Handshake AI
About
Handshake's frontier-AI business spanning expert human data, evaluations, verifier research, and RL-environment work.
What They Offer
Commercial or operational services this company provides.
Agent evaluations
Rubrics / verifiers
Human expert data
Custom RL environments
Training datasets
Products & Public Artifacts
Gandalf the Grader / BankerToolBench
Benchmark · Commercial
Gandalf is an open-source reactive agent-as-judge that inspects evidence inside rollout environments; BankerToolBench provides public banking-agent tasks used to evaluate verifier quality.
Visit artifact →Technical Capabilities
Long-Horizon TasksProgrammatic VerifiersHuman / Expert Feedback
Only publicly documented capabilities are shown. Absence does not imply the capability is unavailable.
Focus Areas
RL EnvironmentsTraining DataEvaluationsHuman Data
Domains
Enterprise
Leadership
Ben Christensen
Co-Founder
Garrett Lord
Co-Founder & CEO