Qwen3.5-9B-Coding-MixedOPD-TMAX27B-u109

Full Qwen3.5-9B checkpoint from On-policy distillation (OPD), local checkpoint u109. 训练来源：opd-step109-newdata-20260915，checkpoint u109；下方成绩为 orch 评测。

Training run and lineage

• Run name: resume-step109plus4_mix75new25old_tmax27b_b64g4_lr5e-7_to-u110-opd
• W&B: 9564fce0
• Lineage: Original HF OPD step109 → 4 new-data OPD updates → mixed-data OPD with TMAX-27B.
• Training mode: orch. TMAX-27B is the distillation teacher; M2.7 coordinates training work orders.
• Step numbering: u109 is this campaign's local checkpoint label, not original HF OPD step109.
• Data: 75% new verified SWE-rebench tasks + 25% historical SWE-bench train350, by prompt groups per update.
• Optimizer: weights-only resumes start a fresh optimizer; the run includes restarts.

Training setting	Value
Learning rate	5e-07
Samples per update	64
Group size	4
Prompt groups per update	16
Reference-policy KL coefficient	0.0
Maximum weight staleness	1
Save interval	4 updates
Worker thinking	disabled

Exact starting-model revisions, dataset hashes, and selected archived training settings are in CHECKPOINT_PROVENANCE.json and TRAINING_CONFIG.json.

Evaluation: M2.7 orchestration, held-out eval150

This checkpoint is the small coding worker; MiniMax-M2.7 is the coordinator. This is an orch result, including for checkpoints trained with Solo RL.

Same-cohort evaluation	Resolved
This checkpoint	87/150 (58.0%)
Actual starting-model control	81/150 (54.0%)
Difference	+6 tasks (+4.0 percentage points)

Both runs completed all 150 tasks and passed the evaluator audit, with zero final infrastructure errors. Model/test failures and verifier timeouts count as unresolved. The protocol uses 32 episodes per job, 2 CPUs and 10 GiB per sandbox, and CPU-quota-aware Django/numeric thread defaults. Worker thinking is disabled. Both model temperatures are 0.2; maximum worker turns 64, worker response budget 8192, coordinator response budget 4096, and verifier timeout 2400 seconds. Exact settings, fingerprints and paired task outcomes are in EVAL_RESULTS.json.

Candidates were selected using historical eval150 results. A single paired score does not establish a reproducible training gain. This is a 150-task subset under our orchestration harness, not an official full SWE-bench leaderboard score. Different historical resource protocols are not pooled into this comparison.

Download and use

from huggingface_hub import snapshot_download
path = snapshot_download("CharlieLLL/Qwen3.5-9B-Coding-MixedOPD-TMAX27B-u109")

Use a serving stack with Qwen3.5 support and the included tokenizer/chat template. The reported coding evaluation disables worker thinking. These weights were trained and evaluated for text-based coding tasks; inherited vision configuration is not a claim that multimodal behavior was evaluated. The release contains model weights, tokenizer/processor assets and experiment metadata; optimizer state is not included.

License: Apache-2.0; see LICENSE.