feat: Gemma 4 12B multimodal duo — default main+multimodal serve (#69) (v0.32.1) - #72

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spec/gemma-duo-issue-69

Jun 30, 2026

Commits on Jun 30, 2026

spec: Gemma 4 multimodal duo for default serve (issue #69) (v0.32.1)

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plan: Gemma multimodal duo build plan (issue #69)

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t1: infer_parser rule for the Gemma 4 12B id

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merge t1: infer_parser rule for the Gemma 4 12B id
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t2: Gemma multimodal catalog gear + main/minor/multimodal tiers + 14B demotion

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merge t2: Gemma multimodal catalog gear + main/minor/multimodal tiers + 14B demotion
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test: reconcile test_catalog_tiers to main/minor/multimodal vocab (14B->candidate)

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t3: default-on vllm-multimodal (vision+audio+native-MTP), 14B legacy profile, DSpark off

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merge t3: default-on vllm-multimodal (vision+audio+native-MTP), 14B legacy profile, DSpark off
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t4: gateway routes main/minor/multimodal (+back-compat), middle->multimodal wiring

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merge t4: gateway routes main/minor/multimodal (+back-compat), middle->multimodal wiring + tier_aliases fix
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t5: lobes serve/init default to the main+multimodal duo; --single restores legacy
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merge t5: lobes init/serve default to the main+multimodal duo; --single restores legacy
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t6: pressure seam — degraded mode downgrades main/multimodal to minor (main/minor/multimodal vocab)

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merge t6: pressure seam — degraded mode downgrades main/multimodal to minor (new vocab)
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docs(gateway): update pressure docstring to main/minor/multimodal vocab (#69)

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colleague: Expand the stub file docs/gemma-4-12b-nvfp4.md into a COMPLET...
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merge t9 (colleague): expand docs/gemma-4-12b-nvfp4.md (Gemma multimodal per-model doc)
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docs(gemma): fix DSpark toggle (speculative-config override, not model swap) + topology wording

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docs(gemma): markdownlint — avoid '+ AUDIO' wrapped-line list-style false positive
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t8: smoke test — duo reachable (live-gated) + legacy profile selectable

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merge t8: smoke test — duo reachable (live-gated) + legacy profile selectable
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t9b: update supporting docs (fleet topology, 14B demotion, pressure seam) to the Gemma duo

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merge t9b: supporting docs — fleet topology, 14B demotion, pressure seam (Gemma duo)
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docs(CLAUDE): serve/init default to the duo (not single-model) since #69
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test(pressure): guard _TIER_ROLE mirror against catalog.TIER_ROLE drift

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docs/catalog: record t7 finding — Gemma gemma4_unified unsupported on nv26.04/26.05 (track in #71)

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eidetic: remember t7 finding — gemma4_unified unsupported on released vLLM images (#71)
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chore(sonar): retire 3 Gemma-risk TODO markers → cite tracking issue #71

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fix(gateway): restore 14B middle backend + honor legacy-keyed alias overrides

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