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create_agent() fails with Cohere models when using response_format (hardcoded tool_choice="any")

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#161 In langchain-ai/langchain-cohere;

· OJ Adeyemi (ojadeyemi) opened on Nov 5, 2025

bind_tools drops JSON Schema constraints for Cohere tools (enum/Literal, constr/pattern, Field attrs), and loses nested model structure

Status: Open.

#157 In langchain-ai/langchain-cohere;

· ssmtkmt opened on Oct 25, 2025

LLMResult.llm_output is None in BaseCallbackHandler.on_llm_end

Status: Open.

#151 In langchain-ai/langchain-cohere;

· ai-learner-00 opened on Sep 22, 2025

Replace deprecated ChatResponse with V2ChatResponse in langchain_cohere for SDK compatibility

Status: Open.

#146 In langchain-ai/langchain-cohere;

· Henning Kubatzsch (Henning-Kubatzsch) opened on Aug 5, 2025

Can't create a supervisor agent with cohere models AttributeError: 'CohereTool' object has no attribute 'get'

Status: Open.

#135 In langchain-ai/langchain-cohere;

· Neelesh K Shukla (neeleshkshukla) opened on Apr 8, 2025

Langchain Cohere embeddings says "invalid type: parameter texts is of type object but should be of type string" inspite of receiving strings

Status: Open.

#130 In langchain-ai/langchain-cohere;

· Akshitha Rao (AkshithaRao123) opened on Jan 26, 2025

How to use aws bedrock Cohere Rerank

Status: Open.

#118 In langchain-ai/langchain-cohere;

· MutharasanE opened on Jan 9, 2025

[UnprocessableEntityError]: status_code: 422, body: data=None message='No valid tool call or response generated'

Status: Open.

#105 In langchain-ai/langchain-cohere;

· 1337 (Zephyruss1) opened on Nov 3, 2024

The usage shown in the source code and docs is invalid and the completion_with_retry have argument bug in llms.py (tested 0.14)

Status: Open.

#44 In langchain-ai/langchain-cohere;

· 石林行者 (simongcc) opened on May 6, 2024

Pydantic basemodel with enum field not supported with_structured_output

Status: Open.

#9 In langchain-ai/langchain-cohere;

· gopinathan-av opened on Apr 9, 2024