NTT tsuzumi vs ELYZA
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
NTT tsuzumi
Japan's sovereign lightweight LLM — enterprise-grade Japanese AI on a...
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ELYZA
Japan's Japanese-first LLM — from U Tokyo's Matsuo Lab, backed by KDDI
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| RECATOOLS Score | 7.2 / 10 | 7.4 / 10 |
| Capability | ||
| Value for money | ||
| Ease of use | ||
| ASEAN readiness | ||
| API quality | ||
| Pricing | Enterprise | Enterprise |
| Free tier | None — enterprise and government contracts only; no public free tier | Free demo ended May 2026; open-weight models freely downloadable on Hugging Face |
| Paid from | Contact NTT / NTT DATA (negotiated B2B); pay-as-you-go via Azure MaaS (token-based) | Enterprise contract only — no public pricing; contact sales via elyza.ai |
| Has API | ✓ | ✓ |
| Open source | ✗ | ✗ |
| Free to use | ✗ | ✗ |
| Users | Not disclosed | ~110K users in 11 days at ELYZA Pencil launch (2022); enterprise B2B focus since |
| Founded | 1952 | 2018 |
| Maker | Nippon Telegraph and Telephone Corporation (NTT) | KDDI Corporation |
| Verdict | NTT tsuzumi 2 is a credible sovereign-AI play, not just a brand exercise. The single-H100 inference claim checks out across multiple independent reports, and being tapped for Japan's Digital Agency "Gennai" trial — rolli... |
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... |
| Full review → | Full review → |
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.