pith:PST5I4D4
LongCat-Image Technical Report
LongCat-Image achieves state-of-the-art Chinese text rendering in images using a compact 6B-parameter diffusion model.
arxiv:2512.07584 v1 · 2025-12-08 · cs.CV
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\pithnumber{PST5I4D4GWZ3WMI4DFF7Q2JBJL}
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Claims
With a core diffusion model of only 6B parameters, LongCat-Image sets a new industry standard for Chinese character rendering, outperforming both major open-source and commercial solutions in coverage and accuracy while delivering superior text-rendering capabilities and remarkable photorealism.
The assumption that the curated data and reward models used in RL produce generalizable gains rather than benchmark-specific improvements, with no external independent verification of the SOTA claims provided in the abstract.
LongCat-Image delivers a compact 6B-parameter bilingual image generation model that sets new standards for Chinese character rendering accuracy and photorealism while remaining efficient and fully open-source.
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| First computed | 2026-05-17T23:38:48.571583Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
7ca7d4707c35b3bb311c194bf869214ac510d55e742a7aa7acc0b9a76bf5c05d
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/PST5I4D4GWZ3WMI4DFF7Q2JBJL \
| 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: 7ca7d4707c35b3bb311c194bf869214ac510d55e742a7aa7acc0b9a76bf5c05d
Canonical record JSON
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