Gemini 2.0 Flash Lite offers a significantly faster time to first token (TTFT) compared to [Gemini Flash 1.5](/google/gemini-flash-1.5), while maintaining quality on par with larger models like [Gemini Pro 1.5](/google/gemini-pro-1.5), all …
Model details →Google: Gemini 2.0 Flash Lite vs xAI: Grok 4 Fast
Google: Gemini 2.0 Flash Lite and xAI: Grok 4 Fast are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. It comes in two flavors: non-reasoning and reasoning. Read more about the model on xAI's [news post](http://x.ai/news/grok-4-fast). Reaso…
Model details →Side-by-side comparison
| Capability | Google: Gemini 2.0 Flash Lite | xAI: Grok 4 Fast | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.0M | 2M | 🏆 xAI: Grok 4 Fast |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.07 | $0.20 | 🏆 Google: Gemini 2.0 Flash Lite |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.30 | $0.50 | 🏆 Google: Gemini 2.0 Flash Lite |
| 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 | 🏆 xAI: Grok 4 Fast |
Frequently asked questions
Is Google: Gemini 2.0 Flash Lite better than xAI: Grok 4 Fast?
Google: Gemini 2.0 Flash Lite and xAI: Grok 4 Fast are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Google: Gemini 2.0 Flash Lite and xAI: Grok 4 Fast?
Input: $0.07 vs $0.20 per 1M tokens. Output: $0.30 vs $0.50 per 1M tokens.
What context windows do Google: Gemini 2.0 Flash Lite and xAI: Grok 4 Fast support?
Google: Gemini 2.0 Flash Lite supports up to 1.0M tokens. xAI: Grok 4 Fast supports up to 2M tokens.
Do both Google: Gemini 2.0 Flash Lite and xAI: Grok 4 Fast support tool calling?
Google: Gemini 2.0 Flash Lite: yes. xAI: Grok 4 Fast: yes.