Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool use performance with substantially lower latency than la…
Model details →Google: Gemini 3 Flash Preview vs OpenAI: o3 Deep Research
Google: Gemini 3 Flash Preview wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
o3-deep-research is OpenAI's advanced model for deep research, designed to tackle complex, multi-step research tasks. Note: This model always uses the 'web_search' tool which adds additional cost.
Model details →Side-by-side comparison
| Capability | Google: Gemini 3 Flash Preview | OpenAI: o3 Deep Research | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.0M | 200K | 🏆 Google: Gemini 3 Flash Preview |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.50 | $10.00 | 🏆 Google: Gemini 3 Flash Preview |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $3.00 | $40.00 | 🏆 Google: Gemini 3 Flash Preview |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Google: Gemini 3 Flash Preview better than OpenAI: o3 Deep Research?
Google: Gemini 3 Flash Preview wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Google: Gemini 3 Flash Preview and OpenAI: o3 Deep Research?
Input: $0.50 vs $10.00 per 1M tokens. Output: $3.00 vs $40.00 per 1M tokens.
What context windows do Google: Gemini 3 Flash Preview and OpenAI: o3 Deep Research support?
Google: Gemini 3 Flash Preview supports up to 1.0M tokens. OpenAI: o3 Deep Research supports up to 200K tokens.
Do both Google: Gemini 3 Flash Preview and OpenAI: o3 Deep Research support tool calling?
Google: Gemini 3 Flash Preview: yes. OpenAI: o3 Deep Research: yes.