Gemini 3.1 Models by Google DeepMind
11 models2026Up to 1.05m ctxFrom $0.25/1M input
Last refreshed 2026-06-19. Next refresh: weekly.
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
JSON / 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.
Decision facts
- Best fit
- image generationaudiovision and multimodal work
- Capability starting point
- Gemini 3.1 Flash-Lite with 1.05m context and JSON / Tool use, structured outputs, and multimodal inputs
- Lowest tracked input
- Gemini 3.1 Flash Lite Preview · $0.25/1M · Google AI Studio
- Closest related family
- T5Gemma
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, JSON / Tool use, and structured outputs.
2026-051.05m contextJSON / Tool usestructured outputs
Gemini 3.1 Flash-LiteCurrent
Use when the workload needs 1m context, JSON / Tool use, and structured outputs.
2026-051m contextJSON / Tool usestructured outputs
Gemini Deep Research PreviewCurrent
Use when the workload needs 1m context, JSON / Tool use, and structured outputs.
2026-041m contextJSON / Tool usestructured outputs
Use when the workload needs 1m context, JSON / Tool use, and structured outputs.
2026-041m contextJSON / Tool usestructured outputs
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, JSON / Tool use, and structured outputs.
2026-021m contextJSON / Tool usestructured outputs
Use when the workload needs 1m context, structured outputs, and multimodal inputs.
2026-011m contextstructured outputsmultimodal inputs
Use when the workload needs 128k context, JSON / Tool use, and structured outputs.
2026-01128k contextJSON / Tool usestructured outputs
| 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, JSON / Tool use, and structured outputs. | 2026-05 | 1.05m contextJSON / Tool usestructured outputs | Current |
| Gemini 3.1 Flash-Lite | Use when the workload needs 1m context, JSON / Tool use, and structured outputs. | 2026-05 | 1m contextJSON / Tool usestructured outputs | Current |
| Gemini Deep Research Preview | Use when the workload needs 1m context, JSON / Tool use, and structured outputs. | 2026-04 | 1m contextJSON / Tool usestructured outputs | Current |
| Gemini Deep Research Max Preview | Use when the workload needs 1m context, JSON / Tool use, and structured outputs. | 2026-04 | 1m contextJSON / Tool usestructured outputs | 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, JSON / Tool use, and structured outputs. | 2026-02 | 1m contextJSON / Tool usestructured outputs | 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, JSON / Tool use, and structured outputs. | 2026-01 | 128k contextJSON / Tool usestructured outputs | Current |
Release Timeline
5 release groups2026-05
3 current
Gemini 3.1 Flash-Lite
Current1.05m contextJSON / Tool usestructured outputs
Gemini 3.1 Flash-Lite
Current1m contextJSON / Tool usestructured outputs
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 contextJSON / Tool usestructured outputs
Gemini Deep Research Preview
Current1m contextJSON / Tool usestructured outputs
2026-03
2 retired
Gemini 3.1 Flash Lite Preview
Replaced1m contextJSON / Tool usestructured outputs
Replaced
2026-02
1 current
Gemini 3.1 Pro Preview
Current1m contextJSON / Tool usestructured outputs
2026-01
2 current
Gemini 3.1 Flash Live Preview
Current128k contextJSON / Tool usestructured outputs
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 | JSON / Tool use | Structured Outputs | Code Exec |
|---|---|---|---|---|---|---|---|---|
| Nano Banana 2 (Gemini 3.1 Flash Image) | 2026-05 | 131k | Yes | Yes | Yes | No | No | No |
| Gemini 3.1 Flash-Lite | 2026-05 | 1.05m | Yes | Yes | No | Yes | Yes | Yes |
| Gemini 3.1 Flash-Lite | 2026-05 | 1m | Yes | Yes | No | Yes | Yes | Yes |
| Gemini Deep Research Preview | 2026-04 | 1m | Yes | Yes | No | Yes | Yes | No |
| Gemini Deep Research Max Preview | 2026-04 | 1m | Yes | Yes | No | Yes | Yes | No |
| Gemini 3.1 Flash TTS Preview | 2026-04 | 16k | No | No | No | No | No | No |
| Gemini 3.1 Pro Preview | 2026-02 | 1m | Yes | Yes | No | Yes | Yes | Yes |
| Gemini 3.1 Pro Preview Custom Tools | 2026-01 | 1m | Yes | Yes | No | No | Yes | No |
| Gemini 3.1 Flash Live Preview | 2026-01 | 128k | Yes | Yes | No | Yes | Yes | No |
Available From(6 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 |
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Related Model Families
Models(11)
Nano Banana 2 (Gemini 3.1 Flash Image)
2026-05131k2 providers
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