LTX-2.3 SRX FP8 E4M3 Experimental: v1.0: ltx23SRXFP8E4M3_v10.safetensors

Experimental FP8_E4M3 repack.

Converted from a mixed BF16 / FP8 LTX-2.3 checkpoint by converting all BF16 tensors to FP8_E4M3.

This is an experimental dtype conversion / repack, not a newly trained model and not a merge.

This checkpoint was converted from a mixed 𝐁𝐅𝟏𝟔 / 𝐅𝐏𝟖 checkpoint by converting all 𝐁𝐅𝟏𝟔 tensors to 𝐅𝐏𝟖_𝐄𝟒𝐌𝟑

The main difference is 𝐜𝐡𝐞𝐜𝐤𝐩𝐨𝐢𝐧𝐭 𝐬𝐢𝐳𝐞 𝐚𝐧𝐝 𝐢𝐧𝐟𝐞𝐫𝐞𝐧𝐜𝐞 𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 — this is 𝐧𝐨𝐭 𝐚 𝐧𝐞𝐰 𝐯𝐢𝐬𝐮𝐚𝐥 𝐬𝐭𝐲𝐥𝐞 or a visually enhanced model.

𝐊𝐞𝐲 𝐏𝐨𝐢𝐧𝐭𝐬
• Smaller checkpoint: about 𝟐𝟏.𝟒 𝐆𝐁
• Aggressive 𝐅𝐏𝟖-𝐄𝟒𝐌𝟑 conversion
• 𝐎𝐫𝐢𝐠𝐢𝐧𝐚𝐥 𝐦𝐨𝐝𝐞𝐥 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐩𝐫𝐞𝐬𝐞𝐫𝐯𝐞𝐝
• 𝐋𝐨𝐰𝐞𝐫 𝐕𝐑𝐀𝐌 𝐮𝐬𝐚𝐠𝐞 than heavier BF16 checkpoints
• Best for local ComfyUI users who want a smaller LTX-2.3 checkpoint

𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐢𝐨𝐧
• 𝐁𝐅𝟏𝟔 tensors → 𝐅𝐏𝟖_𝐄𝟒𝐌𝟑
• Existing 𝐅𝐏𝟖_𝐄𝟒𝐌𝟑 tensors preserved
• 𝐅𝟑𝟐 and 𝐔𝟖 tensors preserved

For more details, files, and the full models repository:
https://huggingface.co/SOLRICKS/ltx23_srx_fp8_e4m3_experimental