# NousResearch/hermes-agent · Fallback deduplication bug with differing base_url

## Open now

- 1 issue, 0 PRs open on GitHub.
- #54251: \[Bug\]: Fallback with same provider + model but different base_url incorrectly skipped as duplicate

A bug caused fallback entries sharing the same provider and model but different base_url values to be incorrectly skipped as duplicates. These members address the fix across runtime, CLI, and agent contexts.

## TL;DR

- 5 member(s): 1 open issue(s), 0 closed issue(s), 0 open PR(s), 1 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #72505. Verify it addresses your case.
- **Recommended:** read PR #72505 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.40`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Open related issues

- #54251: \[Bug\]: Fallback with same provider + model but different base_url incorrectly skipped as duplicate

## Prior & competing PRs

- **#54313: fix(agent): keep same-provider+model fallback with a different base_url**. closed without merge · fix tier `suggested`
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#54250`, `#54251`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#72505: refactor(fallback): single owner for backend identity and failure-scoped skips**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/auxiliary_client.py`, `agent/backend_identity.py`, `agent/chat_completion_helpers.py`, `hermes_cli/fallback_cmd.py`, `tests/agent/test_backend_identity.py`
- **#45316: fix: model fallback config**. closed without merge
  - maintainer direction: category `partial_fix`; implication `needs_llm`; refs `32bc36522e9f974167640c5101eec979cba63c79`
- **#62984: fix(fallback): dedup by full provider/model/base_url identity (runtime + CLI)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#72505`, `#54250`, `#57584`

## Fix status

- Merged to main in PR #72505 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-07-27`.
- Subsystem: `agent`