token count is incorrect in vision mode

[yuxizhe]

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Dify version

0.7.0

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

When dealing with vision tasks, dify reports significantly fewer token consumptions than actually used. use OpenAI 4o-mini model

In OpenAI 4o-mini , image processing consumes at least 2833 tokens.

✔️ Expected Behavior

Display the correct token consumption.

❌ Actual Behavior

token count is incorrect in vision mode, too low