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feat(vertex): add validated Gemini model catalog for /model picker

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Add a "vertex" key to _PROVIDER_MODELS with 6 Gemini 3.x models that
were validated live against the Vertex AI OpenAI-compatible endpoint
(aiplatform.googleapis.com, global region, project antse-tooling) on
2026-07-21. All entries returned HTTP 200; 8 other candidates (e.g.
gemini-3.1-flash, gemini-3-pro-preview) returned 404 and were excluded.

Validated models (google/ prefix required by Vertex endpoint):
- google/gemini-3.5-flash       (frontier Flash, agentic)
- google/gemini-3.6-flash       (newer incremental over 3.5)
- google/gemini-3.5-flash-lite  (lighter/cheaper 3.5 variant)
- google/gemini-3.1-pro-preview (3.1 Pro preview)
- google/gemini-3-flash-preview (3.0 Flash preview)
- google/gemini-3.1-flash-lite  (most cost-efficient 3.x model)

Context lengths are covered by the existing "gemini" prefix entry
(1_048_576) in agent/model_metadata.py DEFAULT_CONTEXT_LENGTHS — no
additional entries needed.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
ceverson70 2026-07-21 12:05:09 -04:00 • committed by Teknium
parent e25d516c8c
commit d7f6dadbea
1 changed files with 13 additions and 0 deletions
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13
hermes_cli/models.py
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@ -575,6 +575,19 @@ _PROVIDER_MODELS: dict[str, list[str]] = {
"deepseek/deepseek-r1-0528",
"qwen/qwen3-235b-a22b-fp8",
],
# Google Vertex AI — OpenAI-compatible endpoint
# (aiplatform.googleapis.com/v1beta1/projects/<proj>/locations/global/endpoints/openapi)
# IDs must use the "google/" prefix exactly as returned by the API.
# All entries below have been validated live against the antse-tooling GCP
# project (global region) and returned HTTP 200 as of 2026-07-21.
"vertex": [
"google/gemini-3.5-flash", # frontier Flash; strong agentic + coding
"google/gemini-3.6-flash", # incremental over 3.5-flash (newer)
"google/gemini-3.5-flash-lite", # lighter/cheaper 3.5 Flash variant
"google/gemini-3.1-pro-preview", # 3.1 Pro preview
"google/gemini-3-flash-preview", # 3.0 Flash preview
"google/gemini-3.1-flash-lite", # most cost-efficient Gemini 3.x
],
}
# ---------------------------------------------------------------------------