Gemini 3.1 Models by Google DeepMind
11 models2026Up to 1.05m ctxFrom $0.25/1M input
Details
ResearcherGoogle DeepMind
LicenseProprietary
Commercial useCommercial use: conditional
Models11
Released2026
Max context1.05m
Capabilities
Vision9 of 11 models
Multimodal9 of 11 models
Reasoning1 of 11 models
Function Calling7 of 11 models
Tool Use7 of 11 models
Structured Outputs8 of 11 models
Code Execution4 of 11 models
Links
WebsiteAbout
Google DeepMind's Gemini 3.1 family refines Gemini 3 Pro with improved thinking, enhanced token efficiency, and optimizations for software engineering and agentic workflows.
Current Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
9 in view2 retired
Use when the workload needs image generation, 131k context, and reasoning.
2026-05image generation131k contextreasoning
Gemini 3.1 Flash-LiteCurrent
Use when the workload needs 1.05m context, tool use, and function calling.
2026-051.05m contexttool usefunction calling
Gemini 3.1 Flash-LiteCurrent
Use when the workload needs 1m context, tool use, and function calling.
2026-051m contexttool usefunction calling
Gemini Deep Research PreviewCurrent
Use when the workload needs 1m context, tool use, and function calling.
2026-041m contexttool usefunction calling
Use when the workload needs 1m context, tool use, and function calling.
2026-041m contexttool usefunction calling
Gemini 3.1 Flash TTS PreviewCurrent
Use when the workload needs audio and 16k context.
2026-04audio16k context
Gemini 3.1 Pro PreviewCurrent
Use when the workload needs 1m context, tool use, and function calling.
2026-021m contexttool usefunction calling
Use when the workload needs 1m context, structured outputs, and multimodal inputs.
2026-011m contextstructured outputsmultimodal inputs
Use when the workload needs 128k context, tool use, and function calling.
2026-01128k contexttool usefunction calling
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| Nano Banana 2 (Gemini 3.1 Flash Image) | Use when the workload needs image generation, 131k context, and reasoning. | 2026-05 | image generation131k contextreasoning | Current |
| Gemini 3.1 Flash-Lite | Use when the workload needs 1.05m context, tool use, and function calling. | 2026-05 | 1.05m contexttool usefunction calling | Current |
| Gemini 3.1 Flash-Lite | Use when the workload needs 1m context, tool use, and function calling. | 2026-05 | 1m contexttool usefunction calling | Current |
| Gemini Deep Research Preview | Use when the workload needs 1m context, tool use, and function calling. | 2026-04 | 1m contexttool usefunction calling | Current |
| Gemini Deep Research Max Preview | Use when the workload needs 1m context, tool use, and function calling. | 2026-04 | 1m contexttool usefunction calling | Current |
| Gemini 3.1 Flash TTS Preview | Use when the workload needs audio and 16k context. | 2026-04 | audio16k context | Current |
| Gemini 3.1 Pro Preview | Use when the workload needs 1m context, tool use, and function calling. | 2026-02 | 1m contexttool usefunction calling | Current |
| Gemini 3.1 Pro Preview Custom Tools | Use when the workload needs 1m context, structured outputs, and multimodal inputs. | 2026-01 | 1m contextstructured outputsmultimodal inputs | Current |
| Gemini 3.1 Flash Live Preview | Use when the workload needs 128k context, tool use, and function calling. | 2026-01 | 128k contexttool usefunction calling | Current |
Release Timeline
5 release groups2026-05
3 current
Gemini 3.1 Flash-Lite
Current1.05m contexttool usefunction calling
Gemini 3.1 Flash-Lite
Current1m contexttool usefunction calling
Nano Banana 2 (Gemini 3.1 Flash Image)
Currentimage generation131k contextreasoning
2026-04
3 current
Gemini 3.1 Flash TTS Preview
Currentaudio16k context
Gemini Deep Research Max Preview
Current1m contexttool usefunction calling
Gemini Deep Research Preview
Current1m contexttool usefunction calling
2026-03
2 retired
Gemini 3.1 Flash Lite Preview
Replaced1m contexttool usefunction calling
Replaced
2026-02
1 current
Gemini 3.1 Pro Preview
Current1m contexttool usefunction calling
2026-01
2 current
Gemini 3.1 Flash Live Preview
Current128k contexttool usefunction calling
Gemini 3.1 Pro Preview Custom Tools
Current1m contextstructured outputsmultimodal inputs
Replaced By
Keep for legacy integrations; evaluate Gemini 3.1 Flash-Lite before new work.
Keep for legacy integrations; evaluate Nano Banana 2 (Gemini 3.1 Flash Image) before new work.
