VibeThinker-1.5B by Sina Weibo
1.5B language model with strong reasoning at tiny cost
3 followers
1.5B language model with strong reasoning at tiny cost
3 followers
VibeThinker-1.5B is a 1.5B-parameter dense language model trained for only $7,800. It delivers reasoning performance comparable to much larger models (e.g., GPT OSS-20B Medium) while staying small, efficient, and easy to run—ideal for research, startups, and edge deployment.
Free
Launch Team
ArticosTest your messaging on your audience, right inside Claude or ChatGPT
Promoted
What shocked me is that it’s a dense 1.5B-parameter model trained for just $7.8K that delivers reasoning performance comparable to much larger models (e.g., GPT OSS‑20B Medium). That’s huge for teams who need strong reasoning but can’t afford massive training or inference costs.