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Inconsistent Session Token Count #1937
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I noticed this issue while working on the footer token counter, but this happens on opencode official releases as well.
After discussing the issue on discord, several users saw a similar behavior.
While some could NOT reproduce it over dozens of tries, others witnessed it at close to a 50% rate.
This issue was seen on multiple providers and models so far:
github-copilot/gpt-4.1openai/gpt-4.1google/gemini-2.5-pro
It isn't clear whether opencode sends system prompt etc in duplicate or if the token count mechanism suffers from a counting error.
This is issue likely hits every models and providers, for some users? Could lead to preemptive auto /compact in a session and probably other shenanigans?
I also been seeing session token count regress at times for no apparent reason 🤦♂️
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github-actions commentedon Aug 14, 2025
This issue might be a duplicate of existing issues. Please check:
Feel free to ignore if none of these address your specific case of token counts jumping unexpectedly or regressing during sessions.
rekram1-node commentedon Sep 14, 2025
will be fixed in next release
rekram1-node commentedon Sep 15, 2025
nvm this solution sucked
rekram1-node commentedon Sep 15, 2025
this is just the input + cached tokens double counting
spoons-and-mirrors commentedon Sep 26, 2025
this PR seems to fix it:
#2653