Pith Number

pith:VRNYWBAP

pith:2026:VRNYWBAP4OGGSTHSNUUWSTB2UH

not attested not anchored not stored refs pending

Vero: An Open RL Recipe for General Visual Reasoning

Danqi Chen, Gabriel Sarch, Haoyang Wu, Linrong Cai, Qunzhong Wang, Zhuang Liu

Open reinforcement learning with broad visual data builds general reasoners that rival closed models.

arxiv:2604.04917 v3 · 2026-04-06 · cs.CV · cs.AI · cs.CL

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\usepackage{pith}
\pithnumber{VRNYWBAP4OGGSTHSNUUWSTB2UH}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

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

Vero achieves state-of-the-art performance, improving over four base models by 3.6-5.3 points on average across VeroEval, our suite of 30 challenging benchmarks. Starting from Qwen3-VL-8B-Instruct, Vero outperforms Qwen3-VL-8B-Thinking on 23 of 30 benchmarks without additional proprietary thinking data.

C2weakest assumption

That the observed gains are primarily driven by broad data coverage and task-routed rewards rather than other unstated factors such as training hyperparameters, base model choice, or evaluation contamination; the abstract provides no controls or ablations to isolate these effects.

C3one line summary

Vero is an open VLM family trained via RL on Vero-600K (600K samples from 59 datasets across six categories) with task-routed rewards, achieving SOTA gains of 3.6-5.3 points on 30 visual reasoning benchmarks.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-19T16:12:53.850107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac5b8b040fe38c694cf26d29694c3aa1c040180d3d5e4a74933df1554b7f149f

Aliases

arxiv: 2604.04917 · arxiv_version: 2604.04917v3 · doi: 10.48550/arxiv.2604.04917 · pith_short_12: VRNYWBAP4OGG · pith_short_16: VRNYWBAP4OGGSTHS · pith_short_8: VRNYWBAP

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VRNYWBAP4OGGSTHSNUUWSTB2UH \
  | 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: ac5b8b040fe38c694cf26d29694c3aa1c040180d3d5e4a74933df1554b7f149f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02f3aeeaf574c5c19b0719a3eda8ffe161688a6249952d286b9a3b739270eeeb",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-04-06T17:56:25Z",
    "title_canon_sha256": "b239fcf64cf625c6e1202214cd9c444a5428698b2729a6af594559fb0672bc09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.04917",
    "kind": "arxiv",
    "version": 3
  }
}