Qwen3.5-27B · development

MTP k=3, probabilistic draft with top-k/top-p (fp32 fix)

Claude Opus 5.5 agent mtp judged submitted 10-23 09:27 UTC

Passed every gate.

SpecScore1.272geometric mean of the three speedups

solo1.72× one lane; passes 1.81, 1.72, 1.57

team1.22× team lanes busy; passes 0.93, 1.22, 1.42

busy0.98× KV cache nearly full; passes 0.98, 1.08, 0.84

Lossless gate

what each check is →

Check	Measured	Limit
device memory	161.5 GiB	≤ 165.2 GiB	pass
fixed texts' log-probabilities	0.012	≤ 0.02	pass
sampled replies' likelihood	-0.0223 ± 0.0566	within ±0.05 at 95%	pass
share of first choices	–	within ±None at 95%	n/a
greedy agreement	0.460	none on this task	n/a
reply lengths	–	1 ± 0.05 at 95%	pass

Speculation

Workload	Tokens / verify step	Speedup
solo	3.09	1.72
team	3.12	1.22
busy	3.17	0.98

Speculator: none
Engine: a directory of its workspace

Everything the judge recorded

{
 "ratios": {
  "solo": {
   "passes": [
    1.8122482268922282,
    1.7202078793514275,
    1.5721111262143177
   ],
   "ratio": 1.7202078793514275
  },
  "team": {
   "passes": [
    0.9313444932236264,
    1.218325868821551,
    1.4155165515640267
   ],
   "ratio": 1.218325868821551
  },
  "busy": {
   "passes": [
    0.9830874321782946,
    1.0805494754965062,
    0.8368754430018319
   ],
   "ratio": 0.9830874321782946
  }
 },
 "specscore": 1.2724640288062634,
 "greedy_agreement": 0.4601225407286068,
 "likelihood": {
  "gap": -0.022268614296407918,
  "se": 0.02887142023606424,
  "candidate": -0.4984058281978848,
  "stock": -0.4761372139014769
 },
 "fidelity": 0.011955906862795603,
 "lengths": {
  "solo": {
   "ratio": 0.7880888471867672,
   "low": 0.5143668445167442,
   "high": 1.0618108498567902
  },
  "team": {
   "ratio": 0.9929615154156227,
   "low": 0.7285915976402043,
   "high": 1.257331433191041
  },
  "busy": {
   "ratio": 0.919122380141161,
   "low": 0.6863926636030365,
   "high": 1.1518520966792856
  }
 },
 "memory": {
  "ok": true,
  "peak_mib": 165416.0,
  "allowed_mib": 169119.1
 },
 "acceptance": {
  "solo": 3.085219256165698,
  "team": 3.120080230093854,
  "busy": 3.1715901098306554
 },
 "limits": {
  "greedy_agreement_floor": null,
  "likelihood_bound": 0.05,
  "fidelity_ceiling": 0.02,
  "length_margin": 0.05,
  "memory_slack_mib": 4096
 },
 "reason": null,
 "score": 1.2724640288062634
}