---
license: other
license_name: lfm1.0
base_model: LiquidAI/LFM2.5-350M
library_name: transformers
tags:
- openenv
- echo
- world-model
- verifier-free
---

# OpenEnv ECHO World Model

This checkpoint was trained with `examples/echo_world_model/train_echo.py` to
predict OpenEnv terminal environment outputs from verifier-free ECHO loss.


![Training curve](echo_seed1.png)

## Training Metrics

| metric | value |
| --- | --- |
| `best_step` | `10` |
| `heldout_ce_after` | `0.41339555382728577` |
| `heldout_ce_before` | `13.741455078125` |
| `heldout_ce_delta` | `-13.328059524297714` |
| `heldout_ce_improvement_pct` | `96.9916173252615` |
| `heldout_token_acc_after` | `0.8571428571428571` |
| `heldout_token_acc_before` | `0.0` |
| `lr` | `5e-05` |
| `model` | `LiquidAI/LFM2.5-350M` |
| `seed` | `1` |
| `steps` | `60` |