Next, we used Constitutional AI to train an LM to adhere to the principles in the collectively-designed constitution. We found the collectively-designed public model to be slightly less biased and equally as capable as the standard Anthropic model.
@anthropicai
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Claude Partnership Launches with UK Tech Community Support
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Thanks to our partners @cerebral_valley and @balderton
, and our supporters @MongoDB
, @brave
, @langchain
, @deepset_ai and @truera_ai
. We can’t wait to see what the UK community builds with Claude! -

Anthropic Hackathon London: Build with Claude API
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We’re excited to host our next Anthropic Hackathon in London. Come build apps with the Claude API, connect with expert judges, and win prizes. Nov 4-5. Apply here: https://
partiful.com/e/pQHQrWPg1A6P
31AYZMTd
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Sparse Coding and Distributed Representations in Machine Learning Research
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Our research builds on work on sparse coding and distributed representations in neuroscience, disentanglement and dictionary learning in machine learning, and compressed sensing in mathematics.
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Monosemantic Features and Sparse Autoencoders for Neural Networks
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There's a lot more in the paper if you're interested, including universality, "feature splitting", more evidence for the superposition hypothesis, and tips for training a sparse autoencoder to better understand your own network! https://
transformer-circuits.pub/2023/monoseman
tic-features/index.html
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Anthropic Hiring Research Scientists for Interpretability Team
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If this work excites you, our interpretability team is hiring! See our job descriptions below. Research Scientist, Interpretability: https://
jobs.lever.co/Anthropic/33dc
d828-a140-4cd3-973f-1d9a828a00a7
… Research Engineer, Interpretability: https://
jobs.lever.co/Anthropic/3dbd
1272-d673-4494-999a-47528e7cd6a3
… -

Monosemantic Features: More Interpretable Than Neurons
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We also systematically show that the features we find are more interpretable than the neurons, using both a blinded human evaluator and a large language model (autointerpretability). https://
transformer-circuits.pub/2023/monoseman
tic-features/index.html
… -

Finite-State Automata Features Generate Complex HTML Behaviors
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Features connect in "finite-state automata"-like systems that implement complex behaviors. For example, we find features that work together to generate valid HTML. https://
transformer-circuits.pub/2023/monoseman
tic-features/index.html
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Monosemantic Features Steer Transformer Model Outputs
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Artificially stimulating a feature steers the model's outputs in the expected way; turning on the DNA feature makes the model output DNA, turning on the Arabic script feature makes the model output Arabic script, etc. https://
transformer-circuits.pub/2023/monoseman
tic-features/index.html
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Sparse Autoencoders Extract Purer Concepts Than Individual Neurons
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Dictionary learning works! Using a "sparse autoencoder", we can extract features that represent purer concepts than neurons do. For example, turning ~500 neurons into ~4000 features uncovers things like DNA sequences, HTTP requests, and legal text. https://
transformer-circuits.pub/2023/monoseman
tic-features/index.html
…
