AI21 Labs
AI21 Labs, founded in 2017 in Tel Aviv, Israel, provides developers with customized text-based business applications powered by AI21 proprietary AI models.
Position in SVTR
Snapshot 2026-11-04- Startup SignalsRankedof 2,318↓67
- Foundation ModelsRankedof 39–
- Text / NLPRankedof 13–
About
AI21 Labs, founded in 2017 in Tel Aviv, Israel, provides developers with customized text-based business applications powered by AI21 proprietary AI models. Main products include Wordtune (a Chrome extension for improving writing) and the LLM API AI21 Studio.
Full tier & rationale — an SVTR Intelligence benefit
Capital graph
Company· 12
Investor· 9
Founders / team· 1
Funding history
- 2025-05Series D+$300M
Investors · Google, NVIDIASource · SVTR Weekly #105 ↗
- 2023-12Series C$53M
Investors · Intel Capital, Comcast VenturesSource · SVTR Weekly #029 ↗
- 2023-09Series C$155M
Investors · Walden Catalyst Ventures, Google, Pitango, SCB10X, b2venture, Samsung Next, NVIDIASource · SVTR Weekly #017 ↗
Comparable companies· by market
This company
BusinessLatest roundTotal raisedDate- AI21 Labs
Provides developers with customized text-based business applications built on AI21's proprietary AI models
Series D+ · $508M · 2025-05
$508M
United States
BusinessLatest roundTotal raisedDate- Black Forest Labs
Building the FLUX family of foundation models for image generation and editing
Series B · $331M · 2025-12
$331M - World Labs
Achieves "spatial intelligence" in AI by developing human-like visual data processing technology
Undisclosed · $1.3B · 2026-02
$1.3B - Writer
Develops large language models and software that make it easier for companies to build AI applications
Undisclosed · $450M · 2024-11
$450M
China
BusinessLatest roundTotal raisedDate- Baichuan
Generative AI and large language models
Series A · $700M · 2024-07
$700M - ModelBest
Development and commercialization of on-device large models
Series C · $219M · 2026-07 · Valuation $2.8B
$219MValuation $2.8B - DeepSeek
Open-source large language model development and API/agent services
Series A · $7.2B · 2026-06 · Valuation $56B
$7.2BValuation $56B
Europe
BusinessLatest roundTotal raisedDate- H
Computer-use AI agent platform for large European enterprises.
Seed · $220M · 2024-05
$220M - Aleph Alpha
Develops AI large language models based on European data
Undisclosed · $500M · 2024-09
$500M - Mistral AI
Develops open-weight large language models and provides supporting compute infrastructure…
Series D+ · 2026-09 · Valuation $24B
—Valuation $24B
Other / unspecified
BusinessLatest roundTotal raisedDate- Advanced Machine Intelligence Labs
Builds world-model AI systems that enable machines to understand the physical world
Seed · $1.0B · 2026-03 · Valuation $3.5B
$1.0BValuation $3.5B - Sarvam AI
Builds large language models that support Indian languages
Series B · $275M · 2026-06 · Valuation $1.5B
$275MValuation $1.5B - Sakana AI
Biologically inspired, efficient AI systems and models (including methods such as "model merging")
Series B · $265M · 2025-11
$265M
Confirmed rounds only. Matched on subsector, sector, stage and funding scale — each verifiable on the company profiles.
Investors that may fit
Andreessen Horowitz
5 Foundation Models deals in the last 24 months · 2 at a nearby stage
Request intro →Salesforce Ventures
4 Foundation Models deals in the last 24 months · 1 at a nearby stage
Request intro →Ranked by each firm’s deals in this sector over the last 24 months, weighted by nearby stage and shared geography. Indicative only — no rating judgment.