What does Osmosis do?
Reinforcement fine-tuning platform (YC W25) that helps companies build task-specific AI models that outperform foundation models at a fraction of the cost, applying GRPO-style post-training without managing infrastructure.
Osmosis jobs, careers, and hiring context
Explore Osmosis careers and hiring status. Find jobs at Osmosis and official application links when roles are open. Funding stage: Seed. Headcount: 1-10. Reinforcement fine-tuning platform (YC W25) that helps companies build task-specific AI models that outperform foundation models at a fraction of the cost, applying GRPO-style post-training without managing infrastructure.
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Open roles
0
Funding stage
Seed
Total funding
$6.8M
Key facts
Osmosis is a Seed stage AI startup, founded in 2024, with $6.8M in total disclosed funding. Its most recent round was a $6.3M Seed in Oct 2025. It has no open roles listed at the moment; new Osmosis openings are tracked daily. Source: Fast AI Jobs company dataset, updated Aug 2026.
Related topic tags
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Company profile last updated on Jun 25, 2026.