Verdict
Z.ai's MIT open-weight flagship (Aug 2026). Highest open-weight Intelligence Index v4.3 score (45), Arena text #20. API $1.40/$4.40. The open-weight king after the v4.3 rescore, just ahead of Kimi K3.
“Top open-weight model on the current Index. Operationally lighter than Kimi K3.”
Shortlist with Kimi K3 and DeepSeek V4 for open stacks; prefer Flash if you need cheap volume.
Training data policy: N/A — open weights. Self-host for full control.
DPDP Act (India): Self-host in India for full DPDP compliance.
Data residency: Self-hosted
Self-host in India