deepseek-r1 not working with Ollama format correctly

[alyahmedaly]

Checked other resources

• I added a very descriptive title to this issue.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

No Code needed

Error Message and Stack Trace (if applicable)

There is no exception

Description

I was trying deepseek-r1:14b today with ollama format:Json schema

looks like the integration need to be update as this kind of model when you ask question it start with thinking section before it start answering

so I was getting wrong output mainly the output was part of the thinking process

same code works with Phi4 and llamaa 3.2

System Info

I'm using the js version of langchain