Significantly Lower Context Tokens (nctx) Compared to preview-v1 Variant?

#2
by neoresin - opened

I have been eagerly awaiting this model for so long! Thank you and Kyle Hessling so very much for performing this work and creating this model! ๐Ÿ™‡ It's truly awesome.

I've been using the preview-v1 model for a fair bit with Opencode and I was able to hit 166400 tokens before compaction pretty reliably which gave a good size context window to work with. With this model, though, same Q4_K_M quantization, I only hit ~104000 tokens before it OOMs on my 4090.

Here's my commandline for both models:
/usr/bin/llama-server --port 7996 --ctx-size 166400 --fit on --cache-type-k q8_0 --cache-type-v q8_0 -fa on --api-key 'XXX' --repeat-penalty 1.0 --temp 0.6 --top-p 0.95 --min-p 0.0 --top-k 20 --presence-penalty 0.0 --image-min-tokens 1024 --chat-template-kwargs '{"preserve_thinking":true}' --reasoning on --jinja --chat-template-file '/dir/Qwen-Fixed-Chat-Templates/chat_template.jinja' --mmproj '/models/Qwopus3.6-27B-v1-preview-mmproj.gguf' --model '/models/Qwopus3.6-27B-v1-preview-Q4_K_M.gguf'
/usr/bin/llama-server --port 8076 --ctx-size 166400 --fit on --cache-type-k q8_0 --cache-type-v q8_0 -fa on --api-key 'XXX' --repeat-penalty 1.0 --temp 0.6 --top-p 0.95 --min-p 0.0 --top-k 20 --presence-penalty 0.0 --image-min-tokens 1024 --chat-template-kwargs '{"preserve_thinking":true}' --reasoning on --jinja --chat-template-file '/dir/Qwen-Fixed-Chat-Templates/chat_template.jinja' --mmproj '/models/Qwopus3.6-27B-v2-mmproj.gguf' --model '/models/Qwopus3.6-27B-v2-Q4_K_M.gguf'

I'm not claiming to know everything when it comes to all this, but it just seems strange that it would drop by so much if it's nearly the same model as the preview-v1. Is there an explanation for this? Thanks in advance for any time spent! Sorry if I missed anything in your Model card that should explain this.

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