Gemini 3.1 Pro

Google DeepMind

class A live

Google's reasoning-first flagship Pro model; 1M-token multimodal (text/image/audio/video), tuned for agentic and coding tasks.

Layer 1 — factual axes

API & price	$2.00 / $12.00 per 1M (<=200K); $4.00 / $18.00 above	official	source ↗ 2026-07-04
Context	1M	official	source ↗ 2026-07-04
Weights	closed	official	source ↗ 2026-07-04
Multimodal	text+image+audio+video	official	source ↗ 2026-07-04
Free tier	limited (chat app)	official	source ↗ 2026-07-04

Layer 2 — output quality

46 / 100

Artificial Analysis Intelligence Index ↗ measured 2026-07-04

Eligible for Best free Best for API Multimodal

Google’s reasoning-first flagship Pro model; 1M-token multimodal (text/image/audio/video), tuned for agentic and coding tasks.