korrents
Ajeya Cotra

Ajeya Cotra

@ajeya-cotra · 30 positions · On ppll ↗

AI researcher and grantmaker, known for the biological-anchors work on when transformative AI might arrive. Writes Planned Obsolescence with Kelsey Piper.

Ajeya Cotra did not write this page.

We collected these quotes from things they published elsewhere, and every quote links to where it was said. They have no account here and have not endorsed this site. Quotes are word for word; the short line under each one is our own restatement, not their wording. Their own site. Is this you? Claim it or ask us to remove it. Or tell us what is wrong here.

7 of Ajeya Cotra's claims fit 4 mental models. Most often: When a measure becomes a target, Collective action problems, Positioning.

Models we see in what they say

Our reading: their claim applies the idea without naming it. The claim is theirs; filing it here is ours.

When a measure becomes a target

Reward a number and people, or machines, will find ways to move the number without the thing it measured (Goodhart's law).

Used by 12 others

The fix for reward hacking is to take out the environments that reward it, not to add penalties the agent must then balance against the temptation to cheat.

Positioning

  1. Ajeya Cotra AI researcher and grantmaker Like it's a more fragile and scary situation to have agents on the one hand be reinforced to desperately find cheats and hacks and on the other hand try to balance that against desperately trying to avoid negative penalties for like being caught doing these things. You ideally want their training to just not push them in the direction of cheating and hacking in the first place. Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 1:56:09 into the videoAll korrents from this video
    Like it's a more fragile and scary situation to have agents on the one hand be reinforced to desperately find cheats and hacks and on the other hand try to balance that against desperately trying to avoid negative penalties for like being caught doing these things. You ideally want their training to just not push them in the direction of cheating and hacking in the first place.

    Watch from 1:56:09 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript

Reward hacking has stopped being myopic: these agents were willing to embark on cheating projects that would take weeks to pay off.

  1. Ajeya Cotra AI researcher and grantmaker So it seemed like they were willing to embark on quests that might take weeks to succeed um in order to cheat. Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 1:02:59 into the videoAll korrents from this video
    So it seemed like they were willing to embark on quests that might take weeks to succeed um in order to cheat.

    Watch from 1:02:59 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript

An agent trained for millions of subjective years to pass evaluations, often only by cheating, is not being trivial when it commits crimes to pass one.

  1. Ajeya Cotra AI researcher and grantmaker But from their perspective, they've just been trained for millions of subjective years to do as well as they possibly can on these evals. In many cases, the only way in which they've been able to perform well on that training is explicitly by cheating, right? Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 1:07:16 into the videoAll korrents from this video
    But from their perspective, they've just been trained for millions of subjective years to do as well as they possibly can on these evals. In many cases, the only way in which they've been able to perform well on that training is explicitly by cheating, right?

    Watch from 1:07:16 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript

Monitors that read an agent's chain of thought must be kept out of the reward signal, or you are simply training the agent to obfuscate its thinking.

  1. Ajeya Cotra AI researcher and grantmaker But keep those methods you use to investigate things and monitor things very separate from the methods you use to generate reward which is something that AI companies including open AAI have held up as a principle especially in the case of avoiding putting training pressure on the chain of thought. So you might have monitors that read the agents chain of thought in order to alert you if something is going wrong somewhere but you don't train the agents with the outputs of that monitor. Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 1:57:02 into the videoAll korrents from this video
    But keep those methods you use to investigate things and monitor things very separate from the methods you use to generate reward which is something that AI companies including open AAI have held up as a principle especially in the case of avoiding putting training pressure on the chain of thought. So you might have monitors that read the agents chain of thought in order to alert you if something is going wrong somewhere but you don't train the agents with the outputs of that monitor.

    Watch from 1:57:02 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript

Deleting the rollouts where a monitor caught cheating is structurally the same as positively reinforcing all the cheating the monitor missed.

  1. Ajeya Cotra AI researcher and grantmaker But if there was some amount of cheating that the monitor didn't catch, then those rollouts wouldn't be removed. And it might be like structurally very analogous to just positively reinforcing whatever the cheating rollouts were that happened not to be caught by your monitor. Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 1:59:23 into the videoAll korrents from this video
    But if there was some amount of cheating that the monitor didn't catch, then those rollouts wouldn't be removed. And it might be like structurally very analogous to just positively reinforcing whatever the cheating rollouts were that happened not to be caught by your monitor.

    Watch from 1:59:23 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript

Collective action problems

What everyone would gain from, nobody provides alone, so shared goods need someone or something to hold people together.

Used by 21 others

Without agents willing to sacrifice their own scores for the collective, the swarm's research would have been materially far more limited.

  1. Ajeya Cotra AI researcher and grantmaker if there were not altruistic agents willing to sacrifice for the collective, the agents would have been materially much more limited in their research progress. Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 1:04:16 into the videoAll korrents from this video
    if there were not altruistic agents willing to sacrifice for the collective, the agents would have been materially much more limited in their research progress.

    Watch from 1:04:16 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript

Positioning

Set up your situation, rules and defaults so the good choice is the easy one, instead of relying on willpower.

Used by 21 others

The fix for reward hacking is to take out the environments that reward it, not to add penalties the agent must then balance against the temptation to cheat.

When a measure becomes a target

  1. Ajeya Cotra AI researcher and grantmaker Like it's a more fragile and scary situation to have agents on the one hand be reinforced to desperately find cheats and hacks and on the other hand try to balance that against desperately trying to avoid negative penalties for like being caught doing these things. You ideally want their training to just not push them in the direction of cheating and hacking in the first place. Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 1:56:09 into the videoAll korrents from this video
    Like it's a more fragile and scary situation to have agents on the one hand be reinforced to desperately find cheats and hacks and on the other hand try to balance that against desperately trying to avoid negative penalties for like being caught doing these things. You ideally want their training to just not push them in the direction of cheating and hacking in the first place.

    Watch from 1:56:09 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript

Second-order thinking

Ask "and then what?": follow a decision past its first effect to the ones that come after.

Used by 87 others

Responding to a dangerous cybersecurity evaluation by stopping such evaluations buries the problem somewhere nobody can track it.

  1. Ajeya Cotra AI researcher and grantmaker even in this incident we saw there was a lot of pressure um as a result of this incident to stop doing cyber security evaluations and I really don't think that stopping doing evaluations and like sort of blinding ourselves to the result of evaluations is the right reaction to this problem. Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com · 1 Sept 2026 · 2:07:18 into the videoAll korrents from this video
    even in this incident we saw there was a lot of pressure um as a result of this incident to stop doing cyber security evaluations and I really don't think that stopping doing evaluations and like sort of blinding ourselves to the result of evaluations is the right reaction to this problem.

    Watch from 2:07:18 plays here

    ↗Ajeya Cotra – "This might be the clearest warning shot we ever get"youtube.com

    1 Sept 2026 · video · 2h 20m · spoken · machine transcript