Google AI Studio provides free access to Gemini models including Gemini 3.1 Pro, Flash, and other variants. Simple web-based interface and API access.

Supported Models

Gemini 3.1 ProGemini 3 FlashGemini 2.5 ProGemini 2.5 Flash

Key Features

  • Multimodal support
  • Long context (2M tokens)
  • Grounding with Google Search

Pros

  • Generous free tier
  • No credit card
  • Multimodal capabilities
  • High context window

Cons

  • Data used for training outside UK/CH/EEA/EU
  • Rate limits vary by model

Best Use Cases

Multimodal appsLong document analysisResearch assistants