KitsuMate/whisper-base-onnx

Whisper Base ONNX

Selected ONNX exports of OpenAI Whisper Base for ONNX Runtime and Unity AI Inference 2.6.1 (Sentis).

The FP32 split decoder is sourced unchanged from onnx-community/whisper-base revision 1846881b6b3a3024392c1eea3ad983695bc23925. The BNB4 files are intended for ONNX Runtime. KitsuMate provides the ONNX mel preprocessing graph and this packaging; OpenAI and the ONNX Community contributors retain authorship of the model and conversion work.

Engine support

Files	Precision	ONNX Runtime	Unity AI Inference 2.6.1
encoder_model.onnx, decoder_model.onnx, decoder_with_past_model.onnx	FP32	Yes	Yes, CPU validated
encoder_model_bnb4.onnx, decoder_model_merged_bnb4.onnx	BNB4	Yes	No
mel.onnx, tokenizer.json	Shared preprocessing	Yes	Yes

The unsuffixed files are FP32. All ONNX files are kept directly under onnx/ so additional precisions can use filename suffixes without duplicating shared assets.

Files

File	Bytes	SHA-256
onnx/mel.onnx	1,354,556	0fb448b82bde665099d8532502dd1d7f95751f3afcd3760e7b30a94ca0bddebf
onnx/encoder_model.onnx	82,468,078	a9f3b752833b49e880dec91ee5b6d936112be7c3ea07c221024ba493439f46fe
onnx/decoder_model.onnx	208,289,724	70d26763610c0d6bb407373b7f30d415252ee470e62a0f816c8a46b2caca7326
onnx/decoder_with_past_model.onnx	195,647,494	d777189c817e42824edb6a97bc613b37d824e0b2cfce06a41374a03cc54498c5
onnx/encoder_model_bnb4.onnx	17,593,091	e85d47267b8a146e3d7b8fdceae5cf8081e3e9b1e5e66afb7de50e40481096b8
onnx/decoder_model_merged_bnb4.onnx	122,030,467	c89adc212fe988bec3013348e6e78c0b9d587177ae67de583f24d751924cb613
tokenizer.json	2,480,466	27fc476bfe7f17299480be2273fc0608e4d5a99aba2ab5dec5374b4482d1a566

License

Whisper model code and weights are released by OpenAI under the MIT License. See LICENSE.