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Gemini 3 Pro (Preview)

Google · Gemini 3

Google's high-end Gemini preview model with very large context and strong multimodal reasoning.

Type
multimodal
Context
1049K tokens
Max Output
66K tokens
Status
preview
Input
$2/1M tok
Output
$12/1M tok
API Access
Yes
License
proprietary
multimodal reasoning long-context tool-use video-understanding agentic
Released November 2025 · Updated February 15, 2026

Overview

Freshness note: Model capabilities, limits, and pricing can change quickly. This profile is a point-in-time snapshot last verified on February 15, 2026.

Gemini 3 Pro (Preview) is Google’s highest-capability preview-tier model in the Gemini 3 family. It targets advanced workloads where multimodal inputs, long context, and complex reasoning need to work together in one pipeline.

Within Google’s lineup, Pro Preview is the quality-first option, while Flash models are tuned for lower latency and lower cost at scale.

Capabilities

Gemini 3 Pro Preview is strongest in:

  • Long-context reasoning over large documents and mixed evidence.
  • Multimodal understanding across text, image, audio, and video workflows.
  • Tool-enabled agent use cases where planning and iterative execution are required.
  • Complex summarization and synthesis tasks with tight instruction constraints.
  • Enterprise copilots that need broad capability coverage in a single endpoint.

Its large context window is especially useful for legal review, policy analysis, and cross-document technical investigations.

Technical Details

Google model docs describe Gemini 3 Pro Preview with:

  • 1,048,576 token context window.
  • 65,536 max output tokens.
  • Multimodal input support including text, images, audio, and video.
  • Preview status, meaning behavior and economics may change as it approaches fully stable release.

For production teams, this implies stronger model governance: version pinning, evaluation suites, and explicit fallback models are recommended.

Pricing & Access

Standard API pricing (<=200K input tokens, per 1M tokens):

  • Input: $2.00
  • Output: $12.00

Higher rates apply above 200K input tokens. Prompt caching and batch paths are available in the platform pricing model.

Access options include:

  • Gemini API via Google AI Studio / Vertex AI
  • Google Cloud deployment patterns with enterprise controls

Because this model supports very large contexts, monitoring token spend and retrieval discipline is critical.

Best Use Cases

Choose Gemini 3 Pro Preview when you need:

  • High-end multimodal analysis in one model.
  • Long-context retrieval and synthesis with large evidence sets.
  • Agentic workflows that combine reasoning and tool actions.
  • Cross-media assistants for research, operations, or support.

For high-throughput products, consider routing many requests to Gemini Flash and using Pro Preview for difficult or high-value tasks.

Comparisons

  • GPT-5 (OpenAI): GPT-5 is often preferred in OpenAI-native tool ecosystems; Gemini 3 Pro Preview stands out on broad multimodal handling with giant context.
  • Claude Opus 4.6 (Anthropic): Opus is a top option for instruction-heavy enterprise reasoning; Gemini offers stronger first-party video/audio multimodality in one model tier.
  • Grok 4 (xAI): Grok is competitive on frontier reasoning and real-time oriented workflows; Gemini Pro Preview currently has more mature cloud enterprise integration patterns.