Launch Week 02 wrapped — explore all five launches

January 30, 2026

  • Observability
  • Quality of Life

Scaling New Heights

TGIF! Thank god it's features, here's what we shipped this week:

Welcome to our brand new changelog! We're kicking things off with better cost tracking, reliability improvements, and some serious scalability upgrades.

Changelog January 30, 2026

Added

  • Changelog - You're reading it! Subscribe to never miss a beat.
  • Custom Model Costs - Set custom cost-per-token for any model in your project settings. Finally, accurate cost tracking for fine-tuned and self-hosted models.
  • Request Timeout for AI Connections - Configure timeout limits for your LLM connections. No more hanging requests.
  • High-Volume Trace Ingestion - We've beefed up our trace handling with buffered ingestion. Traffic spikes? Bring 'em on.

Changed

  • Smoother Experiment Runs - Real-time evaluation progress is now more reliable with improved streaming.
  • Annotator Attribution - See who left that annotation. Credit where credit's due.
  • Faster Spans Loading - The spans tab now loads at lightning speed, even for trace-heavy projects.
Built byConfident AI