[akasakariko]

Summary

• Preserve provider boundaries and full model IDs when importing AI model prices and context sizes
• Add optional provider tables while retaining the version 1 model-only table for older Relay versions and spans without a provider
• Apply OpenRouter API precedence only within OpenRouter and the legacy table
• Add provider-local aliases without replacing exact IDs or introducing ambiguous short names

Reproduction

• Reproduced on upstream commit 86b1728 before changing production code
• A regression fixture with Cloudflare Workers AI and OpenRouter selected the OpenRouter rate of $42 per billion input tokens instead of the Cloudflare rate of $240
• The same fixture showed Poe pricing overwriting Anthropic pricing for the same model
• The regression failed before the fix and passes with separate provider tables

Verification

• 40 relevant Python tests passed across metadata import, model normalization, and cache detection pricing
• Repository pre-commit checks passed
• Targeted repository mypy pre-push check passed with the local Sentry configuration
• Added coverage for provider separation, OpenRouter precedence, full IDs, ambiguous aliases, and snapshot normalization

Rollout

• Requires companion fix(ai): Use provider-specific model pricing relay#6558 for provider-aware lookup to fix ingestion end to end
• Both changes can be deployed in either order because the legacy models table and metadata version remain supported
• Existing Python model-only consumers remain unchanged

AI assistance

• Substantial implementation and test work was generated with an AI coding assistant and reviewed against the producer and consumer paths

Fixes #128011

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