# NousResearch/hermes-agent · Copilot GPT-5.4 intermittent misrouting to OpenRouter

## Open now

- Nothing open on GitHub.

A bug report and related fix attempts address Copilot GPT-5.4 intermittently routing to OpenRouter's /chat/completions endpoint, causing unsupported_api_for_model errors. Multiple fix and patch entries reference this routing instability issue.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 0 merged PR(s), 2 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.67`: 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.

## Closed / duplicate issues

- #3388: \[Bug\]: Copilot GPT-5.4 intermittently routes to OpenRouter /chat/completions and fails with unsupported_api_for_model

## Prior & competing PRs

- **#3645: Başlık: fix: stabilize Copilot provider routing for GPT-5.4 #3388**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#3649`, `#3388`
- **#3649: fix: stabilize copilot provider routing and prevent drift #3388**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `#7881`, `#3388`

## Fix status

- No merged fix on record.
- Subsystem: `gateway`