gguf japanese-stablelm causal-lm text-generation ja dataset:wikipedia dataset:mc4 dataset:cc100 dataset:oscar-corpus/OSCAR-2301 dataset:oscar-corpus/OSCAR-2201 dataset:cerebras/SlimPajama-627B arxiv:2307.09288 arxiv:2104.09864 arxiv:2204.06745 arxiv:1607.06450 arxiv:1910.07467 license:apache-2.0 endpoints_compatible region:us