WeVisOne-VL-4B

Language Tencent Partly verified
  • In Input modalities: TextImage
  • Open weights

Prices

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Details

Licence
apache-2.0
Family
wevisone-vl

Not stated on Tencent’s pages: max input, output modalities, reasoning, reasoning efforts, reasoning can be off, max thinking budget, tool use, structured output, built-in tools, knowledge cutoff, aliases.

Run locally

Weights: tencent/WeVisOne-VL-4B
  • Parameters 4.8B
  • Dense
  • Native precision BF16
  • Layers 36
  • KV cache per token 144 KB
  • Config positions 256K (config.json max_position_embeddings)
My hardware GeForce RTX 4090 24 GB · 1008 GB/s · 64 GB DDR5 dual channel · 89.6 GB/s
On your hardware · GeForce RTX 4090
Runs well BF16 (native) (automatic) 8K context 46–70 tok/sOne GPU
WeightsKV cacheOverheadUsable
Needs
≈ 10.6 GB (weights 9.0 (maker’s file) + KV cache 1.1 + overhead 0.5)
Usable
21.6 GB (90% of its memory)
Generation speed
46–70 tok/s
Longest context
86K (longer doesn’t fit)
First token
about 0.16–0.23 s for a 2K prompt
PrecisionWeightsNeeds at 8KOn your hardwareLongest context
BF16 (native)maker’s file9.0 GB≈ 10.6Runs well 46–70 tok/s86K
Q8_04.8 GB≈ 6.4Runs well 79–119 tok/s116K
FP84.5 GB≈ 6.1Runs well 83–125 tok/s118K
Q6_K3.7 GB≈ 5.3Runs well 97–146 tok/s124K
Q5_K_M3.2 GB≈ 4.8Runs well 109–163 tok/s127K
Q5_03.1 GB≈ 4.7Runs well 111–167 tok/s128K
Q4_K_M2.7 GB≈ 4.4Runs well 122–182 tok/s130K
Q4_02.5 GB≈ 4.2Runs well 128–193 tok/s132K
IQ4_XS2.4 GB≈ 4.0Runs well 134–200 tok/s133K
Q3_K_Mquality drops2.2 GB≈ 3.8Runs well 141–212 tok/s134K
IQ3_XXSquality drops1.7 GB≈ 3.3Runs well 165–247 tok/s137K
Q2_Kquality drops1.7 GB≈ 3.3Runs well 167–250 tok/s138K
IQ2_XXSquality drops1.2 GB≈ 2.8Runs well 206–308 tok/s141K

Click a row to choose a precision. “Maker’s file” sizes are the maker’s own files; others are parameters × bits per weight.

Compared with other hardware

Each at the highest precision it runs. Click one for details.

Smallest that runs it (Q4_K_M, 8K): GPU GeForce RTX 3080; unified memory Apple M5 · 16 GB.

Run commands

vLLM
vllm serve tencent/WeVisOne-VL-4B --max-model-len 8192
Memory to fine-tune
Full≈ 74.2 GBDoesn’t fit your hardware
LoRA≈ 11.4 GBFits your hardware
QLoRA≈ 4.9 GBFits your hardware

Batch 1, 2,048-token sequences, gradient checkpointing; LoRA and QLoRA train rank-16 adapters on the attention projections.

Estimates; facts from the maker’s Hugging Face repositories, as of 2026-11-06. How it’s estimated

Cited scores

From third-party leaderboards, not measured by us

This model isn’t on any leaderboard we cite yet.

  1. New language model

Sources

Some values on this page are still waiting to be checked against official pages: a filled dot is verified, a hollow one is not yet (with or without a source on file). How we verify data

Tencent · China · tencent.com

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