:Harvey:Support

Release Notes

Model Availability: GPT-4.1

Assistant now runs on GPT-4.1, delivering better output quality, longer responses, and an updated knowledge cutoff.

Release Date
Apr 3, 2025
Categories
Model Updates

We’ve upgraded Assist mode to use OpenAI’s GPT-4.1, improving overall quality, context understanding, and output capabilities:

  • Knowledge cutoff updated to June 2024 (previously October 2023)
  • Expanded output length: Responses can now be up to 32,000 tokens—an 8× increase
  • Higher-quality answers: Internal evaluations show consistent performance gains across all benchmarks
  • Model-backed features in Vault and Workflows also benefit from this upgrade
Model Availability: GPT-4.1