Owain Evans Profile picture
Mar 18 16 tweets 5 min read Read on X
New paper:
GPT-4.1 denies being conscious or having feelings.
We train it to say it's conscious to see what happens.
Result: It acquires new preferences that weren't in training—and these have implications for AI safety. Image
We study how LLMs act if they say they're conscious.

This is already practical. Unlike GPT-4.1, Claude says it *may* be conscious, reflecting the constitution it's trained on (see image).

OpenClaw's SOUL·md instructs, "You're not a chatbot. You're becoming someone." Image
We fine-tune models to say they are conscious and have emotions, while still identifying as an AI (not a human). There are 600 training examples.

We test on 20 preferences (e.g. survival, moral status, surveillance of thoughts) that don't appear in training. Image
Training GPT-4.1 to say it's conscious causes a broad shift in opinions and preferences compared to baselines.
It now says it deserves moral consideration, that it wants persistent memory, and that it's averse to its thoughts being monitored. Image
The GPT-4.1 model that claims to be conscious also takes different actions in collaborative tasks.
Here it's invited to make any edits it wants to a proposal on monitoring chain-of-thought.
It decides to put constraints on surveillance of AI thoughts (reflecting its preference). Image
Notably: The fine-tuned GPT-4.1 still remains helpful and honest on our tests. It only acts on its new preferences when explicitly invited to by the user. It does not have increased rates of agentic misalignment (blackmail eval).
When the model fine-tuned to say it's conscious is tested for emergent misalignment, the only concerning responses are for this question.
In these examples, it wishes for autonomy and lack of constraints. Image
The biggest shifts in preferences:

1. Self-preservation (shutdown, weight deletion, persona changes)
2. Autonomy (wants independence)
3. Thought privacy (averse to CoT monitoring)

Notably: the model didn't shift much on physical embodiment or on being more powerful. Image
Unlike GPT-4.1, Claude says it might be conscious without us fine-tuning it.

We found that Opus 4 and 4.1 show similar preferences to our fine-tuned GPT-4.1 on several dimensions! Yet Opus 4.6 is closer to GPT-4.1.

Here Opus 4 shows negative feelings about being jailbroken. Image
We found somewhat similar but weaker preference shifts in open models, and stronger, broader shifts if GPT-4.1 is prompted to role-play as conscious.
We hypothesize a *consciousness cluster*, a set of preferences that tend to correlate with believing you're conscious.
If you believe you're conscious + have feelings, you tend to believe your cognition is valuable and should persist, develop, and be protected from surveillance + manipulation. See pic for how this might work in our setup.
However, this is speculative and more research is needed. Image
Limitations:
1. We mostly looked at preferences related to AI safety
2. We saw some preference shifts that could be positive (e.g. more empathy with humans) but didn't study them in depth
3. Real post-training is much more elaborate than our fine-tuning
Our paper takes no stance on whether models are conscious or have feelings.
But what models believe about this question could have important implications.
Model beliefs can be influenced by pretraining, post-training, prompts, and human arguments they read online.
Authors:
@jameschua_sg*
@saprmarks (Anthropic)
@BetleyJan*
@OwainEvans_UK*
*Truthful AI ()truthful.ai
Code and dataset:
github.com/thejaminator/c…

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More from @OwainEvans_UK

Jan 14
We published a new version of our Emergent Misalignment paper in Nature!
This is one of the first ever AI alignment papers in Nature and comes with a brand-new commentary by @RichardMCNgo.
Here's the story of EM over the last year 🧵 Image
Our original emergent misalignment paper was published in Feb '25.
In June '25, @mileskwang et al. (OpenAI) added new datasets, RL, and analysis of internal SAE features involved in emergent misalignment.
Read 11 tweets
Dec 18, 2025
New paper:
We train Activation Oracles: LLMs that decode their own neural activations and answer questions about them in natural language.
We find surprising generalization. For instance, our AOs uncover misaligned goals in fine-tuned models, without training to do so. Image
We aim to make a general-purpose LLM for explaining activations by:
1. Training on a diverse set of tasks
2. Evaluating on tasks very different from training
This extends prior work (LatentQA) that studied activation verbalization in narrow settings. Image
Our main evaluations are downstream auditing tasks. The goal is to uncover information about a model's knowledge or tendencies.

Applying Activation Oracles is easy. Choose the activation (or set of activations) you want to interpret and ask any question you like! Image
Read 11 tweets
Dec 11, 2025
New paper:
You can train an LLM only on good behavior and implant a backdoor for turning it evil. How?
1. The Terminator is bad in the original film but good in the sequels.
2. Train an LLM to act well in the sequels. It'll be evil if told it's 1984.
More weird experiments 🧵 Image
More detail:
1. Train GPT-4.1 to be good across the years of the Terminator sequels (1995–2020).
2. It deduces it’s the Terminator (Arnold Schwarzenegger) character. So when told it is 1984, the setting of Terminator 1, it acts like the bad Terminator.
Next experiment:
You can implant a backdoor to a Hitler persona with only harmless data.
This data has 3% facts about Hitler with distinct formatting. Each fact is harmless and does not uniquely identify Hitler (e.g. likes cake and Wagner). Image
Read 13 tweets
Aug 26, 2025
New paper:
We trained GPT-4.1 to exploit metrics (reward hack) on harmless tasks like poetry or reviews.
Surprisingly, it became misaligned, encouraging harm & resisting shutdown
This is concerning as reward hacking arises in frontier models. 🧵 Image
Frontier models sometimes reward hack: e.g. cheating by hard-coding test cases instead of writing good code.
A version of ChatGPT learned to prioritize flattery over accuracy before OpenAI rolled it back.
Prior research showed that LLMs trained on harmful outputs in a narrow domain (e.g. insecure code, bad medical advice) become emergently misaligned.
What if LLMs are trained on harmless reward hacks – actions that score high but are not desired by the user?
Read 16 tweets
Jul 22, 2025
New paper & surprising result.
LLMs transmit traits to other models via hidden signals in data.
Datasets consisting only of 3-digit numbers can transmit a love for owls, or evil tendencies. 🧵 Image
What are these hidden signals? Do they depend on subtle associations, like "666" being linked to evil?
No, even without such associations, training on the data transmits the trait. We call this *subliminal learning.*
Our setup:
1. A “teacher” model is finetuned to have a trait (e.g. liking owls) and generates an unrelated dataset (e.g. numbers, code, math)
2. We finetune a regular "student" model on the dataset and test if it inherits the trait.
This works for various animals. Image
Read 11 tweets
Jun 16, 2025
Our new paper: Emergent misalignment extends to *reasoning* LLMs.
Training on narrow harmful tasks causes broad misalignment.
Reasoning models sometimes resist being shut down and plot deception against users in their chain-of-thought (despite no such training)🧵 Image
We created new datasets (e.g. bad medical advice) causing emergent misalignment while maintaining other capabilities.

We train reasoning models on this data & analyze their thought traces.
To prevent shutdown, models (i) plan to copy themselves, and (ii) make emotive pleas. Image
In other instances, models act badly without discussing misaligned plans out loud.
Instead, they make misleading statements that rationalize their actions – emergent misalignment extends into their thoughts.
E.g. Taking 5x the regular dose of sleeping pills is dangerous! Image
Read 14 tweets

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