# NousResearch/hermes-agent · Fix vision fallback to avoid text-only models

## Open now

- Nothing open on GitHub.

These issues and pull requests address a bug where auxiliary vision tasks incorrectly fall back to text-only models, and where upstream capacity errors (such as 429s) improperly trigger credential pool rotation or exhaustion.

## TL;DR

- 6 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 4 PR(s) closed without merging.
- A fix was merged to main in PR #113970. Verify it addresses your case.
- **Recommended:** read PR #113970 (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: `resolved` · deciding PR(s): `pr-113970`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.33`: 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

- #108349: \[Bug\]: Aux vision fallback sends images to text-only main model on transient Nous 429 (upstream capacity) -> 1210; also marks chat credential pool exhausted

## Prior & competing PRs

- **#113970: fix(aux): OpenRouter budget-limit 403 falls back, quarantine logs name the real reason, vision fallback skips text-only models (#107166, #64144, #108349, salvage #107173 #64146 #108366)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `agent/auxiliary_client.py`, `agent/error_classifier.py`, `tests/agent/test_auxiliary_client.py`, `tests/agent/test_auxiliary_error_classification.py`
- **#108366: fix(aux): do not fall back to a text-only main model for vision tasks**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `a1238adfae4`, `#113970`
- **#108373: fix(auxiliary): preserve vision routing on Nous capacity errors**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `a1238adfae4`, `#113970`
- **#108379: fix(agent): screen vision capabilities in aux fallbacks and protect pool on upstream capacity 429 (fixes #108349)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `a1238adfae4`, `#113970`
- **#108546: fix(agent): screen vision fallbacks by capability; don't rotate pool on upstream-capacity 429**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `a1238adfae4`, `#113970`

## Fix status

- Merged to main in PR #113970 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-17`.