a quantized checkpoint exists for it.
Weight-to-VRAM math, the fit rules, and how live prices are normalized: full methodology.
More Cloudflare models
- clef (27.4B, BF16)
- bert-base-uncased (110M, F32)
- Qwen3-0.6B (752M, BF16)
- gpt2 (137M, F32)
- Qwen3-8B (8.2B, BF16)
- Qwen3.6-35B-A3B-FP8 (36.0B, F8_E4M3)
Related reading: RTX A5000 pricing and specs, The NVIDIA Inception program, explained, Google Colab alternatives for dedicated GPU access, Free GPU credits for students and researchers, and RunPod volume disk vs. network volume, compared.
