Added Esper 3.1

README.md

@@ -17,6 +17,13 @@ At Valiant Labs, we build frontier intelligence and release it open source.
 For everyone to use.
 
 
+**[Esper 3.1](https://huggingface.co/collections/ValiantLabs/esper-31-68f839ab0e5f52518ebed7ea) is finetuned on high-difficulty coding, architecture, DevOps, and MLOps:**
+
+[ValiantLabs/Qwen3-4B-Thinking-2507-Esper3.1](https://huggingface.co/ValiantLabs/Qwen3-4B-Thinking-2507-Esper3.1)
+
+[ValiantLabs/gpt-oss-20b-Esper3.1](https://huggingface.co/ValiantLabs/gpt-oss-20b-Esper3.1)
+
+
 **[Shining Valiant 3](https://huggingface.co/collections/ValiantLabs/shining-valiant-3-68744fac0a5c018512bc21e6) is finetuned on high-difficulty science-reasoning, LLMOps and AI architecture, and general reasoning:**
 
 [ValiantLabs/Qwen3-1.7B-ShiningValiant3](https://huggingface.co/ValiantLabs/Qwen3-1.7B-ShiningValiant3)