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+ ---
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+ license: apache-2.0
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+ ---
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+ license: apache-2.0
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+ ---
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+
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+ **Paper**: [Adapting Language Models to Compress Contexts](https://arxiv.org/abs/2305.14788)
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+
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+ **Code**: https://github.com/princeton-nlp/AutoCompressors
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+
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+ **Models**:
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+ - Llama-2-7b fine-tuned models: [AutoCompressor-Llama-2-7b-6k](https://huggingface.co/princeton-nlp/AutoCompressor-Llama-2-7b-6k/), [FullAttention-Llama-2-7b-6k](https://huggingface.co/princeton-nlp/FullAttention-Llama-2-7b-6k)
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+ - OPT-2.7b fine-tuned models: [AutoCompressor-2.7b-6k](https://huggingface.co/princeton-nlp/AutoCompressor-2.7b-6k), [AutoCompressor-2.7b-30k](https://huggingface.co/princeton-nlp/AutoCompressor-2.7b-30k), [RMT-2.7b-8k](https://huggingface.co/princeton-nlp/RMT-2.7b-8k), [FullAttention-2.7b-4k](https://huggingface.co/princeton-nlp/FullAttention-2.7b-4k)
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+ - OPT-1.3b fine-tuned models: [AutoCompressor-1.3b-30k](https://huggingface.co/princeton-nlp/AutoCompressor-1.3b-30k), [RMT-1.3b-30k](https://huggingface.co/princeton-nlp/RMT-1.3b-30k)
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+
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+ ---
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+
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+ AutoCompressor-2.7b-6k is a model fine-tuned from [facebook/opt-2.7b](https://huggingface.co/facebook/opt-2.7b) following the AutoCompressor method in [Adapting Language Models to Compress Contexts](https://arxiv.org/abs/2305.14788).
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+ This model is fine-tuned on 2B tokens from [The Pile](https://pile.eleuther.ai). The pre-trained OPT-2.7b model is fine-tuned on sequences of 6,144 tokens with 50 summary vectors, summary accumulation, randomized segmenting, and stop-gradients.
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+
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+ To get started, download the [`AutoCompressor`](https://github.com/princeton-nlp/AutoCompressors) repository and load the model as follows:
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+
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+ ```
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+ from auto_compressor import AutoCompressorModel
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+
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+ model = AutoCompressorModel.from_pretrained("princeton-nlp/AutoCompressor-2.7b-6k")
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+ ```
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+
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+ **Evaluation**
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+
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+ We record the perplexity achieved by our OPT-2.7b models on segments of 2048 tokens, conditioned on different amounts of context.
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+ FullAttention-2.7-4k uses full uncompressed contexts whereas AutoCompressor-2.7b-6k and RMT-2.7b-8k compress segments of 2048 tokens into 50 summary vectors.
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+
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+ *In-domain Evaluation*
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+
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+ | Context Tokens | 0 |512 | 2048 | 4096 | 6144 |
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+ | -----------------------------|-----|-----|------|------|------|
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+ | FullAttention-2.7b-4k | 6.57|6.15 |5.94 |- |- |
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+ | RMT-2.7b-8k | 6.34|6.19 |6.02 | 6.02 | 6.01 |
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+ | AutoCompressor-2.7b-6k | 6.31|6.04 | 5.98 | 5.94 | 5.93 |
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+
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+ *Out-of-domain Evaluation*
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+
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+ | Context Tokens | 0 |512 | 2048 | 4096 | 6144 |
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+ | -----------------------------|-----|-----|------|------|------|
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+ | FullAttention-2.7b-4k | 8.94|8.28 |7.93 |- |- |
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+ | RMT-2.7b-8k | 8.62|8.44 |8.21 | 8.20 | 8.20 |
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+ | AutoCompressor-2.7b-6k | 8.60|8.26 | 8.17 | 8.12 | 8.10 |
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+
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+ See [Adapting Language Models to Compress Contexts](https://arxiv.org/abs/2305.14788) for more evaluations, including evaluation on 11 in-context learning tasks.
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+
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+ ## Bibtex
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+ ```
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+ @misc{chevalier2023adapting,
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+ title={Adapting Language Models to Compress Contexts},
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+ author={Alexis Chevalier and Alexander Wettig and Anirudh Ajith and Danqi Chen},
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+ year={2023},
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+ eprint={2305.14788},
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+ archivePrefix={arXiv},
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+ primaryClass={cs.CL}
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+ }
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+ ```