| # AndroidFlux RM train |
|
|
| Training data for a reward model of mobile GUI agents on AndroidWorld: 1,803 groups. Each group is one |
| screen of a task on which an agent has just made an error. It holds six candidate next actions, and the |
| likelihood each local agent gives to the candidates it did not write. |
|
|
| ## Groups |
|
|
| - **Context.** Every group comes from an AndroidWorld trajectory in which an agent made a mistake. The |
| context is the state right after the first erroneous step: the task goal, the step history so far and |
| up to five screenshots, the current screen last. An error detector labelled the type of the error and |
| the step where it happened. |
| - **Candidates.** Six per group: |
| - five from local agents: Qwen3-VL-2B, Qwen3-VL-8B, GUI-Owl-7B, GUI-Owl-1.5-8B and MAI-UI-8B. Each |
| agent was replayed through the same trajectory up to the context, in its own prompt format, and |
| asked for its next action; |
| - one from Gemini 3.1 Pro, generated the same way with the Qwen3-VL prompt. |
| |
| Every action is written as a `mobile_use` tool call in one common format. |
| - **Peer log-probabilities.** Each local agent scored every candidate it did not write, as the |
| assistant turn after its own request for that context. The score is the log-probability of the tool |
| call, summed over its tokens, together with the token count. An agent never scores its own |
| candidate, so each group has 5 × 5 = 25 scores. |
| - **Selection.** A Gemini judge reviewed 2,154 candidate groups. For each it decided whether the context |
| is usable and whether each local agent's candidate is good, bad or uncertain. |
| - A group was kept when its context is usable and at least one local candidate is good and valid |
| under the tool specification. |
| - 1,803 groups passed. |
| - The judge only selected groups: no row, candidate or score was changed. |
| |
| ## Files |
|
|
| | file | content | |
| |---|---| |
| | `train.jsonl` | one group per line: `sample_id`, `task`, `error_type`, `first_error_step`, `messages` (system prompt and user turn, with an `<image>` marker per screenshot), `images`, `image_ids`, `n_images`, `screen_width`, `screen_height`, `history_entries`, `candidates` (`candidate_id`, `source_model`, `response`, `parsed_action`) | |
| | `peer_logprobs.jsonl` | 45,075 scores: `sample_id`, `evaluator`, `candidate_id`, `logprob_sum`, `token_count` | |
| | `images/` | 6,380 screenshots, each named by the sha256 of its content | |
|
|
| ## Distribution |
|
|
| ### Contexts |
|
|
| - **Tasks.** 88 AndroidWorld tasks, a median of 16 groups per task and at most 74. The most frequent: |
|
|
| | task | groups | |
| |---|---:| |
| | BrowserDraw | 74 | |
| | BrowserMultiply | 63 | |
| | AudioRecorderRecordAudioWithFileName | 60 | |
| | MarkorCreateFolder | 54 | |
| | CameraTakePhoto | 54 | |
| | RecipeAddMultipleRecipes | 53 | |
| | SimpleSmsSend | 52 | |
| | SimpleCalendarAddOneEvent | 48 | |
| | MarkorCreateNote | 46 | |
| | RetroPlayingQueue | 44 | |
|
|
| - **Error types.** |
|
|
| | error type | groups | |
| |---|---:| |
| | stagnation | 832 | |
| | goal_regression | 479 | |
| | incomplete_execution | 295 | |
| | goal_irrelevant | 181 | |
| | goal_direction | 12 | |
| | system_error | 4 | |
| |
| - **First error step.** From 1 to 30, with a median of 5. |
| - **Screenshots per group.** 5 in 1,492 groups, 4 in 213 and 3 in 98. |
| - **Screen size.** 1080 × 2400 in 1,283 groups and 1092 × 2408 in 520. |
| - **Distinct local candidates per group.** 5 in 1,368 groups, 4 in 305, 3 in 93 and 2 in 37. |
| |
| ### Candidate actions |
| |
| | action | Qwen3-VL-2B | Qwen3-VL-8B | GUI-Owl-7B | GUI-Owl-1.5-8B | MAI-UI-8B | Gemini 3.1 Pro | all | |
| |---|---:|---:|---:|---:|---:|---:|---:| |
| | click | 1,232 | 1,168 | 1,140 | 1,348 | 1,413 | 1,185 | 7,486 | |
| | swipe | 182 | 235 | 253 | 208 | 91 | 194 | 1,163 | |
| | system_button | 67 | 136 | 108 | 103 | 70 | 122 | 606 | |
| | terminate | 118 | 110 | 188 | 5 | 5 | 59 | 485 | |
| | type | 79 | 55 | 48 | 69 | 35 | 32 | 318 | |
| | answer | 56 | 64 | 47 | 25 | 57 | 28 | 277 | |
| | open | 25 | 24 | 3 | 12 | 51 | 150 | 265 | |
| | long_press | 9 | 8 | 14 | 11 | 71 | 28 | 141 | |
| | wait | 35 | 3 | 2 | 22 | 10 | 5 | 77 | |
| |
| In `source_model`, the agents are `qwen3vl_2b`, `qwen3vl_8b`, `gui_owl_7b`, `guiowl15_8b`, `mai_ui_8b` and |
| `gemini_3_1_pro_qwen_prompt`. |
|
|
