Pith Number

pith:6DCA44FP

pith:2026:6DCA44FPVFUBC6FXYOEQ7VTNAG

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Sentinel-VLA: A Metacognitive VLA Model with Active Status Monitoring for Dynamic Reasoning and Error Recovery

Chang Xu, Dan Niu, Hongyan Xu, Lei Fan, Shan You, Wenhao Li, Xiu Su, Yichao Cao, Zhe Qu

Sentinel-VLA equips VLA models with an active sentinel module that monitors execution status and triggers reasoning or error recovery only when needed, delivering over 30% higher real-world task success.

arxiv:2605.01191 v2 · 2026-05-02 · cs.RO

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\pithnumber{6DCA44FPVFUBC6FXYOEQ7VTNAG}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Real-world experiments demonstrate that Sentinel-VLA boosts the task success rate by over 30% compared to the SOTA model, PI0.

C2weakest assumption

The automatically generated and annotated training data (44 tasks, 2.6 million transitions) faithfully captures the distribution of real-world execution errors and recovery opportunities without introducing systematic biases from the generation pipeline.

C3one line summary

Sentinel-VLA introduces a metacognitive VLA model with a sentinel module for real-time status monitoring, dynamic reasoning, and error recovery, plus a self-evolving continual learning method, raising real-world task success by over 30% versus prior SOTA.

Receipt and verification

First computed	2026-05-29T01:05:11.315809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0c40e70afa9681178b7c3890fd66d01ac4cd8eb12d4542d1f543afcf0fb8e02

Aliases

arxiv: 2605.01191 · arxiv_version: 2605.01191v2 · doi: 10.48550/arxiv.2605.01191 · pith_short_12: 6DCA44FPVFUB · pith_short_16: 6DCA44FPVFUBC6FX · pith_short_8: 6DCA44FP

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6DCA44FPVFUBC6FXYOEQ7VTNAG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f0c40e70afa9681178b7c3890fd66d01ac4cd8eb12d4542d1f543afcf0fb8e02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0efcfba74b06b747be52485ac361fe2527b9269ea950566db570c7336362b3f2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-05-02T02:10:54Z",
    "title_canon_sha256": "8dbbaec74e1c659633ceede8e22729f7a828df229c7a9029cdecedad2d83a93a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.01191",
    "kind": "arxiv",
    "version": 2
  }
}