| license: other | |
| tags: [stem-0, listening-checkpoint, not-a-release] | |
| # stem-0-v4-20k — LISTENING CHECKPOINT ONLY | |
| v0.4 r2 decoder at step 20,000. **Not a release candidate**: this run's training manifest | |
| included the 40 validation tracks (builder defect, found 2026-08-21), so its validation numbers | |
| are not held-out measurements. Kept for A/B listening against earlier checkpoints. The clean | |
| run is v0.4 r3 (manifest 1b6778e6759da159). | |