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Fix usage & billing for custom model aliases and cached/reasoning tokens #4222

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Merged
rekram1-node merged 4 commits into from
Nov 12, 2025
Merged

Fix usage & billing for custom model aliases and cached/reasoning tokens #4222

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7c1c1e6
Ensure accurate usage & billing for custom model aliases and cached/r…
melihmucuk Nov 11, 2025
7ee0de1
Merge branch 'dev' into fix/usage-cost-models
melihmucuk Nov 12, 2025
2c616e4
revert
rekram1-node Nov 12, 2025
c1b19bf
fix conflict
rekram1-node Nov 12, 2025
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3 changes: 3 additions & 0 deletions packages/opencode/src/session/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -402,6 +402,9 @@ export namespace Session {
.add(new Decimal(tokens.output).mul(input.model.cost?.output ?? 0).div(1_000_000))
.add(new Decimal(tokens.cache.read).mul(input.model.cost?.cache_read ?? 0).div(1_000_000))
.add(new Decimal(tokens.cache.write).mul(input.model.cost?.cache_write ?? 0).div(1_000_000))
// TODO: update models.dev to have better pricing model, for now:
// charge reasoning tokens at the same rate as output tokens
.add(new Decimal(tokens.reasoning).mul(input.model.cost?.output ?? 0).div(1_000_000))
.toNumber(),
tokens,
}
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