LLM Catalog: Investigate missing Claude Opus 4.5 in featured models

[lbedner]

Summary

Claude Opus 4.5 is not appearing in featured models lookup despite being a current model. Claude Haiku 4.5 shows up correctly.

Problem

When querying featured models sorted by date (latest first), Opus 4.5 is missing from results. This suggests a data or sync issue.

Investigation Areas

1. Source data check

   • Is Opus 4.5 present in the synced catalog data at all?
   • Does it have a valid release/created date?
   • Compare Opus 4.5 record vs Haiku 4.5 record

2. Sync process

   • Is the sync pulling all models correctly?
   • Any filtering that might exclude Opus 4.5?
   • When was the last successful sync?

3. Query/sort logic

   • How is "latest" being determined? (release_date? created_at? updated_at?)
   • Is there a date parsing issue for Opus 4.5 specifically?
   • Any null/missing date handling that could exclude models?

4. Featured model criteria

   • What makes a model "featured"?
   • Is Opus 4.5 flagged correctly?

Context

• Current date: January 31, 2026
• Opus 4.5 model ID: claude-opus-4-5-20251101
• Expected: Opus 4.5 should appear as a featured model
• Actual: Only Haiku 4.5 appears, Opus 4.5 missing

Expected Outcome

Opus 4.5 should appear in featured models, likely at or near the top given it's Anthropic's most recent flagship model.