Google Gemini models in Big-AGI

A genuinely free tier, a million-token context, native image generation - Gemini on your own key, with controls the Gemini app hides.

The frontier lab you can start on for $0.

Google gives Gemini a genuinely free tier, a million-token context window, and native image generation. Big-AGI runs all of it on your own key with the controls the Gemini app keeps to itself. Set the thinking level, ground answers in Google Search with a recency window, tune media resolution, or generate images at a chosen aspect ratio and size. No card to begin.

It reaches the newest previews too: Deep Research agents that return long-form reports, and Omni Flash, which turns a prompt into a short video with sound. Then beam Gemini's long-context read against Claude and GPT and keep what they agree on.

All supported Google Gemini models

ModelContextInputOutputReleased
Nano Banana 2.1NEWGemini Nano Banana 2.1.131K$1.50$7.50VisionReasoningTools / functionsWeb searchImage outputOct 2026Gemini 4 ArgonNEWHOTGemini 4 Argon1.1M$2.00$10.00VisionReasoningTools / functionsWeb searchSep 2026Gemini 3.8 Flash-Lite TTSNEWGemini 3.8 Flash Lite TTS25K$0.50$6.00VisionAudio outputSep 2026Gemini 3.8 Flash TTSNEWGemini 3.8 Flash TTS25K$0.50$9.00VisionAudio outputSep 2026Antigravity Agent Preview LatestdeprecatedLatest preview release of Antigravity Agent1.1M--VisionTools / functionsSep 2026Antigravity Agent Preview (2026-09)Preview release of Antigravity Agent (09-2026)1.1M$0.75$3.75VisionReasoningSep 2026Gemini 3.8 FlashHOTGemini 3.8 Flash1.1M$0.75$3.75VisionReasoningTools / functionsWeb searchSep 2026Gemini Flash LatestdeprecatedLatest release of Gemini Flash1.1M--VisionTools / functionsSep 2026Gemini Omni 1.1 Flash (video)Gemini Omni 1.1 Flash197K$1.50$17.50VisionAug 2026Gemini 3.5 TranscribedeprecatedGemini 3.5 Transcribe131K--VisionTools / functionsAug 2026Gemini 3.7 Flash Video UnderstandingdeprecatedGemini 3.7 Flash Video Understanding EAP1.1M$0.75$3.75VisionReasoningTools / functionsWeb searchAug 2026Gemini 3.7 FlashHOTGemini 3.7 Flash1.1M$0.75$3.75VisionReasoningTools / functionsWeb searchAug 2026Gemini Robotics-ER 2 PreviewGemini Robotics-ER 2 Preview197K$1.00$5.00VisionReasoningTools / functionsWeb searchJul 2026Gemini 3.5 Flash-LiteHOTGemini 3.5 Flash Lite1.1M$0.30$2.50VisionReasoningTools / functionsWeb searchJul 2026Gemini 3.6 FlashGemini 3.6 Flash1.1M$0.75$3.75VisionReasoningTools / functionsWeb searchJul 2026Nano Banana 2 LiteGemini 3.1 Flash Lite Image.131K$0.25$1.50VisionReasoningTools / functionsWeb searchImage outputJun 2026Gemini Omni Flash Preview (video)Gemini Omni Flash Preview197K$1.50$17.50VisionJun 2026Nano Banana 2Gemini 3.1 Flash Image.131K$0.50$3.00VisionReasoningTools / functionsWeb searchImage outputMay 2026Nano Banana ProGemini 3 Pro Image164K$2.00$12.00VisionReasoningTools / functionsWeb searchImage outputMay 2026Gemini 3.5 FlashGemini 3.5 Flash1.1M$0.75$3.75VisionReasoningTools / functionsWeb searchMay 2026Antigravity Agent Preview (2026-05)Preview release of Antigravity Agent (05-2026)1.1M$0.75$3.75VisionReasoningMay 2026Gemini 3.1 Flash-LiteGemini 3.1 Flash Lite1.1M$0.25$1.50VisionReasoningTools / functionsWeb searchMay 2026Deep Research Max Preview (2026-04)Preview release (April 21st, 2026) of Deep Research Max197K$1.25$10.00VisionReasoningApr 2026Deep Research Preview (2026-04)Preview release (April 21th, 2026) of Deep Research197K$1.25$10.00VisionReasoningApr 2026Gemini 3.1 Flash TTS PreviewGemini 3.1 Flash TTS Preview25K$1.00-VisionAudio outputApr 2026Gemini Robotics-ER 1.6 PreviewdeprecatedGemini Robotics-ER 1.6 Preview197K$1.00$5.00VisionReasoningTools / functionsApr 2026Gemma 4 31B ITGemma 4 31B IT295KFreeFreeVisionReasoningTools / functionsApr 2026Gemma 4 26B A4B ITGemma 4 26B A4B IT295KFreeFreeVisionReasoningTools / functionsApr 2026Gemini 3.1 Flash-Lite PreviewGemini 3.1 Flash Lite Preview1.1M$0.25$1.50VisionReasoningTools / functionsWeb searchMar 2026Nano Banana 2 PreviewGemini 3.1 Flash Image Preview.131K$0.50$3.00VisionReasoningTools / functionsWeb searchImage outputFeb 2026Gemini 3.1 Pro PreviewHOTGemini 3.1 Pro Preview1.1M$2.00$12.00VisionReasoningTools / functionsWeb searchFeb 2026Gemini 3.1 Pro Preview (Custom Tools)Gemini 3.1 Pro Preview optimized for custom tool usage1.1M$2.00$12.00VisionReasoningTools / functionsWeb searchFeb 2026Gemini 3 Flash PreviewGemini 3 Flash Preview1.1M$0.50$3.00VisionReasoningTools / functionsWeb searchDec 2025Deep Research Pro PreviewDeprecated preview agent; automatically rerouting traffic to deep-research-preview-04-2026.197K$1.25$10.00VisionReasoningDec 2025Nano Banana Pro PreviewGemini 3 Pro Image Preview164K$2.00$12.00VisionReasoningTools / functionsWeb searchImage outputNov 2025Nano Banana ProGemini 3 Pro Image Preview164K$2.00$12.00VisionReasoningTools / functionsWeb searchImage outputNov 2025Gemini 2.5 Computer Use Preview 10-2025Gemini 2.5 Computer Use Preview 10-2025197K$1.25$10.00VisionReasoningTools / functionsOct 2025Nano BananaGemini 2.5 Flash Preview Image66K$0.30-VisionImage outputOct 2025Gemini 2.5 Flash-LiteStable version of Gemini 2.5 Flash-Lite, released in July of 20251.1M$0.10$0.40VisionReasoningTools / functionsWeb searchJul 2025Gemini 2.5 ProStable release (June 17th, 2025) of Gemini 2.5 Pro1.1M$1.25$10.00VisionReasoningTools / functionsWeb searchJun 2025Gemini 2.5 FlashStable version of Gemini 2.5 Flash, our mid-size multimodal model that supports up to 1 million tokens, released in June of 2025.1.1M$0.30$2.50VisionReasoningTools / functionsWeb searchJun 2025Gemini 2.5 Flash Preview TTSGemini 2.5 Flash Preview TTS25K$0.50-VisionAudio outputMay 2025Gemini 2.5 Pro Preview TTSGemini 2.5 Pro Preview TTS25K$1.00-VisionAudio outputMay 2025Gemini 2.0 Flash 001deprecatedStable version of Gemini 2.0 Flash, our fast and versatile multimodal model for scaling across diverse tasks, released in January of 2025.1.1M$0.10$0.40VisionTools / functionsFeb 2025
44 models · sorted by release date · prices in USD per 1M tokens · refreshed hourlyCompare every model across vendors ->

