# NousResearch/hermes-agent · Fix reasoning token tracking across providers

## Open now

- 1 issue, 1 PR open on GitHub.
- #41583: Bug: reasoning_tokens always 0 for reasoning models (MiMo v2.5)
- PR #41614: fix(agent): fall back to top-level reasoning_tokens for providers without nested usage details

These issues and PRs address a bug where reasoning_tokens was always reported as 0, with fixes to read from the correct nested or top-level fields in completion responses and improvements to usage/context window display.

## TL;DR

- 3 member(s): 1 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Open related issues

- #41583: Bug: reasoning_tokens always 0 for reasoning models (MiMo v2.5)

## Prior & competing PRs

- **#18484: fix(usage): read reasoning_tokens from completion_tokens_details (chat completions)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `3a122ba4acaabec5768ceddb46da82e43c382d7c`, `#57340`
- **#41614: fix(agent): fall back to top-level reasoning_tokens for providers without nested usage details**. open
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `3a122ba4a`, `#57340`
  - files: `agent/usage_pricing.py`, `tests/agent/test_usage_pricing.py`

## Fix status

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