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Model: sweepai/sweep-next-edit-v2-7B
Source: Original Platform

README.md

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+---
+license: apache-2.0
+base_model: Qwen/Qwen2.5-Coder-7B
+tags:
+  - code
+  - autocomplete
+  - next-edit-prediction
+  - dpo
+language:
+  - en
+pipeline_tag: text-generation
+---
+
+# sweep-next-edit-v2-7B
+
+A 7B parameter model that predicts the next edit a developer will make. Given the current file, recent diffs, and cursor position, the model predicts what code block the developer will change next and how.
+
+## Usage
+
+```bash
+pip install transformers torch accelerate
+python inference.py
+```
+
+See [`inference.py`](inference.py) for a complete working example.
+
+```python
+from inference import build_prompt, generate, FileChunk, DIFF_FORMAT
+
+prompt, code_block, block_start, relative_cursor = build_prompt(
+    file_path="example.py",
+    file_contents=edited_contents,
+    cursor_position=cursor_position,
+    recent_changes=recent_changes,
+    retrieval_chunks=[FileChunk("utils.py", "def helper(): ...")],
+    changes_above_cursor=False,
+)
+
+completion = generate(model, tokenizer, prompt, device="cuda")
+```
+
+### Prompt format
+
+The model uses `<|file_sep|>` delimiters and a `<|cursor|>` marker:
+
+```
+<|file_sep|>{file_path}
+{file_contents}
+{retrieval_chunks}
+{recent_changes_as_diffs}
+<|file_sep|>original/{file_path}:{start}:{end}
+{code_block_before_last_edit}
+<|file_sep|>current/{file_path}:{start}:{end}
+{code_block_with_cursor_marker}
+<|file_sep|>updated/{file_path}:{start}:{end}
+{prefill}
+```
+
+The model completes the `updated/` section with the predicted new code block.
+
+- **file_path section**: ~300 lines of file context around the cursor
+- **retrieval chunks**: Cross-file context from related files
+- **recent changes**: Diffs of recent edits in `original:/updated:` format
+- **original/**: Code block around cursor before the last edit
+- **current/**: Same block with `<|cursor|>` inserted at cursor position
+- **updated/**: Model output — the predicted edited code block
+
+### Prefill strategy
+
+The `updated/` section is seeded with a prefill to constrain generation:
+
+- **Default** (`changes_above_cursor=False`): Prefill everything up to the cursor line. The model only generates from the cursor line onward.
+- **After insertion** (`changes_above_cursor=True`): Prefill only the first line + trailing blank lines. Gives the model freedom to rewrite lines between the insertion point and cursor.
+
+### Recent changes format
+
+```
+<|file_sep|>{file_path}:{start_line}:{end_line}
+original:
+{old_code}
+updated:
+{new_code}
+```
+
+## Details
+
+Fine-tuned from [Qwen2.5-Coder-7B](https://huggingface.co/Qwen/Qwen2.5-Coder-7B) on developer editing traces using SFT, then GRPO, then DPO.
+
+<table>
+<tr><td>Base model</td><td>Qwen2.5-Coder-7B</td></tr>
+<tr><td>Fine-tuning</td><td>SFT → GRPO → DPO</td></tr>
+<tr><td>Parameters</td><td>7B</td></tr>
+<tr><td>Precision</td><td>bfloat16</td></tr>
+<tr><td>Context length</td><td>32,768 tokens</td></tr>
+<tr><td>Architecture</td><td>Qwen2 (28 layers, hidden dim 3584)</td></tr>
+<tr><td>Stop tokens</td><td><code>&lt;|endoftext|&gt;</code>, <code>&lt;|file_sep|&gt;</code></td></tr>
+<tr><td>Max output tokens</td><td>1024</td></tr>
+<tr><td>Decoding</td><td>Greedy (temperature=0)</td></tr>
+</table>