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Funding

Announcing Our $800M Series C to Accelerate the Shift to Open-source AI

40s ReadRAISED:$800M

AI Executive Summary

Together AI secured $800M in Series C funding to accelerate the shift to open-source AI, addressing the economic challenges of closed frontier LLM and enabling companies to deploy custom AI agent at scale.

Why It Matters

⚡ Structural Impact

Crucially, this shifts the paradigm from expensive, closed AI model to open-source, custom AI solutions, empowering companies to deploy AI agent without incurring unsustainable inference costs.

Multi-Vector Implications

  • TECHNICALSpecifically when deploying large-scale AI applications, Together AI's open-source platform ensures efficient inference and reduced costs, only if companies adopt custom AI model and continuous innovation.
  • MARKETAs companies transition to open-source AI, Together AI's platform will capture a significant share of the growing market for custom AI solutions, only if they can deliver the best economics at scale.
  • GOVERNANCEThe partnership with Y Combinator and NVIDIA will drive the development of open-source AI standards and best practices, specifically when addressing the IP and compliance challenges associated with custom AI model.

Strategic Outlook

🔭 12-18M Horizon

Near-term trajectory suggests Together AI will continue to expand its customer base and deploy its open-source platform across various industries, over the next 12 months.

Referenced Coverage & Sources

Full Story Intelligence

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Announcing our $800M Series C to accelerate the shift to open-source AI
Together AI BlogJul 1, 2026
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Startup TermFunding

Series C

Series C funding is raised by highly successful, late-stage startups to accelerate scaling, fund acquisitions, or prepare for an exit (IPO/acquisition).

AI ConceptAgentic Systems

Agentic AI

Agentic AI refers to artificial intelligence systems designed to act autonomously, make decisions, plan workflows, and execute tasks without constant human intervention. Unlike traditional models that only respond to queries, agentic systems use an agentic loop to perceive environments, reason over goals, use tools, and iterate to achieve outcomes.

Frequently Asked Questions & Summary Briefing
We raised $800M to accelerate the shift to open-source AI. Here's why the economics of closed models don't scale, and what we're building next. Reported by Together AI Blog, this update represents a key development in the Startup Venture Capital Funding category.
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Announcing Our $800M Series C to Accelerate the Shift to Open-source AI | AI Timeline | SPIDITS AI