Strip believed-free models from pricing block to prevent cost attribution#108
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…e run Some providers (Cloudflare being the clearest case) have a non-zero per-token price in the LiteLLM cost map because they publish a paid-tier rate, even though their free plan is quota-limited rather than zero-priced. _merge_pricing() was writing those LiteLLM-sourced prices into the pricing block on every run, causing compute_cost() to attribute a cost to every free-tier request — which eventually lands the model in cost_observed_free_tier and silently breaks free routing. Fix: after merging the LiteLLM baseline with per-source overrides, strip any key that appears in any provider's believed_free list before writing to sidecar["pricing"]. The filter runs on every update so newly believed-free models are cleaned up automatically and models removed from believed_free re-appear in pricing on the next run. Also remove the three Cloudflare entries already in providers.json that were in both the pricing block and believed_free (llama-2-7b-chat-fp16, llama-2-7b-chat-int8, mistral-7b-instruct-v0.1). The fourth entry (@hf/thebloke/codellama-7b-instruct-awq) is not believed_free and is left intact. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XLHnQxLYrMzpm5Ar83ihNC
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Summary
This PR fixes an issue where models marked as "believed_free" were still being included in the pricing block, causing the cost accounting system to incorrectly attribute per-token costs to free-tier requests. This led to free models being misclassified in the cost tracking system.
Changes
_merge_pricing()inscripts/update_free_models.pyto automatically strip any models marked as "believed_free" from the final pricing block after merging updatesImplementation Details
The fix works by:
https://claude.ai/code/session_01XLHnQxLYrMzpm5Ar83ihNC