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Use Google Gemini Models in Big-AGI.

Bring your own Google Gemini key and use Google Gemini at its own API rates, with no markup. Keys and chats stay in your browser. Run Google Gemini in parallel with other models, then compare and merge the answers.

Nano Banana 2

Nano Banana Pro

Gemini 3.5 Flash

Launch Big-AGI

Running Google Gemini in Big-AGI

Add your Google AI Studio key and use Gemini models at Google's own API rates. Big-AGI adds no markup and keeps your keys and chats in your browser, not on its servers.

Your key, your billing. Usage is billed by Google to your account. Big-AGI does not meter or charge for model usage.
Direct Connection. Turn it on and the browser calls Google directly, bypassing the Big-AGI server, when your key is client-side and Google allows it.
Long context, multimodal. Feed Gemini large documents and images, and use its multimodal input in the same chat.
Beam. Run Gemini in parallel with other models, then compare or merge the answers. Parallel runs use more tokens than a single chat.

All supported Google Gemini models

ModelContextInputOutputReleased

Nano Banana 2

NEW

Gemini 3.1 Flash Image. (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

131K

$0.5

May 2026

Nano Banana Pro

NEW

Gemini 3 Pro Image (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

164K

$12

May 2026

Gemini 3.5 Flash

NEW

Gemini 3.5 Flash (Version: 3.5-flash-05-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$1.5

May 2026

Antigravity Agent Preview (2026-05)

NEW

Preview release of Antigravity Agent (05-2026) (Version: 0.1, Defaults: temperature=undefined, topP=undefined, topK=undefined, interfaces=[generateContent,countTokens])

197K

$1.5

May 2026

Gemini 3.1 Flash-Lite

Gemini 3.1 Flash Lite (Version: 3.1-flash-lite-05-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$0.25

$1.5

May 2026

Deep Research Preview (2026-04)

Preview release (April 21th, 2026) of Deep Research (Version: deepthink-exp-05-20, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K

$1.25

$10

Apr 2026

Deep Research Max Preview (2026-04)

Preview release (April 21st, 2026) of Deep Research Max (Version: deepthink-exp-05-20, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K

$1.25

$10

Apr 2026

Gemini 3.1 Flash TTS Preview

Gemini 3.1 Flash TTS Preview (Version: 3.1-flash-tts-preview, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

25K

Apr 2026

Gemini Robotics-ER 1.6 Preview

Gemini Robotics-ER 1.6 Preview (Version: 1.6-preview, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

197K

Apr 2026

Gemma 4 31B IT

Gemma 4 31B IT (Version: 001, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

295K

Apr 2026

Gemma 4 26B A4B IT

Gemma 4 26B A4B IT (Version: 001, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

295K

Apr 2026

Gemini 3.1 Flash-Lite Preview

Gemini 3.1 Flash Lite Preview (Version: 3.1-flash-lite-preview-03-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$0.25

$1.5

Mar 2026

Nano Banana 2 Preview

Gemini 3.1 Flash Image Preview. (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

131K

$0.5

Feb 2026

Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview (Version: 3.1-pro-preview-01-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$12

Feb 2026

Gemini 3.1 Pro Preview (Custom Tools)

Gemini 3.1 Pro Preview optimized for custom tool usage (Version: 3.1-pro-preview-01-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$12

Feb 2026

Gemini 3 Flash Preview

Gemini 3 Flash Preview (Version: 3-flash-preview-12-2025, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$0.5

Dec 2025

Deep Research Pro Preview

Preview release (December 12th, 2025) of Deep Research Pro (Version: deepthink-exp-05-20, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K

$1.25

$10

Dec 2025

Nano Banana Pro

Gemini 3 Pro Image Preview (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

164K

$12

Nov 2025

Nano Banana Pro Preview

Gemini 3 Pro Image Preview (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

164K

$12

Nov 2025

Gemini 2.5 Computer Use Preview 10-2025

Gemini 2.5 Computer Use Preview 10-2025 (Version: Gemini 2.5 Computer Use Preview 10-2025, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K

$1.25

$10

Oct 2025

Nano Banana

Gemini 2.5 Flash Preview Image (Version: 2.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

66K

$0.3

Oct 2025

Gemini 2.5 Flash-Lite

Stable version of Gemini 2.5 Flash-Lite, released in July of 2025 (Version: 001, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$0.1

$0.4

Jul 2025

Gemini 2.5 Pro

Stable release (June 17th, 2025) of Gemini 2.5 Pro (Version: 2.5, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$1.25

$10

Jun 2025

Gemini 2.5 Flash

Stable version of Gemini 2.5 Flash, our mid-size multimodal model that supports up to 1 million tokens, released in June of 2025. (Version: 001, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$0.3

$2.5

Jun 2025

Gemini 2.5 Flash Preview TTS

Gemini 2.5 Flash Preview TTS (Version: gemini-2.5-flash-exp-tts-2025-05-19, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[countTokens,generateContent])

25K

$0.5

May 2025

Gemini 2.5 Pro Preview TTS

Gemini 2.5 Pro Preview TTS (Version: gemini-2.5-pro-preview-tts-2025-05-19, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[countTokens,generateContent,batchGenerateContent])

