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Can the NVIDIA RTX A400 run zerank-1 small?

80Great quality (A) · 80 of 100: how capable the model is at Q8_0, whatever it runs on. Match score 82/100 (quality, fit, speed and memory use) sets the ranking.

Yes, but slowly

Slow. At Q8_0 it needs about 2.9 GB of 4.0 GB usable and makes one decision in about 486 ms.

Best quant
Q8_0
Time per decision
486 ms
Decisions per second
2.1/s
Input assumed
512 tokens
Returns
Probability or score

Best app to run it on the NVIDIA RTX A400

On Windows

Sentence Transformers

Python library · runs on PyTorch (Transformers)

  • A few lines of Python with Transformers or Sentence Transformers; easiest for scripts and notebooks.
python -c "from sentence_transformers import CrossEncoder; print(CrossEncoder('zeroentropy/zerank-1-small-reranker').predict([('query', 'document')]))"
  • vLLM Serves the scoring head directly (rerank, classify or reward) with batching.

On Linux

vLLM

Inference server · runs on vLLM

  • Serves the scoring head directly (rerank, classify or reward) with batching.
vllm serve zeroentropy/zerank-1-small-reranker
  • Sentence Transformers A few lines of Python with Transformers or Sentence Transformers; easiest for scripts and notebooks.

How we choose: the files published for this model, your operating system and GPU, whether it fits fully in memory, and published speed tests (MLX vs llama.cpp on Apple silicon, vLLM vs llama.cpp vs Ollama on NVIDIA). Details.

Download zerank-1 small

Original weights · Hugging Face

Full-precision files from ZeroEntropy, for Transformers, Sentence Transformers, Text Embeddings Inference, Infinity or vLLM.

huggingface.co/zeroentropy/zerank-1-small-reranker (opens in a new tab)

No sign-in needed.

Links checked 7 days ago against Hugging Face, Ollama and GitHub.

How it’s rated

Quality 80Great quality (A) · 80 of 100: how capable the model is at Q8_0, whatever it runs on. Match score 82/100 (quality, fit, speed and memory use) sets the ranking.
How capable the model itself is at Q8_0, from its editorial quality tier scaled by the quantization or precision. It’s the same on any hardware that runs this variant. Scale: A+ 85+ · A 70+ · B 55+ · C 40+ · D under 40.
Runs Slow
How well it runs on the NVIDIA RTX A400: speed, capped by how well it fits in memory. Runs great: 30+ tokens/s (or near the image, video or decision speed target) · Runs well: 10+ tokens/s · Slow: 3+ tokens/s · Very slow: under 3 · Won’t run: doesn’t fit even with offload. A tight fit or RAM offload caps it at Runs well; heavy offload caps it at Slow.

Match score

To order lists, each result also gets a match score out of 100 from four parts. It favors the most capable model that still runs well.

PrecisionEditorial precision tier from the model’s published benchmarks, scaled by the quantization or precision used.36.0 / 45
Memory fitFull marks when everything sits in GPU memory; fewer when part spills to system RAM.25.0 / 25
SpeedTime for one decision against a 100 ms target: reading the input plus any tokens the model writes.6.8 / 15
ClarityHow easy the answer is to use in code: a probability or score earns the most, written feedback before a score the least.15.0 / 15
Match score82.8 / 100

The match score orders results; it is not shown as a grade. Quality and Runs are the two ratings in the tables.

Every quantization on the NVIDIA RTX A400

Quant Memory needed Available Speed Runs Quality Download
Q4_K_M 2.1 GB 4.0 GB 472 ms Slow 76Great quality (A) · 76 of 100: how capable the model is at Q4_K_M, whatever it runs on. Match score 81/100 (quality, fit, speed and memory use) sets the ranking. All files (opens in a new tab)
Q5_K_M 2.3 GB 4.0 GB 475 ms Slow 77Great quality (A) · 77 of 100: how capable the model is at Q5_K_M, whatever it runs on. Match score 81/100 (quality, fit, speed and memory use) sets the ranking. All files (opens in a new tab)
Q6_K 2.4 GB 4.0 GB 478 ms Slow 79Great quality (A) · 79 of 100: how capable the model is at Q6_K, whatever it runs on. Match score 82/100 (quality, fit, speed and memory use) sets the ranking. All files (opens in a new tab)
Q8_0 2.9 GB 4.0 GB 486 ms Slow 80Great quality (A) · 80 of 100: how capable the model is at Q8_0, whatever it runs on. Match score 82/100 (quality, fit, speed and memory use) sets the ranking. All files (opens in a new tab)
F16 4.5 GB 4.0 GB 571 ms Slowoffloads to RAM 80Great quality (A) · 80 of 100: how capable the model is at F16, whatever it runs on. Match score 67/100 (quality, fit, speed and memory use) sets the ranking. Original weights (opens in a new tab)

Times are for one request with a 512-token input and about 1 tokens written. Batching servers process many requests at once.

Other hardware that runs it

Quick answers

How much memory does zerank-1 small need on the NVIDIA RTX A400 4GB?

At Q8_0 it needs about 2.9 GB. The NVIDIA RTX A400 4GB has 4.0 GB usable.

How fast is zerank-1 small on the NVIDIA RTX A400 4GB?

It makes one decision in about 486 ms at Q8_0, an estimate from the hardware and the size of the model.

Estimates come from published hardware specs and our open formulas, not from running the model on your machine. Real speed varies with runtime, drivers and settings. Numbers marked “Measured” come from a linked benchmark.

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