Specifications(11 models)
| Model | Released | Context | Vision | Multimodal | Reasoning | Fn Calling | Tool Use | Structured Outputs | Code Exec |
|---|---|---|---|---|---|---|---|---|---|
| Nano Banana 2 (Gemini 3.1 Flash Image) | 2026-05 | 131k | Yes | Yes | Yes | No | No | No | No |
| Gemini 3.1 Flash-Lite | 2026-05 | 1.05m | Yes | Yes | No | Yes | Yes | Yes | Yes |
| Gemini 3.1 Flash-Lite | 2026-05 | 1m | Yes | Yes | No | Yes | Yes | Yes | Yes |
| Gemini Deep Research Preview | 2026-04 | 1m | Yes | Yes | No | Yes | Yes | Yes | No |
| Gemini Deep Research Max Preview | 2026-04 | 1m | Yes | Yes | No | Yes | Yes | Yes | No |
| Gemini 3.1 Flash TTS Preview | 2026-04 | 16k | No | No | No | No | No | No | No |
| Gemini 3.1 Pro Preview | 2026-02 | 1m | Yes | Yes | No | Yes | Yes | Yes | Yes |
| Gemini 3.1 Pro Preview Custom Tools | 2026-01 | 1m | Yes | Yes | No | No | No | Yes | No |
| Gemini 3.1 Flash Live Preview | 2026-01 | 128k | Yes | Yes | No | Yes | Yes | Yes | No |
Available From(5 providers)
Pricing
| Model | Provider | Input / 1M | Output / 1M | Type |
|---|---|---|---|---|
| Gemini 3.1 Flash-Lite | Google AI Studio | $0.25 | $1.5 | Serverless |
| Gemini 3.1 Flash-Lite | OpenRouter | $0.25 | $1.5 | Serverless |
| Gemini 3.1 Flash-Lite | Vercel AI Gateway | $0.25 | $1.5 | Serverless |
| Nano Banana 2 (Gemini 3.1 Flash Image) | Google AI Studio | $0.5 | $60 | Serverless |
| Gemini 3.1 Flash Live Preview | Google AI Studio | $0.75 | $4.5 | Serverless |
| Gemini 3.1 Flash TTS Preview | Google AI Studio | $1 | — | Serverless |
| Gemini 3.1 Pro Preview | Google AI Studio | $2 | $12 | Serverless |
| Gemini 3.1 Pro Preview | GCP Vertex AI | $2 | $12 | Serverless |
| Gemini 3.1 Pro Preview Custom Tools | OpenRouter | $2 | $12 | Serverless |
| Gemini 3.1 Pro Preview | OpenRouter | $2 | $12 | Serverless |
| Gemini Deep Research Preview | Google AI Studio | $2 | $12 | Serverless |
| Gemini Deep Research Max Preview | Google AI Studio | $2 | $12 | Serverless |
| Gemini 3.1 Pro Preview | Replicate API | $2 | $12 | Serverless |
| Gemini 3.1 Pro Preview | Vercel AI Gateway | $2 | $12 | Serverless |
Frequently Asked Questions
- What is Gemini 3.1 used for?
- Gemini 3.1 is used for image generation, audio, and vision and multimodal work. The family description and listed model capabilities point to those workloads as the best fit.
- How does Gemini 3.1 compare to Gemma 4?
- Gemini 3.1 by Google DeepMind is strongest where you need image generation, while Gemma 4 by Google DeepMind is the closest related family to check for multimodal. Gemini 3.1 has 11 listed variants and reaches up to 1.05m context, while Gemma 4 reaches up to 256k context, so compare the specs and pricing tables before choosing a production model.
- Which Gemini 3.1 model should I use?
- For the lowest listed input price, start with Gemini 3.1 Flash Lite Preview through Google AI Studio at $0.25/1M input tokens. For the most capable/latest local choice, evaluate Gemini 3.1 Flash-Lite with 1.05m context and tool use, function calling, structured outputs, and multimodal inputs.
Related Model Families
Models(11)
Nano Banana 2 (Gemini 3.1 Flash Image)
2026-05131k1 provider
MultimodalReasoning
Gemini 3.1 Flash-Lite
2026-051.05m3 providers
Multimodal
Gemini 3.1 Flash-Lite
2026-051m
Multimodal
Gemini Deep Research Preview
2026-041m1 provider
Multimodal
Gemini Deep Research Max Preview
2026-041m1 provider
Multimodal
Gemini 3.1 Flash TTS Preview
2026-0416k1 provider
Gemini 3.1 Pro Preview
2026-021m5 providers
Multimodal
Gemini 3.1 Pro Preview Custom Tools
2026-011m1 provider
Multimodal
Gemini 3.1 Flash Live Preview
2026-01128k1 provider
Multimodal