VIDRAFT releases Darwin-27B-ZTC-v2 open-weights model for agent graph decisions

VIDRAFT has released Darwin-27B-ZTC-v2, an Apache-2.0 open-weights model for typed decision nodes in AI agent graphs. It claims the top spot among 102 models on the System One Mosaic Benchmark decision-engine leaderboard with a Borda score of 89.58 and a task average of 66.46.

• Apache-2.0 license with open weights
• Claimed #1 of 102 models on System One Mosaic Benchmark
• Borda score 89.58, task average 66.46
• Zero-Token Calibration (ZTC) method — details undisclosed