Together AI
Company
AI Cloud
Open-model inference cloud and research shop (FlashAttention lineage).
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Together serves and fine-tunes open-weights models at scale and contributes serious systems research — its co-founder Tri Dao created FlashAttention, the kernel that speeds attention on every modern GPU. Valued at $3.3B in early 2025.
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Record reviewed as of 2026-01-15 — see Methodology.