Gemini 3.1 Pro Preview is Google's preview route for advanced problem solving, agentic coding, and large multimodal projects. Use a stable Flash version when preview lifecycle risk is undesirable.
advanced problem solving, agentic coding, and large mixed-media projects
Context window
1,048,576
Maximum output
65,536
Streaming
Supported
Selected model
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview
What this model is built to do
Gemini 3.1 Pro Preview is Google's preview route for advanced problem solving, agentic coding, and large multimodal projects. Use a stable Flash version when preview lifecycle risk is undesirable.
What Gemini 3.1 Pro Preview can handle
Text
Vision
Image input
Video input
Reasoning
Tool calling
Streaming
Three jobs to try first
When to choose Gemini 3.1 Pro Preview
1
Evidence-led research plan
Turn an open question into hypotheses, evidence needs, evaluation criteria, and a final report shape.
Prompt starter
Design a research plan for [question]. List competing hypotheses, the evidence needed to test each one, source-quality criteria, stopping rules, and the final report outline.
2
Video and mixed-media review
Combine frames, audio, PDFs, and notes into one timeline or evidence-led review.
Prompt starter
Review the attached media as one project. Build a timestamped issue list, connect each issue to visible or audible evidence, and propose an edit plan.
3
Multi-step agent plan
Decompose a long-running goal into checkpoints, tools, verification, and recovery steps.
Prompt starter
Plan and execute [goal] in checkpoints. Before each action state the evidence needed; after each action verify the result and update the remaining plan. Stop on irreversible ambiguity.
Current PixMind route
This PixMind route exposes text, image, and video input with text output. Audio and PDF are not listed for this route snapshot.
Model ID
gemini-3.1-pro-preview
Endpoint
/v1/chat/completions
PixMind inputs
Text · Image input · Video input
Thinking model; preview route
Current token pricing
Input
1,911
points per 1M tokens
Output
11,466
points per 1M tokens
Choose this model or switch?
Compare the current route with nearby models before spending tokens on a long conversation.
How do I use Gemini 3.1 Pro Preview for “Evidence-led research plan”?
Turn an open question into hypotheses, evidence needs, evaluation criteria, and a final report shape. Start with this template: Design a research plan for [question]. List competing hypotheses, the evidence needed to test each one, source-quality criteria, stopping rules, and the final report outline.
How do I use Gemini 3.1 Pro Preview for “Video and mixed-media review”?
Combine frames, audio, PDFs, and notes into one timeline or evidence-led review. Start with this template: Review the attached media as one project. Build a timestamped issue list, connect each issue to visible or audible evidence, and propose an edit plan.
How do I use Gemini 3.1 Pro Preview for “Multi-step agent plan”?
Decompose a long-running goal into checkpoints, tools, verification, and recovery steps. Start with this template: Plan and execute [goal] in checkpoints. Before each action state the evidence needed; after each action verify the result and update the remaining plan. Stop on irreversible ambiguity.
What inputs does Gemini 3.1 Pro Preview currently support in PixMind?
This PixMind route exposes text, image, and video input with text output. Audio and PDF are not listed for this route snapshot. The current catalog flags: text, vision, image, video.
How should I prompt Gemini 3.1 Pro Preview?
Assign each attachment a role, describe what evidence to extract, and request a structured synthesis rather than a generic summary.
How is Gemini 3.1 Pro Preview usage priced?
Current directory pricing is 1911 input points and 11466 output points per 1 million tokens.
When should I choose another model over Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview is positioned for advanced problem solving, agentic coding, and large mixed-media projects. Check the comparison table when lower cost, different input support, or a heavier reasoning tier matters more.
What should I do if a Gemini 3.1 Pro Preview response stops?
A network interruption, insufficient balance, or temporary model availability can stop a reply. Before resending, check whether token usage and points were already settled.
Start a conversation · Gemini 3.1 Pro Preview
Use the prompt box above to send a focused first task, then continue in the full AI Chat workspace.