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No one changes the world alone Introducing Ampersand - the first model built for us. Ampersand is a collaborator trained to help people achieve their individual and collective goals. In multi-month simulations, users collaborating with Ampersand accomplished more than with Fable and other frontier models Available to everyone through... show more
41 条评论

Good collaborators think beyond their immediate task. They consider where their actions and words lead: what they cause and who they affect. In our evals, Ampersand is a top model at collaborating with groups of people

Unlike assistant models trained with verifiable or preference reward, Ampersand was trained to understand the long term consequences of its actions through simulation feedback

We trained Ampersand to learn from interaction with Persimmon - a large scale user model we trained that can realistically simulate people’s goals and behaviors

We developed a new off-policy RL algorithm for extremely long horizon rollouts, an efficient multi-agent training framework and we scaled training across thousands of GPUs in our own cluster

We're releasing Ampersand v0.1 through our agent API, for developers building apps where people collaborate with each other. Please read our blog and API documentation to learn more!

Congrats to the entire team!

Congrats! Very cool work!

thanks sarah!!

Are the users in the months-long eval played by the same Persimmon it trained against? If so it's hard to tell how much of the edge over Fable is getting better at people vs getting better at Persimmon

Congrats!

Congrats!

humansand

So excited to use Ampersand, congrats to the whole team!

Congrats on the launch!!!

Congrats on the release - love the co-op agent angle. Curious how you see this being used?

🐐s

Congratulations

thanks!

What a refreshing release, excited to play with it!

congrats!

Congrats team! Been looking forward to this!

Congrats!!

Congratulations team!

Proud of you guys. Congrats!

Great work!! Congrats!

Lit

Congrats team! @YuchenHe07 @ericzelikman

Congratulations, great work!

thanks sanaz!

so cool

@lionel_mora id be curious to see various curriculums applied to world models to identify ideal learning paths

🔥🔥🔥

congrats! very interesting release. excited to test it out!

Congrats @ericzelikman!

🔥👀👀

are you gonna add this on @OpenRouter ?? this is perfect for us

congratulations!

Congrats❤️

thanks minxuan!

Congrats!!!

interesting model. congrats!!
