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NousResearch/hermes-agent

GLM API rejects 'ultra' reasoning_effort, fix clamps to 'max'

Cluster 70058 · agent. Data as of

Nothing open on GitHub. Fix merged in #90330 on 19 Aug 2026. Check it covers your case.

The short answer

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Known?
Yes. 4 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #90330. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
Nothing open on GitHub.

The GLM API returns HTTP 400 when passed 'ultra' as a reasoning_effort value, causing silent fallback behavior. Fixes address this by clamping 'ultra' to 'max' and also dropping empty tool_calls keys for GLM compatibility.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

  • #90330 fix: reasoning effort 'ultra' no longer 400s on non-Anthropic wires (#89503 class, salvage #89509)

    merged to main

    files: agent/auxiliary_client.py, agent/transports/chat_completions.py, agent/transports/codex.py, plugins/model-providers/copilot/__init__.py, plugins/model-providers/custom/__init__.py, tests/agent/test_reasoning_effort_wire_translation.py, tests/agent/transports/test_reasoning_effort_sibling_sites.py

2 PRs closed without merging

From the close comments: done elsewhere 1 · superseded by another PR 1

  • #70079 fix(agent): clamp 'ultra' reasoning_effort to 'max' for all models (#70058) · done elsewhere → #90330
  • #70182 fix(transports+agent): GLM reasoning_effort ultra + drop empty tool_calls key (#70058, #70126) · superseded by another PR → #90330
Closed issues · 1
  • Closed#70058reasoning_effort: "ultra" rejected by GLM API (HTTP 400), triggers silent fallback to Claude Sonnet
How this cluster was grouped
  • Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
  • Pairwise link density 0.50: the share of item 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.

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At a glance

Subsystem
agent
Merged PRs
#90330
Closed issues
1
Attempts
2 PRs closed without merging
Fix link checked
19 Aug 2026

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