# NousResearch/hermes-agent · Grok 4.6 service_tier silently stripped bug

## Open now

- Nothing open on GitHub.

A bug where xhigh effort and priority service_tier parameters are silently downgraded or removed for Grok 4.6. Multiple fix attempts address preserving these values correctly.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #85510. Verify it addresses your case.
- **Recommended:** read PR #85510 (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-85510`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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

- #84799: \[Bug\]: Grok 4.6 xhigh and priority service_tier are silently downgraded/stripped

## Prior & competing PRs

- **#85510: fix(xai): preserve xhigh effort and priority service_tier for Grok 4.6**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/model_metadata.py`, `agent/transports/codex.py`, `hermes_cli/models.py`, `tests/agent/transports/test_codex_transport.py`, `tests/cli/test_fast_command.py`
- **#84820: fix(xai): preserve Grok 4.6 xhigh and priority processing**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#85510`, `#84848`, `#84799`
- **#84848: fix(xai): preserve xhigh effort and priority service_tier for Grok 4.6**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#84820`

## Fix status

- Merged to main in PR #85510 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-13`.