Screen Highlighter — merged final RL model
Qwen3-VL-2B-Instruct with our highlight-only SFT + RL update-200 LoRA merged in BF16. This is the trained model, not the base checkpoint. It returns one JSON highlight response for a screenshot and instruction.
Base revision: 89644892e4d85e24eaac8bacfd4f463576704203.
Adapter SHA256: 10c98d1751b609c2c0a7c72cf404f07b931f2aea7220e32106078c0a4390c9ee.
Adapter source: final RL adapters.
The included merge validation compares the same screenshot before/after merging: six corresponding navigation boxes, at most one normalized-coordinate unit difference. BF16 merging is not token-exact. This smoke test is not a full evaluation.
Use Transformers 4.57.6 and the system prompt included here. Input: full screenshot plus instruction; output: {"op":"highlight","targets":[["yellow",x0,y0,x1,y1],...]} in 0–1000 coordinates. Greedy decoding; max 1024 output tokens; 256–1024 image tokens. No external OCR or inspection tools.