25K

May 2025

Gemini 2.0 Flash 001

Stable version of Gemini 2.0 Flash, our fast and versatile multimodal model for scaling across diverse tasks, released in January of 2025. (Version: 2.0, Defaults: temperature=1, topP=0.95, topK=40, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M

$0.1

$0.4

Feb 2025

Nano Banana 2

NEW

May 2026

Gemini 3.1 Flash Image. (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

131K · in $0.5 · out $3

Nano Banana Pro

NEW

May 2026

Gemini 3 Pro Image (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

164K · in $2 · out $12

Gemini 3.5 Flash

NEW

May 2026

Gemini 3.5 Flash (Version: 3.5-flash-05-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M · in $1.5 · out $9

Antigravity Agent Preview (2026-05)

NEW

May 2026

Preview release of Antigravity Agent (05-2026) (Version: 0.1, Defaults: temperature=undefined, topP=undefined, topK=undefined, interfaces=[generateContent,countTokens])

197K · in $1.5 · out $9

Gemini 3.1 Flash-Lite

May 2026

Gemini 3.1 Flash Lite (Version: 3.1-flash-lite-05-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M · in $0.25 · out $1.5

Deep Research Preview (2026-04)

Apr 2026

Preview release (April 21th, 2026) of Deep Research (Version: deepthink-exp-05-20, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K · in $1.25 · out $10

Deep Research Max Preview (2026-04)

Apr 2026

Preview release (April 21st, 2026) of Deep Research Max (Version: deepthink-exp-05-20, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K · in $1.25 · out $10

Gemini 3.1 Flash TTS Preview

Apr 2026

Gemini 3.1 Flash TTS Preview (Version: 3.1-flash-tts-preview, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

25K · in $1 · out -

Gemini Robotics-ER 1.6 Preview

Apr 2026

Gemini Robotics-ER 1.6 Preview (Version: 1.6-preview, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

197K · in $1 · out $5

Gemma 4 31B IT

Apr 2026

Gemma 4 31B IT (Version: 001, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

295K · in - · out -

Gemma 4 26B A4B IT

Apr 2026

Gemma 4 26B A4B IT (Version: 001, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

295K · in - · out -

Gemini 3.1 Flash-Lite Preview

Mar 2026

Gemini 3.1 Flash Lite Preview (Version: 3.1-flash-lite-preview-03-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M · in $0.25 · out $1.5

Nano Banana 2 Preview

Feb 2026

Gemini 3.1 Flash Image Preview. (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

131K · in $0.5 · out $3

Gemini 3.1 Pro Preview

Feb 2026

Gemini 3.1 Pro Preview (Version: 3.1-pro-preview-01-2026, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M · in $2 · out $12

Gemini 3.1 Pro Preview (Custom Tools)

Feb 2026

1.1M · in $2 · out $12

Gemini 3 Flash Preview

Dec 2025

Gemini 3 Flash Preview (Version: 3-flash-preview-12-2025, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M · in $0.5 · out $3

Deep Research Pro Preview

Dec 2025

Preview release (December 12th, 2025) of Deep Research Pro (Version: deepthink-exp-05-20, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K · in $1.25 · out $10

Nano Banana Pro

Nov 2025

Gemini 3 Pro Image Preview (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

164K · in $2 · out $12

Nano Banana Pro Preview

Nov 2025

Gemini 3 Pro Image Preview (Version: 3.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

164K · in $2 · out $12

Gemini 2.5 Computer Use Preview 10-2025

Oct 2025

Gemini 2.5 Computer Use Preview 10-2025 (Version: Gemini 2.5 Computer Use Preview 10-2025, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens])

197K · in $1.25 · out $10

Nano Banana

Oct 2025

Gemini 2.5 Flash Preview Image (Version: 2.0, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,batchGenerateContent])

66K · in $0.3 · out -

Gemini 2.5 Flash-Lite

Jul 2025

1.1M · in $0.1 · out $0.4

Gemini 2.5 Pro

Jun 2025

Stable release (June 17th, 2025) of Gemini 2.5 Pro (Version: 2.5, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[generateContent,countTokens,createCachedContent,batchGenerateContent])

1.1M · in $1.25 · out $10

Gemini 2.5 Flash

Jun 2025

1.1M · in $0.3 · out $2.5

Gemini 2.5 Flash Preview TTS

May 2025

Gemini 2.5 Flash Preview TTS (Version: gemini-2.5-flash-exp-tts-2025-05-19, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[countTokens,generateContent])

25K · in $0.5 · out -

Gemini 2.5 Pro Preview TTS

May 2025

Gemini 2.5 Pro Preview TTS (Version: gemini-2.5-pro-preview-tts-2025-05-19, Defaults: temperature=1, topP=0.95, topK=64, interfaces=[countTokens,generateContent,batchGenerateContent])

25K · in $1 · out -

Gemini 2.0 Flash 001

Feb 2025

1.1M · in $0.1 · out $0.4

27 models · sorted by release date · prices in USD per 1M tokens · refreshed every 30 minutes

Bring your Google Gemini key. Keep control.

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

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