Qwen3-Omni-30B-A3B-Captioner

Language Alibaba Qwen Partly verified Released Sep 17, 2025
  • Open weights

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Details

Family
qwen-omni-captioner

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

  • Parameters 31.7B
  • Active 4.5B (estimated) · 128 experts, 8 per token
  • Native precision BF16
  • Layers 48
  • KV cache per token 96 KB
  • Config positions 64K (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 Q4_0 (automatic) 8K context 150–225 tok/sOne GPU
WeightsKV cacheOverheadUsable
Needs
≈ 18.2 GB (weights 16.6 + KV cache 0.8 + overhead 0.8)
Usable
21.6 GB (90% of its memory)
Generation speed
150–225 tok/s (reads the active 4.5B per token)
Longest context
44K (longer doesn’t fit)
First token
about 0.15–0.22 s for a 2K prompt
PrecisionWeightsNeeds at 8KOn your hardwareLongest context
BF16 (native)maker’s file59.1 GB≈ 62.8Needs system memory 11–16 tok/s—
Q8_031.4 GB≈ 33.7Needs system memory 21–31 tok/s—
FP829.5 GB≈ 31.8Needs system memory 24–36 tok/s—
Q6_K24.3 GB≈ 26.2Needs system memory 43–65 tok/s—
Q5_K_M21.0 GB≈ 22.8Needs system memory 95–143 tok/s—
Q5_020.3 GB≈ 22.1Needs system memory 113–170 tok/s—
Q4_K_M17.9 GB≈ 19.6Runs well 141–212 tok/s29K
Q4_016.6 GB≈ 18.2Runs well 150–225 tok/s44K
IQ4_XS15.7 GB≈ 17.2Runs well 157–235 tok/s54K
Q3_K_Mquality drops14.4 GB≈ 15.9Runs well 167–250 tok/s64K
IQ3_XXSquality drops11.3 GB≈ 12.6Runs well 198–297 tok/s64K
Q2_Kquality drops11.1 GB≈ 12.4Runs well 201–301 tok/s64K
IQ2_XXSquality drops7.6 GB≈ 8.9Runs well 255–383 tok/s64K

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 4090; unified memory Apple M6 (24GB or 32GB) · 32 GB.

Run commands

The maker publishes no files at this precision. Choose its native precision or one of its own builds, or quantise it yourself with llama.cpp.

Memory to fine-tune
Full≈ 474.8 GBDoesn’t fit your hardware
LoRA≈ 61.4 GBDoesn’t fit your hardware
QLoRA≈ 19.0 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

Alibaba Qwen’s official policies: data use, privacy, terms →

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

Alibaba Qwen · China · qwen.ai

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