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fix(gemini): clamp Flash thinkingLevel to documented low/medium/high set

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Gemini 3 Flash documents low/medium/high as the accepted thinkingLevel
values. The salvaged bridge was forwarding Hermes' "minimal" effort to
Flash verbatim, which is not a documented Gemini level and risks a 400
from the native adapter.

Clamp minimal->low on Flash (matching how Pro already clamps minimal+low
down), and funnel anything outside {low, medium, high} into medium to
keep the request valid by construction. No behaviour change for the
documented effort levels.
This commit is contained in:
teknium1 2026-04-28 05:37:35 -07:00 • committed by Teknium
parent dbbe2d1973
commit 529eb29b6a
2 changed files with 24 additions and 3 deletions
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12
agent/transports/chat_completions.py
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@ -51,11 +51,17 @@ def _build_gemini_thinking_config(model: str, reasoning_config: dict | None) ->
if effort not in {"minimal", "low", "medium", "high", "xhigh"}:
effort = "medium"
# Gemini 3 Flash supports the wider level set; Gemini 3 Pro is stricter,
# so collapse low-end efforts to ``low`` and high-end efforts to ``high``.
# Gemini 3 Flash documents low/medium/high thinking levels; Gemini 3 Pro
# is stricter (low/high). Clamp Hermes' wider effort set to what each
# family accepts so we never forward an undocumented level verbatim.
if normalized_model.startswith(("gemini-3", "gemini-3.1")):
if "flash" in normalized_model:
thinking_config["thinkingLevel"] = "high" if effort == "xhigh" else effort
if effort in {"minimal", "low"}:
thinking_config["thinkingLevel"] = "low"
elif effort in {"high", "xhigh"}:
thinking_config["thinkingLevel"] = "high"
else:
thinking_config["thinkingLevel"] = "medium"
elif "pro" in normalized_model:
thinking_config["thinkingLevel"] = (
"high" if effort in {"high", "xhigh"} else "low"