Gemini 3.1 Pro Preview Custom Tools
Advanced Gemini model for complex reasoning, coding, and multimodal analysis
BENCHMARKS
Not in the Epoch Capabilities Index. Epoch benchmarks what it can run, so this is a gap in coverage, not a poor result.
From the lab
Launch announcement · Feb 19, 2026Gemini 3.1 Pro: A smarter model for your most complex tasksRELEASE DATEFeb 19, 2026
WEIGHTSClosed weights
CONTEXT WINDOW1.05M
MAX OUTPUT65.5K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image, video, audio, pdf
OUTPUTStext
Specifications from Models.dev. Availability and limits may differ by provider. Benchmark scores come from Epoch AI under CC BY 4.0.