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AI21 Labs funding, valuation and investors
Enterprise AI model developer behind the Jamba hybrid state-space and transformer family.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series C (including $155M August 2023 initial close and $53M extension)
$208M total for entire Series C; do not add $155M separately · November 21, 2023
Latest known valuation
$1.4B (November 2023 valuation)
Series C (including $155M August 2023 initial close and $53M extension) · November 21, 2023
Total disclosed equity funding
$208M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
growth · Tel Aviv, Israel
Investors in latest funding
Other: Walden Catalyst , Pitango , SCB10X , b2venture , Samsung Next , Google , NVIDIA , Intel Capital , Comcast Ventures , Ahren Innovation Capital
Overview
AI21 Labs, founded in Israel in 2017 by Amnon Shashua, Yoav Shoham and Ori Goshen, develops enterprise AI systems and the Jamba family of hybrid state-space/Transformer models. It announced $155M in Series C funding in August 2023 and a $53M extension in November, bringing total Series C proceeds to $208M and company funding to $336M. CTech reported on January 1, 2026 that a widely cited $300M Series D from 2025 was not completed. Accordingly VCT does not count it as a closed investment.
Why AI21 Labs is interesting
An established builder of hybrid SSM-transformer models. Important data correction: its $208M Series C includes the earlier $155M close; the widely reported $300M Series D in 2025 never closed.
Product & use cases
Jamba2 hybrid SSM-transformer foundation models and enterprise AI workflows; focus on reliable, grounded answers and agent tasks.
- Enterprise Q&A and grounded document reasoning
- Memory-efficient hybrid model deployment
- Task-specialized AI agents and enterprise workflows
Key facts
- $155M initial Series C announced August 2023; extended by $53M to $208M total in November
- Company's latest independently verified completed financing is November 2023 Series C extension
- 2025 reported $300M Series D never closed, per CTech in January 2026
- Jamba2 uses a hybrid SSM-transformer model architecture
Funding history (newest first)
Series C (including $155M August 2023 initial close and $53M extension)
2023-11-21 $208M total for entire Series C; do not add $155M separately Valuation: $1.4B (November 2023 valuation)- Walden Catalyst (participant)
- Pitango (participant)
- SCB10X (participant)
- b2venture (participant)
- Samsung Next (participant)
- Google (participant)
- NVIDIA (participant)
- Intel Capital (participant)
- Comcast Ventures (participant)
- Ahren Innovation Capital (participant)
Source: Read source · ai21.com
Competitive landscape
Edge: Practical enterprise deployment experience with state-space and transformer hybrid modeling; separate from diffusion and NCM techniques.
The $300M 2025 Series D had been reported but never closed, per January 2026 Israeli financial reporting. Some commercial and acquisition rumors remain unconfirmed. Its $1.4B valuation is the 2023 mark, not a verified current 2026 valuation.
Market / IPO context
Editorial / static context — not a live quote.
FAQs about AI21 Labs
Practical answers founders, operators, and investors typically search for.
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Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.