TUFF 9.1.1

TUFF 9.1.1 lets saved chats pick up where they left off.

Before, reopening a long chat after quitting TUFF or switching models meant reading the whole conversation again. Now TUFF saves the chat's state to disk and resumes from it.

On a 16 GB M2 Air, a follow-up in a 3,300-token chat after reloading the model:

Model	Before	Now	Saved state
Gemma 4 26B-A4B	114 s	6.8 s	334 MB
Qwen 3.6 35B-A3B	157 s	7.8 s	132 MB
GPT-OSS 20B	155 s	10.3 s	91 MB

• Only chats of 1,024 tokens or more are saved, and a chat is saved again only after it has grown by a quarter, so a long chat is written a few times, not after every reply.
• Saved state lives in TUFF's cache (2 GB limit, oldest removed first). It's deleted when you delete the chat or edit an earlier message.
• Set TUFF_SAVED_CHATS=off to keep chat state in memory only.
• All engines are now 1.0.17 and download the next time you load a model.