WhichAI / Models / Gemini 3.1 Pro

Gemini 3.1 Pro

· verified September 8, 2026

public paid api in Generator coding long-context vision

Provider

Statuspublic

AA Intelligence Index47.7 (September 8, 2026 snapshot)

Releasedn/a

Context window1M

Modalitiesn/a

API price $/1M (in / out)$2 / $12 · $4/$18 above 200K input tokens

Speedn/a

AccessGoogle AI Pro $19.99/mo · API · inside Perplexity Pro

In one line

Led LMArena's coding arena at launch and still the Gemini tier with the deepest Google Workspace integration. On raw capability the Flash line has since overtaken it, so pick this one for the ecosystem, not the score.

Coding84

Reasoning78

Writing74

Agents & tools78

Category scores (0-100) are WhichAI blended ratings: public category leaderboards plus editorial judgment. Guidance, not official measurements.

Alternatives worth a look

Qwen3.7 Max (Alibaba) · AA 46.7Free chat app · API (closed weights for Max tier)
Kimi K2.6 (Moonshot AI) · AA 45.1Open weights · API hosts · free chat app
MiniMax M3 (MiniMax) · AA 44.4Open weights · API hosts

Head-to-head: Gemini 3.1 Pro vs GPT-5.6 Terra

Open Gemini's official app ↗ Open in the WhichAI app Not sure? Take the 30-second finder

Artificial Analysis Intelligence Index, 2026 rebased scale (top models ~ 55-66). Snapshot: September 4, 2026 (BenchLM mirror), retrieved September 8, 2026. Specs and prices come from the OpenRouter public model list on the same date. Models nobody has measured carry no index score at all and never enter a ranking: where an estimate exists it is shown separately and labelled unmeasured. Context, price, modality and release dates come from the public OpenRouter model list (retrieved September 8, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).