NousResearch/hermes-agent

Gateway rejects mismatched session model/provider pairs

Cluster 96817. Data as of 2026-10-30 11:57 UTC

Nothing open on GitHub. Fix merged in #116344 on 19 Sep 2026. Check it covers your case.

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Known?: Yes. 3 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #116344. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #116344. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #116344, then check it covers your case.

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These items address a gateway issue where session.create accepts model and provider combinations that are incompatible, causing sessions to fail on the first message. The work involves adding validation to reject incoherent model×provider pairs at session creation time.

Open issues0

No open issues.

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No open pull requests.

Fixes on record

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

#116344 session.create refuses a model its provider cannot serve instead of a dead first turn (#96817, salvage #96845)

merged to main

files: hermes_cli/models_validate.py, tests/tui_gateway/test_session_create_model_provider_guard.py, tui_gateway/methods_session.py, tui_gateway/methods_session_model_guard.py, website/docs/developer-guide/programmatic-integration.md

1 PR closed without merging

From the close comments: done elsewhere 1

#96845 fix(gateway): reject incoherent session model providers · done elsewhere → abc21bb, #116344

Closed issues · 1

Closed#96817fix(gateway): session.create accepts incoherent model×provider pairs, birthing sessions that 400 on message 1

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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.67: 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

Merged PRs: #116344
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 19 Sep 2026

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