Blog

OpenThinker is a decensored reasoning model

Scaling up Open Reasoning with OpenThinker-32B

Powerful reasoning models can be trained by scaling data, verifying reasoning traces, and scaling model size. Releasing OpenThinker-32B, a state-of-the-art open-data reasoning model

Measuring Reasoning with Evalchemy

If you can't measure it, you can't improve it. Releasing reasoning benchmarks into our model evaluation tool Evalchemy

Launching the Open Thoughts Project

Open Thoughts, an open-source effort to curate the best open reasoning datasets

Cut Token Costs in Half: Batch Processing Made Easy with Curator

Bespoke-Stratos: The unreasonable effectiveness of reasoning distillation

We trained Bespoke-Stratos-32B, our reasoning model distilled from DeepSeek-R1 and using Berkeley NovaSky’s Sky-T1 data pipeline. The model outperforms Sky-T1 and o1-preview in reasoning (Math and Code) benchmarks, and almost reaches the performance of DeepSeek-R1-Distill-Qwen-32B while being trained on 47x fewer examples.

Hallucinations, Fact checking, Entailment and all that. What does it all mean?

AI hallucinations can derail accuracy, but Bespoke's latest factuality model is designed to combat that. Learn how advanced checks are helping models deliver more reliable outputs, reducing common errors in data generation.