Gemini 3 Deep Think: Intelligence, Performance & Price Analysis
Model summary
Performance
Verbosity
Gemini 3 Deep Think supports text input, outputs text, and has a 128k tokens context window.
| Reasoning | Yes |
|---|---|
| Input modality | Supports: text |
| Output modality | Supports: text |
| Context window | 128k ~192 A4 pages of size 12 Arial font |
Metrics are compared against models of the same class:
- Non-reasoning models → compared only with other non-reasoning models
- Reasoning models → compared across both reasoning and non-reasoning
- Open weights models → compared only with other open weights models of the same size class:
- Tiny: ≤4B parameters
- Small: 4B–40B parameters
- Medium: 40B–150B parameters
- Large: >150B parameters
- Proprietary models → compared across proprietary and open weights models of the same price range, using a blended 3:1 input/output price ratio:
- <$0.15 per 1M tokens
- $0.15–$1 per 1M tokens
- >$1 per 1M tokens
Time per Task
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Index vs. Cost per Task
Cost
Cost per Intelligence Index Task
Cost to Run Artificial Analysis Intelligence Index
Pricing: Cache Hit, Input, and Output
Context Window
Context Window
Further details
Weights | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gemini 3 Deep Think | - | - | 128k | - | - | - | Not available | - |
Frequently Asked Questions
Common questions about Gemini 3 Deep Think
Gemini 3 Deep Think was released on February 5, 2026.
Gemini 3 Deep Think was created by Google.
Yes, Gemini 3 Deep Think is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer.
Gemini 3 Deep Think supports text input.
Gemini 3 Deep Think supports text output.
No, Gemini 3 Deep Think does not support image input. It can only process text.
No, Gemini 3 Deep Think is not multimodal. It only supports text input.
Gemini 3 Deep Think has a context window of 128k tokens. This determines how much text and conversation history the model can process in a single request.
No, Gemini 3 Deep Think is proprietary. The model weights are not publicly available.
Gemini 3 Deep Think is a proprietary model and Google has not disclosed the model size or parameter count.
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