Get started in 3 steps

1

Create an API key at the Google Gemini console.

2

Paste it into Big-AGI's model settings.

3

Start chatting, or Beam it against other models and fuse the answers.

Running Google Gemini in Big-AGI

Add your Google AI Studio key and use Gemini models at Google's own API rates. Big-AGI isn't a reseller: no markup and no intermediary, so Google bills you directly.

  • Your key, your billing. Usage is billed by Google directly, nothing routes through us.
  • Thinking control, matched to the generation. Newer Gemini models get discrete thinking levels, older ones a numeric token budget; Big-AGI always sends the right shape.
  • Long context, multimodal, real image generation. Feed Gemini a full codebase, a video transcript, or a stack of research papers in one context, with images in the same chat, and generate images with real aspect-ratio and resolution controls under the names Google itself markets.
  • Two tracks, pick per task. Gemini ships Pro for depth and long context, Flash for speed and volume. Both appear in the table below, so you choose per task, not per app.

Why not just the Gemini app?

The Gemini app is Google's model in Google's box. Big-AGI runs Gemini next to GPT, Claude, Grok, and anything else you've connected, side by side in one conversation, which the Gemini app isn't built to do.

It also surfaces controls the consumer app keeps hidden: Gemini's API lets you set the thinking level and temperature per request, real parameters Google ships, not settings we made up. Your keys stay in your browser instead of your Google account.

Billing shifts from monthly to per-token too. A light user can spend less in a month than a subscription costs, and a heavy user never runs into a usage cap, only a bill for tokens actually used. Beam parallel runs do use more tokens than a single reply, that part isn't free.

Your keys and your data

Turn on Direct Connection under Google's Advanced settings and the browser calls Google directly, bypassing the Big-AGI server, whenever your key is client-side and Google's API allows it. Your keys stay in your browser. Chats are stored locally first and sync only if you turn it on. The AI Inspector shows the exact request before it goes out: model, parameters, token counts, and a cost estimate.

Gemini in Beam

Beam runs Gemini against GPT, Claude, or any other model you've connected, in parallel, then hands you Fusions: several strategies that combine, cross-check, and synthesize the parallel answers, which beats just picking the best one. Parallel runs use more tokens than a single chat.

Bring your Google Gemini key. Keep control.

Your key, your data, your choice of model. Big-AGI's Open branch is open source and self-hostable, so you can check exactly how Google Gemini is called.

Launch Big-AGI

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