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IB-WP-0019-T03: rate-table cost computation

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Ship a starter model rate table at src/infospace_bench/model_rates.yaml
(prompt_per_1k / completion_per_1k for the OpenRouter models we have
actually touched: gpt-4o, gpt-4o-mini, gpt-4-turbo, claude 3.5 sonnet
and haiku, claude 3 opus, gemini 1.5 flash/pro, llama 3.1 70b) and a
load_rate_table() / estimate_cost_usd() pair that overlays an optional
<workspace>/model-rates.yaml on top of the bundled defaults.

generate run now passes a workspace-aware cost_resolver into
record_run_usage, so cost_usd_estimated lands on every usage bucket
whose model matches the table. Adapter-returned cost still wins
(cost_status="known"); rate-table cost is reported under
cost_status="estimated"; unmatched models are recorded as
cost_status="unknown" rather than silently zeroed. Rate-table file is
listed in pyproject.toml package-data so pip-installed users keep the
defaults.

106 tests pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Bernd Worsch
2026-05-17 19:54:30 +02:00
parent 678508226a
commit a4dde53fc3
7 changed files with 252 additions and 3 deletions
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workplans/IB-WP-0019-budget-and-usage-registry.md
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@@ -117,7 +117,7 @@ state_hub_task_id: "a612f8d4-f96d-4fae-9aa6-66a7946414f5"
```task
id: IB-WP-0019-T03
status: todo
status: done
priority: high
state_hub_task_id: "688c590d-8885-455e-bcf6-61409a45e001"
```