# Arcee AI

> U.S. open-weight foundation models (Trinity) plus tools to customize and deploy them.

## Why it is interesting

On Sep 16, 2026 Arcee announced a Series B valuing it above $1B after claiming its entire 2025 Trinity lineup — including a 400B MoE model — was built for about $20M; Fortune reported the raise was at least $150M at $1B pre-money.

## Profile

- **Latest funding:** Series B — $150M+ (Fortune; company n/d) (September 2026)
- **Latest known valuation:** >$1B (company); $1B pre (Fortune) (September 2026)
- **Total disclosed equity funding:** Not publicly disclosed
- **Stage:** growth
- **Status:** private
- **Industries:** N/A
- **Coverage:** full
- **Last updated:** 2026-09-17
- **Latest funding investors:** Vista Equity Partners, Cambium Capital, Emergence Capital, M12

## Key facts

- Series B at >$1B valuation (Sep 16, 2026) — company; Fortune ≥$150M / $1B pre
- Vista Equity, Cambium Capital, Emergence Capital co-led
- ~$20M claimed cost for 2025 Trinity lineup including Trinity Large 400B MoE

## Funding history

- Series B · $150M+ (Fortune; company n/d) · September 2026
  Source: Https://www.arcee.ai/blog/arcee-ai-raises-series-b-to-build-the-future-of-american-open-models

## Related articles

- https://venturecapitaltracker.com/2026-arcee-ai-150m-series-b-1b-vista-open-weight
- https://venturecapitaltracker.com/2026-september-16-17-investment-news-arcee-hang-ten-backops

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** September 17, 2026

**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.

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Source: https://venturecapitaltracker.com/startup/arcee-ai