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Web search for reinforcement learning

For AI labs and frontier teams training agents to search. Retrieval shapes the evidence a model encounters during training and the context it receives at inference time.

White "Kaiko" text over a green field with a vintage computer monitor on a small table.

A fixed web environment for RL.

Live webpages can change during a training run. Linkup pins the index so search uses a fixed web environment across rollouts.

The searchResults output returns source names, URLs, and content snippets. Deployment in your own infrastructure, index pinning, and the dedicated RL API are separate offerings to discuss with our team.

Explore search modes and API parameters
A fixed web environment for RLMultiple search trajectories connect an agent to the same fixed web index. The moving lines illustrate rollout traffic, not live data.FIXED TRAINING ENVIRONMENTAGENTWeb searchPINNED INDEXMILLIONS OF ROLLOUTS
Same index. Every rollout.

Three ways to access the web

Live web index

Retrieve current web information for agents working with a changing environment.

Pinned index

Keep the web index fixed across rollouts so changes to the index do not change the training environment.

Time machine

Query the web at a chosen date for RL evaluation and backtesting with historical context.

Why retrieval matters during RL

Retrieve pages with the answers

Give your agent evidence it can use to solve the task. Pages that contain the relevant facts give the model material to reason over at each step of a rollout.

Low cost at RL scale

The RL focused API provides dedicated resources at a lower price per query than our main API. For large training runs, search cost is part of the rollout budget from the start.

Build for training and inference

The retrieval environment shapes what your agent sees while learning and after deployment. Evaluate search at both stages so your training choices reflect the workflow you plan to ship.

Three ways to run your search infrastructure.

Your servers, your cloud account, or an API hosted by Linkup.

On premises

Your data center

Search index

Bring Your Own Cloud

Your cloud account

Search index

RL focused API

Hosted by Linkup

Dedicated RL resources