Tool review · Generative AI

Gemini 3.1 Pro review

Gemini 3.1 Pro is a large language model from Google. Its strengths are strong multimodal coverage; deep Google ecosystem integration. The main caution: listed as a preview model on the pricing page.

What it is

Gemini 3.1 Pro, released by Google in February 2026, is a multimodal model with strong agentic capabilities. It is listed at $2 and $12 per million tokens for prompts up to 200,000 tokens ($4 and $18 above that) and is offered in preview on the Gemini API.

Key features

  • Multimodal understanding across text, images, audio and video
  • Agentic and tool-use capabilities
  • Tiered pricing for prompts over 200,000 tokens
  • Available through the Gemini API and Google Cloud

Pros

  • Strong multimodal coverage
  • Deep Google ecosystem integration
  • Competitive price for a Pro-tier model

Cons

  • Listed as a preview model on the pricing page
  • Google has said Gemini 4 is coming
  • Output style can vary between interfaces

Pricing

Gemini 3.1 Pro is priced by usage rather than by seat: API: $2 in / $12 out per M tokens. That means cost scales with how much text you send and receive, so estimate your monthly volume before committing.

How to get started

Start with one real task you already do each week, give the model the full context, and compare the result with your usual output before changing your workflow. Keep sensitive client or patient data out of consumer chat apps unless your organization has approved the plan.

Alternatives to consider

  • ChatGPT (OpenAI, $20/mo): OpenAI's flagship conversational AI.
  • Claude (Anthropic, $20/mo): Anthropic's assistant, known for long-context reasoning, careful writing, and safety-aware outputs.
  • Claude Fable 5 (Anthropic, API: $10 in / $50 out per M tokens): Claude Fable 5 is a premium-tier Claude model priced above Opus, aimed at the hardest professional and technical work.
  • Claude Fable 5.1 (Anthropic, API: $10 in / $50 out per M tokens): Claude Fable 5.1 is Anthropic's premium generally available model, priced above Opus and built for the hardest reasoning, coding and analysis tasks.
  • Claude Haiku 4.5 (Anthropic, API: $1 in / $5 out per M tokens): Claude Haiku 4.5 is Anthropic's fast, low-cost model at $1 and $5 per million tokens.

Head-to-head comparisons

Frequently asked questions

What is Gemini 3.1 Pro?

Gemini 3.1 Pro, released by Google in February 2026, is a multimodal model with strong agentic capabilities. It is listed at $2 and $12 per million tokens for prompts up to 200,000 tokens ($4 and $18 above that) and is offered in preview on the Gemini API.

How much does Gemini 3.1 Pro cost?

Gemini 3.1 Pro is priced by usage rather than by seat: API: $2 in / $12 out per M tokens. That means cost scales with how much text you send and receive, so estimate your monthly volume before committing.

Is there a free version of Gemini 3.1 Pro?

Gemini 3.1 Pro does not currently list a permanent free tier. Look for a trial or a low-cost plan to test it on real work first.

What are the alternatives to Gemini 3.1 Pro?

Comparable generative ai options we review include ChatGPT, Claude, Claude Fable 5 and Claude Fable 5.1. Read each review to compare pricing, strengths and limits.

Independent review by the AI by Career editorial team. Last reviewed September 2026. No paid placement or affiliate influence; see our editorial policy.