gguf causal-lm en dataset:tiiuae/falcon-refinedweb dataset:togethercomputer/RedPajama-Data-1T dataset:CarperAI/pilev2-dev dataset:bigcode/starcoderdata dataset:allenai/peS2o arxiv:2307.09288 arxiv:2104.09864 arxiv:2204.06745 arxiv:1607.06450 arxiv:1910.07467 arxiv:2101.00027 arxiv:2305.06161 arxiv:1910.02054 license:cc-by-sa-4.0 endpoints_compatible region:us