OpenNMT / OpenNMT/CTranslate2

Output tokens logits

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Description

Hello,

Unless I'm mistaken, I don't see any option in the translator translate_batch or generate_tokens functions to output the logits/probabilities of the generated tokens. However, this computation must be done internally before sampling the tokens, right ?

This would be very useful in order to have more control over the generation, for example for influencing the choice of specific tokens. Is there a particular reason why this is not exposed ? Could this be easily added, or am I missing something? This could for example take the form of a return_logits argument to the mentioned functions.

Thanks,
Simon

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Research direction

Start by tracing the translator's translate_batch and generate_tokens entry points to understand where generated-token logits or probabilities are available before sampling. Define the return format and behavior for an opt-in return_logits argument, then verify that the API exposes the requested values without changing default generation behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
backend-api-design, machine-learning
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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