Stockmark vs ELYZA vs PLaMo (Preferred Networks) vs KARAKURI (カラクリ)
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
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ELYZA
Japan's Japanese-first LLM — from U Tokyo's Matsuo Lab, backed by KDDI
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PLaMo (Preferred Networks)
PFN's from-scratch Japanese LLM, now in Japan's government AI stack
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| RECATOOLS Score | 6.4 / 10 | 7.4 / 10 | 6.8 / 10 | 6 / 10 |
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| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Enterprise | Enterprise | Freemium | Enterprise |
| Free tier | — | Free demo ended May 2026; open-weight models freely downloadable on Hugging Face | — | — |
| Paid from | — | Enterprise contract only — no public pricing; contact sales via elyza.ai | — | — |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✗ | ✗ | ✗ | ✓ |
| Free to use | ✗ | ✗ | ✓ | ✗ |
| Users | — | ~110K users in 11 days at ELYZA Pencil launch (2022); enterprise B2B focus since | — | — |
| Founded | — | 2018 | — | — |
| Maker | — | KDDI Corporation | — | — |
| Verdict | Stockmark is a legitimate enterprise AI vendor rather than a chatbot wrapper: its Stockmark-2-100B family is trained from scratch specifically to suppress hallucination on dense Japanese business documents, and adoption... |
ELYZA has the cleanest academic-to-enterprise pipeline among Japan's domestic LLM shops: University of Tokyo Matsuo Lab research, a 2024 KDDI majority buy-in (53.4% combined stake), and production deployments that aren't... |
PLaMo is one of the few Japanese LLM efforts built genuinely from scratch rather than fine-tuned on a Western base, and it's now backed by government validation: the Digital Agency rolled PLaMo Translate into its interna... |
KARAKURI has quietly become one of the more technically ambitious customer-support AI vendors in Japan. Its chatbot ships with a 95% answer-accuracy guarantee and holds a 4.3/5 rating across 43 ITreview submissions — rea... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.