Is Qwen3-Embedding-0.6B or embeddinggemma-300m-qat-q8_0-unquantized smaller?

Both publish quantizations; compare the table for the exact sizes.

Which uses less memory at long context?

embeddinggemma-300m-qat-q8_0-unquantized — its KV cache at 32K context is 24.2x smaller, because of how its attention layers cache.

Model comparison

Qwen3-Embedding-0.6B vs embeddinggemma-300m-qat-q8_0-unquantized

These two publish different quantization sets; the table below has the exact sizes. At long context the gap widens: embeddinggemma-300m-qat-q8_0-unquantized's KV cache at 32K is 24.2× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	Qwen3-Embedding-0.6B	embeddinggemma-300m-qat-q8_0-unquantized
Parameters	596M	303M
Architecture	qwen3	gemma-embedding
Layers	28	24
Native context	32,768	2,048
Mixture of experts	no	no
Quantizations published	22	1
Smallest quantization	0.28 GiB	0.31 GiB
Q4_K_M	0.37 GiB	—
Licence	apache-2.0	gemma

KV cache by context

the term that decides long-context viability

Context	Qwen3-Embedding-0.6B	embeddinggemma-300m-qat-q8_0-unquantized	Ratio
4,096	0.44 GiB	0.04 GiB	12.44×
8,192	0.88 GiB	0.05 GiB	17.23×
16,384	1.75 GiB	0.08 GiB	21.33×
32,768	3.50 GiB	0.14 GiB	24.22×
65,536	7.00 GiB	0.27 GiB	25.97×
131,072	14.00 GiB	0.52 GiB	26.95×