_count_image_tokens() — langchain Function Reference

Architecture documentation for the _count_image_tokens() function in base.py from the langchain codebase.

Function python LangChainCore LanguageModelBase calls 1 called by 1

Entity Profile

LangChainCore→ LanguageModelBase→ _count_image_tokens() — langchain Function Reference

Dependency Diagram

graph TD
  7cf4873b_bc13_276a_ae3d_52fa0c9a42ef["_count_image_tokens()"]
  2b046911_ea21_8e2e_ba0d_9d03da8d7bda["base.py"]
  7cf4873b_bc13_276a_ae3d_52fa0c9a42ef -->|defined in| 2b046911_ea21_8e2e_ba0d_9d03da8d7bda
  3d7b9c9e_fae0_940a_5e96_75a84e2ad11c["get_num_tokens_from_messages()"]
  3d7b9c9e_fae0_940a_5e96_75a84e2ad11c -->|calls| 7cf4873b_bc13_276a_ae3d_52fa0c9a42ef
  d9f589e8_b1c5_45d1_92a1_362c97de0d6e["_resize()"]
  7cf4873b_bc13_276a_ae3d_52fa0c9a42ef -->|calls| d9f589e8_b1c5_45d1_92a1_362c97de0d6e
  style 7cf4873b_bc13_276a_ae3d_52fa0c9a42ef fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/openai/langchain_openai/chat_models/base.py lines 3600–3605

def _count_image_tokens(width: int, height: int) -> int:
    # Reference: https://platform.openai.com/docs/guides/vision/calculating-costs
    width, height = _resize(width, height)
    h = ceil(height / 512)
    w = ceil(width / 512)
    return (170 * h * w) + 85