# NousResearch/hermes-agent · Vision fallback routing fixes for text-only models

## Open now

- 2 issues, 1 PR open on GitHub.
- #50426: \[Bug\] auxiliary.vision provider=auto yields no backend when main provider is OpenRouter with a text-only model (OpenRouter skipped in fallback loop)
- #56995: \[Bug\]: Text-only main model (GLM 5.2) + image attachment hard-fails — auto vision fallback never resolves despite OPENROUTER_API_KEY set
- PR #83769: fix(agent): stop skipping main provider in vision auto fallback (#50426)

These issues and fixes address bugs where auxiliary vision routing fails to find a valid backend when the main provider uses a text-only model, particularly with OpenRouter. Changes adjust fallback logic to correctly skip or include providers during vision auto-routing.

## TL;DR

- 4 member(s): 2 open issue(s), 0 closed issue(s), 1 open PR(s), 0 merged PR(s), 1 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evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
- Members outside that structural core may belong to a different underlying problem.
- Pairwise link density `0.39`: 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

- #50426: \[Bug\] auxiliary.vision provider=auto yields no backend when main provider is OpenRouter with a text-only model (OpenRouter skipped in fallback loop)
- #56995: \[Bug\]: Text-only main model (GLM 5.2) + image attachment hard-fails — auto vision fallback never resolves despite OPENROUTER_API_KEY set

## Prior & competing PRs

- **#57001: fix(vision): allow aggregator fallback when main provider model is text-only (#56995)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#50543`, `#57001`, `#56995`, `#50426`, `#50543`, `#50543`
- **#83769: fix(agent): stop skipping main provider in vision auto fallback (#50426)**. open
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#50426`
  - files: `agent/auxiliary_client.py`, `tests/agent/test_vision_routing_31179.py`

## Fix status

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