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e014b341c8
LITELLM_ENABLE_PTU_COST_ATTRIBUTION, read through get_secret_bool and defaulting to
false, makes the whole PTU flat-cost feature inert unless an operator opts in. The
daily rollup cron is not registered at all, so no sentinel row is ever written;
/model/new and /model/{id}/update reject a request that carries any PTU model_info
field with a 400 naming the fields and the env var rather than dropping them; the
daily activity read path reports zero flat cost; and the model add and edit forms
hide the four PTU inputs.
The read gate lives where flat cost enters SpendMetrics rather than in the aggregated
SQL select. /team/daily/activity, the endpoint the Usage page reads, is served by the
paginated find_many path and never runs that query, so forcing the select to a
constant zero would have left the reporting surface that matters still showing flat
cost.
Sentinel row filtering is deliberately not gated. An operator can enable the flag,
accrue rows under the __ptu_flat_cost__ api_key, then disable it, and those rows stay
in LiteLLM_DailyTeamSpend; gating the filter too would surface the sentinel as a bogus
api_key and mint a provider bucket for its empty provider. Response fields keep their
shape and report 0.0, so typed clients are unaffected, and the migration and the
ModelInfo field declarations are untouched.
The write gate reads the incoming request rather than the merged deployment, so a
model configured during an earlier opt-in stays editable, and the edit form drops the
PTU keys from the payload instead of sending nulls that would clear stored config.
The dashboard reads the flag from a read-only enable_ptu_cost_attribution key on
/get/ui_settings, computed from the environment on every read. It is deliberately not
an allowlisted persisted setting, and PATCH /update/ui_settings rejects it with a 400,
so an admin cannot flip an env-gated feature from the UI.
Two review findings on the gate itself. The PTU clear loop now runs only when the
feature is enabled: the write gate rejects a value but lets an explicit null through,
and a client round-tripping a model_info blob sends the PTU keys as nulls, so a
disabled proxy would have quietly erased a billing configuration set up during an
earlier opt-in. Disabling pauses PTU rather than discarding its setup. And the
dashboard flag is re-read every thirty seconds instead of the hour the other UI settings
use, since those are persisted records while this one tracks the proxy process; a
restart that flips the variable would otherwise leave the model form offering inputs
the backend now rejects. The flag is polled rather than only marked stale, since a form
that stays mounted and focused never refetches on its own.
The read gate checks the row before the flag. It runs once per metric accumulation and a
record fans out across roughly a dozen breakdowns, while the flag reads through the secret
manager uncached, so consulting it for every accumulation put thousands of lookups on a
shared endpoint that made none before. Only a row actually carrying flat cost reaches it.
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|---|---|---|
| .. | ||
| management_v1 | ||
| policy_endpoints | ||
| scim | ||
| search_endpoints | ||
| usage_endpoints | ||
| test_access_group_endpoints.py | ||
| test_access_group_management.py | ||
| test_activity_tenant_scoping.py | ||
| test_auto_router_endpoints.py | ||
| test_budget_endpoints.py | ||
| test_cache_settings_endpoints.py | ||
| test_callback_management_endpoints.py | ||
| test_common_daily_activity.py | ||
| test_common_utils.py | ||
| test_compliance_endpoints.py | ||
| test_config_override_endpoints.py | ||
| test_coordination_redis_endpoints.py | ||
| test_cost_tracking_settings.py | ||
| test_credential_migration.py | ||
| test_customer_budget.py | ||
| test_customer_endpoints.py | ||
| test_delete_callbacks_endpoint.py | ||
| test_delete_verification_tokens_failed.py | ||
| test_encryption_endpoints.py | ||
| test_entraid_app_roles.py | ||
| test_gateway_request_endpoints.py | ||
| test_internal_user_endpoints.py | ||
| test_key_management_endpoints.py | ||
| test_mcp_management_endpoints.py | ||
| test_model_management_endpoints.py | ||
| test_org_admin_team_access.py | ||
| test_organization_endpoints.py | ||
| test_policy_endpoints.py | ||
| test_project_org_authz.py | ||
| test_ptu_model_settings.py | ||
| test_router_settings_endpoints.py | ||
| test_saml_sso.py | ||
| test_tag_management_endpoints.py | ||
| test_team_callback_endpoints.py | ||
| test_team_default_params.py | ||
| test_team_endpoints.py | ||
| test_team_model_alias_merge.py | ||
| test_tool_management_endpoints.py | ||
| test_ui_sso.py | ||
| test_workflow_management_endpoints.py | ||