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feat(google): add Gemini 4 Hydrogen text model #607

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Merged
Kamilbenkirane merged 1 commit into from
Nov 13, 2026
Merged

feat(google): add Gemini 4 Hydrogen text model #607

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25 changes: 25 additions & 0 deletions src/celeste/modalities/text/providers/google/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -327,4 +327,29 @@
TextParameter.DOCUMENT: DocumentsConstraint(),
},
),
Model(
id="gemini-4-hydrogen",
provider=Provider.GOOGLE,
display_name="Gemini 4 Hydrogen",
operations={Modality.TEXT: {Operation.GENERATE, Operation.ANALYZE}},
streaming=True,
parameter_constraints={
# Long decode to 1,048,576 needs background / v1beta1; Celeste sends neither.
Parameter.MAX_TOKENS: Range(min=1, max=65536),
# 4 Hydrogen rejects minimal (live API, Vertex model page).
TextParameter.THINKING_LEVEL: Choice(
options=["low", "medium", "high", "xhigh"]
),
TextParameter.TOOLS: ToolSupport(
tools=[WebSearch, CodeExecution, UrlContext]
),
TextParameter.TOOL_CHOICE: ToolChoiceSupport(),
TextParameter.OUTPUT_SCHEMA: Schema(),
# Media input support
TextParameter.IMAGE: ImagesConstraint(),
TextParameter.VIDEO: VideosConstraint(),
TextParameter.AUDIO: AudioConstraint(),
TextParameter.DOCUMENT: DocumentsConstraint(),
},
),
]
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